1
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Morelli Venturi D, Sole Notari M, Trovarelli L, Mosconi E, Alothman AA, Molokova A, Ruser N, Meier C, Achenbach B, Lomachenko KA, Del Giacco T, Costantino F, Stock N. Synthesis, Structure and (Photo)Catalytic Behavior of Ce-MOFs Containing Perfluoroalkylcarboxylate Linkers: Experimental and Theoretical Insights. Chemistry 2024:e202400433. [PMID: 38568800 DOI: 10.1002/chem.202400433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/12/2024] [Accepted: 03/28/2024] [Indexed: 04/05/2024]
Abstract
Cerium-based Metal-Organic frameworks (Ce-MOFs) are attracting increasing interest due to their similar structural features to zirconium MOFs. The redox behavior of Ce(III/IV) adds a range of properties to the compounds. Recently, perfluorinated linkers have been used in the synthesis of MOFs to introduce new characteristic into the structure. We report the synthesis and structural characterization of Ce(IV)-based MOFs constructed using two perfluorinated alkyl linkers. Their structure, based on hexanuclear Ce6O4(OH)4 12+ clusters linked to each other by the dicarboxylate ions, has been solved ab-initio from X-ray powder diffraction data and refined by the Rietveld method. The crystallization kinetics and the MOF formation mechanism was also invesitigated by Synchrotron radiation with XAS spectroscopies (EXAFS and XANES). The MOFs present the same fcu cubic topology as observed in MOF-801 and UiO-66, and they showed good stability in water at different pH conditions. The electronic structure of these MOFs has been studied by DFT calculations in order to obtain insights into the density of states structure of the reported compounds, resulting in band gaps in the range of 2.8-3.1 eV. Their catalytic properties were tested both thermally and under visible light irradiation for the degradation of methyl orange (MO) dye.
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Affiliation(s)
- Diletta Morelli Venturi
- Institute of Inorganic Chemistry, Christian-Albrecht University of Kiel, Max-Eyth-Straße 2, 24118, Kiel, Germany
- Kiel Nano, Surface and Interface Science KiNSIS, Christian-Albrecht University of Kiel, Christian-Albrechts-Platz 4, 24118, Kiel, Germany
| | - Maria Sole Notari
- Department of chemistry, biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123, Perugia, Italy
| | - Letizia Trovarelli
- Department of chemistry, biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123, Perugia, Italy
| | - Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche "Giulio Natta" (CNR-SCITEC), Via Elce di Sotto 8, 06123, Perugia, Italy
- Chemistry Department, College of Science, King Saud University, 11451, Riyadh, Kingdom of Saudi Arabia
| | - Asma A Alothman
- Chemistry Department, College of Science, King Saud University, 11451, Riyadh, Kingdom of Saudi Arabia
| | - Anastasia Molokova
- European Synchrotron Radiation Facility, Avenue des Martyrs 71, 38043, Grenoble Cedex 9, France
| | - Niklas Ruser
- Institute of Inorganic Chemistry, Christian-Albrecht University of Kiel, Max-Eyth-Straße 2, 24118, Kiel, Germany
| | - Christoph Meier
- Institute of Inorganic Chemistry, Christian-Albrecht University of Kiel, Max-Eyth-Straße 2, 24118, Kiel, Germany
| | - Bastian Achenbach
- Institute of Inorganic Chemistry, Christian-Albrecht University of Kiel, Max-Eyth-Straße 2, 24118, Kiel, Germany
| | - Kirill A Lomachenko
- European Synchrotron Radiation Facility, Avenue des Martyrs 71, 38043, Grenoble Cedex 9, France
| | - Tiziana Del Giacco
- Department of chemistry, biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123, Perugia, Italy
| | - Ferdinando Costantino
- Department of chemistry, biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123, Perugia, Italy
| | - Norbert Stock
- Institute of Inorganic Chemistry, Christian-Albrecht University of Kiel, Max-Eyth-Straße 2, 24118, Kiel, Germany
- Kiel Nano, Surface and Interface Science KiNSIS, Christian-Albrecht University of Kiel, Christian-Albrechts-Platz 4, 24118, Kiel, Germany
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2
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Arsenault EA, Li Y, Yang B, Wang X, Park H, Mosconi E, Ronca E, Taniguchi T, Watanabe K, Gamelin D, Millis A, Dean CR, de Angelis F, Xu X, Zhu XY. Two-Dimensional Moiré Polaronic Electron Crystals. Phys Rev Lett 2024; 132:126501. [PMID: 38579228 DOI: 10.1103/physrevlett.132.126501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 02/03/2024] [Accepted: 02/23/2024] [Indexed: 04/07/2024]
Abstract
Two-dimensional moiré materials have emerged as the most versatile platform for realizing quantum phases of electrons. Here, we explore the stability origins of correlated states in WSe_{2}/WS_{2} moiré superlattices. We find that ultrafast electronic excitation leads to partial melting of the Mott states on timescales 5 times longer than predictions from the charge hopping integrals and that the melting rates are thermally activated, with activation energies of 18±3 and 13±2 meV for the one- and two-hole Mott states, respectively, suggesting significant electron-phonon coupling. A density functional theory calculation of the one-hole Mott state confirms polaron formation and yields a hole-polaron binding energy of 16 meV. These findings reveal a close interplay of electron-electron and electron-phonon interactions in stabilizing the polaronic Mott insulators at transition metal dichalcogenide moiré interfaces.
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Affiliation(s)
- Eric A Arsenault
- Department of Chemistry, Columbia University, New York, New York 10027, USA
| | - Yiliu Li
- Department of Chemistry, Columbia University, New York, New York 10027, USA
| | - Birui Yang
- Department of Physics, Columbia University, New York, New York 10027, USA
| | - Xi Wang
- Department of Physics, University of Washington, Seattle, Washington 98195, USA
- Department of Chemistry, University of Washington, Seattle, Washington 98195, USA
| | - Heonjoon Park
- Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - Edoardo Mosconi
- Istituto CNR di Scienze e Tecnologie Chimiche (CNR-SCITEC), CLHYO, 06123 Perugia, Italy
| | - Enrico Ronca
- Department of Chemistry, Biology and Biotechnology, University of Perugia, 06123, Perugia, Italy
| | - Takashi Taniguchi
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan
| | - Kenji Watanabe
- Research Center for Functional Materials, National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan
| | - Daniel Gamelin
- Department of Chemistry, University of Washington, Seattle, Washington 98195, USA
| | - Andrew Millis
- Department of Physics, Columbia University, New York, New York 10027, USA
| | - Cory R Dean
- Department of Physics, Columbia University, New York, New York 10027, USA
| | - Filippo de Angelis
- Istituto CNR di Scienze e Tecnologie Chimiche (CNR-SCITEC), CLHYO, 06123 Perugia, Italy
- Department of Chemistry, Biology and Biotechnology, University of Perugia, 06123, Perugia, Italy
- Department of Mechanical Engineering, Prince Mohammad Bin Fahd University, Al Khobar, 31952, Saudi Arabia
- SKKU Institute of Energy Science and Technology, Sungkyunkwan University, Suwon, Korea 440-746
| | - Xiaodong Xu
- Department of Physics, University of Washington, Seattle, Washington 98195, USA
- Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195, USA
| | - X Y Zhu
- Department of Chemistry, Columbia University, New York, New York 10027, USA
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3
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Coccia C, Morana M, Mahata A, Kaiser W, Moroni M, Albini B, Galinetto P, Folpini G, Milanese C, Porta A, Mosconi E, Petrozza A, De Angelis F, Malavasi L. Ligand-Induced Chirality in ClMBA 2 SnI 4 2D Perovskite. Angew Chem Int Ed Engl 2024; 63:e202318557. [PMID: 38189576 DOI: 10.1002/anie.202318557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/07/2024] [Accepted: 01/08/2024] [Indexed: 01/09/2024]
Abstract
Chiral perovskites possess a huge applicative potential in several areas of optoelectronics and spintronics. The development of novel lead-free perovskites with tunable properties is a key topic of current research. Herein, we report a novel lead-free chiral perovskite, namely (R/S-)ClMBA2 SnI4 (ClMBA=1-(4-chlorophenyl)ethanamine) and the corresponding racemic system. ClMBA2 SnI4 samples exhibit a low band gap (2.12 eV) together with broad emission extending in the red region of the spectrum (∼1.7 eV). Chirality transfer from the organic ligand induces chiroptical activity in the 465-530 nm range. Density functional theory calculations show a Rashba type band splitting for the chiral samples and no band splitting for the racemic isomer. Self-trapped exciton formation is at the origin of the large Stokes shift in the emission. Careful correlation with analogous lead and lead-free 2D chiral perovskites confirms the role of the symmetry-breaking distortions in the inorganic layers associated with the ligands as the source of the observed chiroptical properties providing also preliminary structure-property correlation in 2D chiral perovskites.
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Affiliation(s)
- Clarissa Coccia
- Department of Chemistry and INSTM, University of Pavia, Via Tarameli 12, 27100, Pavia, Italy
| | - Marta Morana
- Department of Earth Science, University of Firenze, Via G. La Pira 4, 50121, Firenze, Italy
| | - Arup Mahata
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche "Giulio Natta" (CNR-SCITEC), 06123, Perugia, Italy
- Department of Chemistry, Indian Institute of Technology Hyderabad Kandi, Sangareddy, Telangana, 502285, India
| | - Waldemar Kaiser
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche "Giulio Natta" (CNR-SCITEC), 06123, Perugia, Italy
| | - Marco Moroni
- Department of Chemistry and INSTM, University of Pavia, Via Tarameli 12, 27100, Pavia, Italy
| | - Benedetta Albini
- Department of Physics, University of Pavia, Via Bassi 6, 27100, Pavia, Italy
| | - Pietro Galinetto
- Department of Physics, University of Pavia, Via Bassi 6, 27100, Pavia, Italy
| | - Giulia Folpini
- Center for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, 20133, Milan, Italy
- Istituto di Fotonica e Nanotecnologie - CNR, 20133, Milan, Italy
| | - Chiara Milanese
- Department of Chemistry and INSTM, University of Pavia, Via Tarameli 12, 27100, Pavia, Italy
| | - Alessio Porta
- Department of Chemistry and INSTM, University of Pavia, Via Tarameli 12, 27100, Pavia, Italy
| | - Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche "Giulio Natta" (CNR-SCITEC), 06123, Perugia, Italy
| | - Annamaria Petrozza
- Center for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, 20133, Milan, Italy
| | - Filippo De Angelis
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche "Giulio Natta" (CNR-SCITEC), 06123, Perugia, Italy
- Department of Chemistry, Biology and Biotechnology, University of Perugia and INSTM, 06123, Perugia, Italy
- SKKU Institute of Energy Science and Technology (SIEST) Sungkyunkwan University, Suwon, 440-746, Korea
| | - Lorenzo Malavasi
- Department of Chemistry and INSTM, University of Pavia, Via Tarameli 12, 27100, Pavia, Italy
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4
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Yang B, Suo J, Bogachuk D, Kaiser W, Baretzky C, Er-Raji O, Loukeris G, Alothman AA, Mosconi E, Kohlstädt M, Würfel U, De Angelis F, Hagfeldt A. A universal ligand for lead coordination and tailored crystal growth in perovskite solar cells. Energy Environ Sci 2024; 17:1549-1558. [PMID: 38384422 PMCID: PMC10877579 DOI: 10.1039/d3ee02344c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 01/04/2024] [Indexed: 02/23/2024]
Abstract
Chemical environment and precursor-coordinating molecular interactions within a perovskite precursor solution can lead to important implications in structural defects and crystallization kinetics of a perovskite film. Thus, the opto-electronic quality of such films can be boosted by carefully fine-tuning the coordination chemistry of perovskite precursors via controllable introduction of additives, capable of forming intermediate complexes. In this work, we employed a new type of ligand, namely 1-phenylguanidine (PGua), which coordinates strongly with the PbI2 complexes in the perovskite precursor, forming new intermediate species. These strong interactions effectively retard the perovskite crystallization process and form homogeneous films with enlarged grain sizes and reduced density of defects. In combination with an interfacial treatment, the resulted champion devices exhibit a 24.6% efficiency with outstanding operational stability. Unprecedently, PGua can be applied in various PSCs with different perovskite compositions and even in both configurations: n-i-p and p-i-n, highlighting the universality of this ligand.
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Affiliation(s)
- Bowen Yang
- Department of Chemistry - Ångström Laboratory, Uppsala University SE-75120 Uppsala Sweden
- Laboratory of Photomolecular Science, Institute of Chemical Sciences and Engineering, School of Basic Sciences, Ecole Polytechnique Fédérale de Lausanne CH-1015 Lausanne Switzerland
| | - Jiajia Suo
- Department of Chemistry - Ångström Laboratory, Uppsala University SE-75120 Uppsala Sweden
- Laboratory of Photomolecular Science, Institute of Chemical Sciences and Engineering, School of Basic Sciences, Ecole Polytechnique Fédérale de Lausanne CH-1015 Lausanne Switzerland
| | - Dmitry Bogachuk
- Fraunhofer Institute for Solar Energy Systems ISE, Heidenhofstr. 2 79110 Freiburg Germany
| | - Waldemar Kaiser
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche "Giulio Natta" (CNR-SCITEC), Via Elce di Sotto 8 06123 Perugia Italy
| | - Clemens Baretzky
- Fraunhofer Institute for Solar Energy Systems ISE, Heidenhofstr. 2 79110 Freiburg Germany
- Freiburg Materials Research Center FMF, University of Freiburg, Stefan-Meier-Str. 21 79104 Freiburg Germany
| | - Oussama Er-Raji
- Fraunhofer Institute for Solar Energy Systems ISE, Heidenhofstr. 2 79110 Freiburg Germany
- Department of Sustainable Systems Engineering (INATECH), Albert-Ludwigs-Universität Freiburg, Emmy-Noether-str. 2 79110 Freiburg Germany
| | - Georgios Loukeris
- Fraunhofer Institute for Solar Energy Systems ISE, Heidenhofstr. 2 79110 Freiburg Germany
- Freiburg Materials Research Center FMF, University of Freiburg, Stefan-Meier-Str. 21 79104 Freiburg Germany
| | - Asma A Alothman
- Chemistry Department, College of Science, King Saud University Riyadh 11451 Kingdom of Saudi Arabia
| | - Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche "Giulio Natta" (CNR-SCITEC), Via Elce di Sotto 8 06123 Perugia Italy
- Chemistry Department, College of Science, King Saud University Riyadh 11451 Kingdom of Saudi Arabia
| | - Markus Kohlstädt
- Fraunhofer Institute for Solar Energy Systems ISE, Heidenhofstr. 2 79110 Freiburg Germany
- Freiburg Materials Research Center FMF, University of Freiburg, Stefan-Meier-Str. 21 79104 Freiburg Germany
| | - Uli Würfel
- Fraunhofer Institute for Solar Energy Systems ISE, Heidenhofstr. 2 79110 Freiburg Germany
- Freiburg Materials Research Center FMF, University of Freiburg, Stefan-Meier-Str. 21 79104 Freiburg Germany
| | - Filippo De Angelis
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche "Giulio Natta" (CNR-SCITEC), Via Elce di Sotto 8 06123 Perugia Italy
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8 06123 Perugia Italy
- SKKU Institute of Energy Science and Technology (SIEST), Sungkyunkwan University 440-746 Suwon Korea
| | - Anders Hagfeldt
- Department of Chemistry - Ångström Laboratory, Uppsala University SE-75120 Uppsala Sweden
- Laboratory of Photomolecular Science, Institute of Chemical Sciences and Engineering, School of Basic Sciences, Ecole Polytechnique Fédérale de Lausanne CH-1015 Lausanne Switzerland
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5
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Suo J, Yang B, Mosconi E, Bogachuk D, Doherty TAS, Frohna K, Kubicki DJ, Fu F, Kim Y, Er-Raji O, Zhang T, Baldinelli L, Wagner L, Tiwari AN, Gao F, Hinsch A, Stranks SD, De Angelis F, Hagfeldt A. Multifunctional sulfonium-based treatment for perovskite solar cells with less than 1% efficiency loss over 4,500-h operational stability tests. Nat Energy 2024; 9:172-183. [PMID: 38419691 PMCID: PMC10896729 DOI: 10.1038/s41560-023-01421-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 11/21/2023] [Indexed: 03/02/2024]
Abstract
The stabilization of grain boundaries and surfaces of the perovskite layer is critical to extend the durability of perovskite solar cells. Here we introduced a sulfonium-based molecule, dimethylphenethylsulfonium iodide (DMPESI), for the post-deposition treatment of formamidinium lead iodide perovskite films. The treated films show improved stability upon light soaking and remains in the black α phase after two years ageing under ambient condition without encapsulation. The DMPESI-treated perovskite solar cells show less than 1% performance loss after more than 4,500 h at maximum power point tracking, yielding a theoretical T80 of over nine years under continuous 1-sun illumination. The solar cells also display less than 5% power conversion efficiency drops under various ageing conditions, including 100 thermal cycles between 25 °C and 85 °C and an 1,050-h damp heat test.
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Affiliation(s)
- Jiajia Suo
- Department of Chemistry–Ångström Laboratory, Uppsala University, Uppsala, Sweden
- Laboratory of Photomolecular Science, Institute of Chemical Sciences and Engineering, School of Basic Sciences, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Bowen Yang
- Department of Chemistry–Ångström Laboratory, Uppsala University, Uppsala, Sweden
- Laboratory of Photomolecular Science, Institute of Chemical Sciences and Engineering, School of Basic Sciences, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche ‘Giulio Natta’ (CNR-SCITEC), Perugia, Italy
| | - Dmitry Bogachuk
- Fraunhofer Institute for Solar Energy Systems ISE, Freiburg, Germany
- Department of Sustainable Systems Engineering (INATECH), Albert-Ludwigs-Universität Freiburg, Freiburg, Germany
- Solarlab Aiko Europe GmbH, Freiburg, Germany
| | - Tiarnan A. S. Doherty
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, UK
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, UK
| | - Kyle Frohna
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, UK
- Cavendish Laboratory, Department of Physics, University of Cambridge, Cambridge, UK
| | - Dominik J. Kubicki
- Department of Physics, University of Warwick, Coventry, UK
- Present Address: School of Chemistry, University of Birmingham, Edgbaston, UK
| | - Fan Fu
- Laboratory for Thin Films and Photovoltaics, Empa−Swiss Federal Laboratories for Materials Science and Technology, Duebendorf, Switzerland
| | - YeonJu Kim
- Laboratory of Photomolecular Science, Institute of Chemical Sciences and Engineering, School of Basic Sciences, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
- Laboratory for Molecular Engineering of Optoelectronic Nanomaterials, Institute of Chemical Sciences and Engineering, School of Basic Sciences, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Oussama Er-Raji
- Fraunhofer Institute for Solar Energy Systems ISE, Freiburg, Germany
- Department of Sustainable Systems Engineering (INATECH), Albert-Ludwigs-Universität Freiburg, Freiburg, Germany
| | - Tiankai Zhang
- Department of Physics, Chemistry and Biology (IFM), Linköping University, Linköping, Sweden
| | - Lorenzo Baldinelli
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Perugia, Italy
| | - Lukas Wagner
- Fraunhofer Institute for Solar Energy Systems ISE, Freiburg, Germany
- Physics of Solar Energy Conversion Group, Department of Physics, Philipps-University Marburg, Marburg, Germany
| | - Ayodhya N. Tiwari
- Laboratory for Thin Films and Photovoltaics, Empa−Swiss Federal Laboratories for Materials Science and Technology, Duebendorf, Switzerland
| | - Feng Gao
- Department of Physics, Chemistry and Biology (IFM), Linköping University, Linköping, Sweden
| | - Andreas Hinsch
- Fraunhofer Institute for Solar Energy Systems ISE, Freiburg, Germany
| | - Samuel D. Stranks
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, UK
- Cavendish Laboratory, Department of Physics, University of Cambridge, Cambridge, UK
| | - Filippo De Angelis
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche ‘Giulio Natta’ (CNR-SCITEC), Perugia, Italy
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Perugia, Italy
- Department of Natural Sciences and Mathematics, College of Sciences and Human Studies, Prince Mohammad Bin Fahd University, Dhahran, Saudi Arabia
- SKKU Institute of Energy Science and Technology (SIEST), Sungkyunkwan University, Suwon, Korea
| | - Anders Hagfeldt
- Department of Chemistry–Ångström Laboratory, Uppsala University, Uppsala, Sweden
- Laboratory of Photomolecular Science, Institute of Chemical Sciences and Engineering, School of Basic Sciences, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
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6
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Hidalgo J, Kaiser W, An Y, Li R, Oh Z, Castro-Méndez AF, LaFollette DK, Kim S, Lai B, Breternitz J, Schorr S, Perini CAR, Mosconi E, De Angelis F, Correa-Baena JP. Synergistic Role of Water and Oxygen Leads to Degradation in Formamidinium-Based Halide Perovskites. J Am Chem Soc 2023; 145. [PMID: 37917967 PMCID: PMC10655111 DOI: 10.1021/jacs.3c05657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 10/17/2023] [Accepted: 10/18/2023] [Indexed: 11/04/2023]
Abstract
Mixed-cation metal halide perovskites have shown remarkable progress in photovoltaic applications with high power conversion efficiencies. However, to achieve large-scale deployment of this technology, efficiencies must be complemented by long-term durability. The latter is limited by external factors, such as exposure to humidity and air, which lead to the rapid degradation of the perovskite materials and devices. In this work, we study the mechanisms causing Cs and formamidinium (FA)-based halide perovskite phase transformations and stabilization during moisture and air exposure. We use in situ X-ray scattering, X-ray photoelectron spectroscopy, and first-principles calculations to study these chemical interactions and their effects on structure. We unravel a surface reaction pathway involving the dissolution of FAI by water and iodide oxidation by oxygen, driving the Cs/FA ratio into thermodynamically unstable regions, leading to undesirable phase transformations. This work demonstrates the interplay of bulk phase transformations with surface chemical reactions, providing a detailed understanding of the degradation mechanism and strategies for designing durable and efficient perovskite materials.
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Affiliation(s)
- Juanita Hidalgo
- School
of Materials Science and Engineering, Georgia
Institute of Technology, Atlanta, Georgia 30332, United States
| | - Waldemar Kaiser
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta”
(CNR-SCITEC), Perugia 06123, Italy
| | - Yu An
- School
of Materials Science and Engineering, Georgia
Institute of Technology, Atlanta, Georgia 30332, United States
| | - Ruipeng Li
- National
Synchrotron Light Source II, Brookhaven
National Lab, Upton, New York 11973, United States
| | - Zion Oh
- School
of Materials Science and Engineering, Georgia
Institute of Technology, Atlanta, Georgia 30332, United States
| | - Andrés-Felipe Castro-Méndez
- School
of Materials Science and Engineering, Georgia
Institute of Technology, Atlanta, Georgia 30332, United States
| | - Diana K. LaFollette
- School
of Materials Science and Engineering, Georgia
Institute of Technology, Atlanta, Georgia 30332, United States
| | - Sanggyun Kim
- School
of Materials Science and Engineering, Georgia
Institute of Technology, Atlanta, Georgia 30332, United States
| | - Barry Lai
- Advanced
Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Joachim Breternitz
- Department
of Structure and Dynamics of Energy Materials, Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, Berlin 14109, Germany
| | - Susan Schorr
- Department
of Structure and Dynamics of Energy Materials, Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, Berlin 14109, Germany
- Freie Universitaet
Berlin, Institute of Geological Sciences, Malteser Str. 74-200, Berlin 12249, Germany
| | - Carlo A. R. Perini
- School
of Materials Science and Engineering, Georgia
Institute of Technology, Atlanta, Georgia 30332, United States
| | - Edoardo Mosconi
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta”
(CNR-SCITEC), Perugia 06123, Italy
| | - Filippo De Angelis
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta”
(CNR-SCITEC), Perugia 06123, Italy
- Department
of Chemistry, Biology and Biotechnology, University of Perugia and UdR INSTM, Perugia 06123, Italy
- Department
of Natural Sciences & Mathematics, College of Sciences & Human
Studies, Prince Mohammad Bin Fahd University, Dhahran 34754, Saudi Arabia
- SKKU
Institute of Energy Science and Technology (SIEST), Sungkyunkwan University, Suwon 440-746, Korea
| | - Juan-Pablo Correa-Baena
- School
of Materials Science and Engineering, Georgia
Institute of Technology, Atlanta, Georgia 30332, United States
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7
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Morana M, Kaiser W, Chiara R, Albini B, Meggiolaro D, Mosconi E, Galinetto P, De Angelis F, Malavasi L. Origin of Broad Emission Induced by Rigid Aromatic Ditopic Cations in Low-Dimensional Metal Halide Perovskites. J Phys Chem Lett 2023; 14:7860-7868. [PMID: 37638524 PMCID: PMC10494231 DOI: 10.1021/acs.jpclett.3c01872] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 08/16/2023] [Indexed: 08/29/2023]
Abstract
The development of broadband emitters based on metal halide perovskites (MHPs) requires the elucidation of structure-emission property correlations. Herein, we report a combined experimental and theoretical study on a series of novel low-dimensional lead chloride perovskites, including ditopic aromatic cations. Synthesized lead chloride perovskites and their bromide analogues show both narrow and broad photoluminescence emission properties as a function of their cation and halide nature. Structural analysis shows a correlation between the rigidity of the ditopic cations and the lead halide octahedral distortions. Density functional theory calculations reveal, in turn, the pivotal role of octahedral distortions in the formation of self-trapped excitons, which are responsible for the insurgence of broad emission and large Stokes shifts together with a contribution of halide vacancies. For the considered MHP series, the use of conventional octahedral distortion parameters allows us to nicely describe the trend of emission properties, thus providing a solid guide for further materials design.
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Affiliation(s)
- Marta Morana
- Department
of Chemistry and INSTM, University of Pavia, Via Taramelli 16, Pavia 27100, Italy
| | - Waldemar Kaiser
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio
Natta” (CNR-SCITEC), Perugia 06123, Italy
| | - Rossella Chiara
- Department
of Chemistry and INSTM, University of Pavia, Via Taramelli 16, Pavia 27100, Italy
| | - Benedetta Albini
- Department
of Physics, University of Pavia, Via Bassi 6, Pavia 27100, Italy
| | - Daniele Meggiolaro
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio
Natta” (CNR-SCITEC), Perugia 06123, Italy
| | - Edoardo Mosconi
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio
Natta” (CNR-SCITEC), Perugia 06123, Italy
| | - Pietro Galinetto
- Department
of Physics, University of Pavia, Via Bassi 6, Pavia 27100, Italy
| | - Filippo De Angelis
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio
Natta” (CNR-SCITEC), Perugia 06123, Italy
- Department
of Chemistry, Biology and Biotechnology, University of Perugia and INSTM, Perugia 06123, Italy
- SKKU
Institute of Energy Science and Technology (SIEST) Sungkyunkwan University, Suwon 440-746, Korea
| | - Lorenzo Malavasi
- Department
of Chemistry and INSTM, University of Pavia, Via Taramelli 16, Pavia 27100, Italy
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8
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Soriano-Díaz I, Radicchi E, Bizzarri B, Bizzarri O, Mosconi E, Ashraf MW, De Angelis F, Nunzi F. Modeling the Interaction of Coronavirus Membrane Phospholipids with Photocatalitically Active Titanium Dioxide. J Phys Chem Lett 2023:5914-5923. [PMID: 37343210 DOI: 10.1021/acs.jpclett.3c01372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/23/2023]
Abstract
The outbreak of viral infectious diseases urges airborne droplet and surface disinfection strategies, which may rely on photocatalytic semiconductors. A lipid bilayer membrane generally encloses coronaviruses and promotes the anchoring on the semiconductor surface, where, upon photon absorption, electron-hole pairs are produced, which can react with adsorbed oxygen-containing species and lead to the formation of reactive oxygen species (ROSs). The photogenerated ROSs may support the disruptive oxidation of the lipidic membrane and pathogen death. Density functional theory calculations are employed to investigate adsorption modes, energetics, and electronic structure of a reference phospholipid on anatase TiO2 nanoparticles. The phospholipid covalently bound on TiO2, engaging a stronger adsorption on the (101) than on the (001) surface. The energetically most stable structure involves the formation of four covalent bonds through phosphate and carbonyl oxygen atoms. The adsorbates show a reduction of the band gap compared with standalone TiO2, suggesting a significant interfacial coupling.
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Affiliation(s)
- Iván Soriano-Díaz
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
- Instituto de Ciencia Molecular, Universidad de Valencia, 46980 Paterna, Spain
| | - Eros Radicchi
- Nanomaterials Research Group, Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134 Verona, Italy
| | - Beatrice Bizzarri
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Consiglio Nazionale delle Ricerche (CNR) - Istituto di Scienze e Tecnologie Chimiche "Giulio Natta" - SCITEC, Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Olivia Bizzarri
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Consiglio Nazionale delle Ricerche (CNR) - Istituto di Scienze e Tecnologie Chimiche "Giulio Natta" - SCITEC, Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Consiglio Nazionale delle Ricerche (CNR) - Istituto di Scienze e Tecnologie Chimiche "Giulio Natta" - SCITEC, Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Muhammad Waqar Ashraf
- Department of Natural Sciences and Mathematics, College of Sciences and Human Studies, Prince Mohammad Bin Fahd University, Khobar, Dhahran 34754 Saudi Arabia
| | - Filippo De Angelis
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Consiglio Nazionale delle Ricerche (CNR) - Istituto di Scienze e Tecnologie Chimiche "Giulio Natta" - SCITEC, Via Elce di Sotto 8, 06123 Perugia, Italy
- Department of Natural Sciences and Mathematics, College of Sciences and Human Studies, Prince Mohammad Bin Fahd University, Khobar, Dhahran 34754 Saudi Arabia
- SKKU Institute of Energy Science and Technology (SIEST), Sungkyunkwan University, Suwon 440-746, Korea
| | - Francesca Nunzi
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Consiglio Nazionale delle Ricerche (CNR) - Istituto di Scienze e Tecnologie Chimiche "Giulio Natta" - SCITEC, Via Elce di Sotto 8, 06123 Perugia, Italy
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9
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Giangregorio F, Garolfi M, Mosconi E, Ricevuti L, Debellis MG, Mendozza M, Esposito C, Vigotti E, Cadei D, Abruzzese D. High frame-rate contrast enhanced ultrasound (HIFR-CEUS) in the characterization of small hepatic lesions in cirrhotic patients. J Ultrasound 2023; 26:71-79. [PMID: 36227456 PMCID: PMC10063709 DOI: 10.1007/s40477-022-00724-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 08/22/2022] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND To show the effectiveness of plane wave HighFrame-Rate CEUS (HiFR-CEUS) compared with "conventional" (plane wave) CEUS (C-CEUS) in the characterization of small (< 2 cm) focal liver lesions (FLLs) not easily detected by CT in cirrhotic patients. HiFR-CEUS exploit an ultra-wideband nonlinear process to combine fundamental, second and higher-order harmonic signals generated by ultrasound contrast agents to increase the frame rate. C-CEUS is limited by the transmission principle, and its frame-rate is around 10 FPS. With HiFR-CEUS (Shenzhen Mindray Bio-Medical Electronics Co., China), the frame-rate reached 60 FPS. MATERIAL AND METHODS Ultrasound detected small FLLs (< 2 cm) in 63 cirrhotic patients during follow-up (June 2019-February 2020); (7 nodules < 1 cm and were not evaluable by spiral CT). Final diagnosis was obtained with MRI (47) or fine needle aspiration (16 cases) C-CEUS was performed and HiFR-CEUS was repeated after 5 min; 0.8-1.2 ml of contrast media (SonoVue, Bracco, Italy) was used. 57 nodules were better evaluable with HiFR-CEUS; 6 nodules were equally evaluable by both techniques; final diagnosis was: 44 benign lesions (29 hemangiomas, 1 amartoma, 2 hepatic cysts; 2 focal nodular hyperplasias, 3 regenerative macronodules, 3 AV-shunts, 3 hepatic sparing areas and 1 focal steatosis) and 19 malignant one (17 HCCs, 1 cholangioca, 1 metastasis); statistical evaluation for better diagnosis with X2 test (SPSS vers. 26); we used LI-RADS classification for evaluating sensitivity, specificity PPV, NPV and diagnostic accuracy of C- and HFR-CEUS. Corrispective AU-ROC were calculated. RESULTS C-CEUS and HiFR-CEUS reached the same diagnosis in 29 nodules (13 nodules > 1 < 1.5 cm; 16 nodules > 1.5 < 2 cm); HiFR-CEUS reached a correct diagnosis in 32 nodules where C-CEUS was not diagnostic (6 nodules < 1 cm; 17 nodules > 1 < 1.5 cm; 9 nodules > 1.5 < 2 cm); C-CEUS was better in 2 nodules (1 < 1 cm and 1 > 1 < 1.5 cm). Some patient's (sex, BMI, age) and nodule's characteristics (liver segment, type of diagnosis, nodule's dimensions (p = 0.65)) were not correlated with better diagnosis (p ns); only better visualization (p 0.004) was correlated; C-CEUS obtained the following LI-RADS: type-1: 18 Nodules, type-2: 21; type-3: 7, type-4: 7; type-5: 8; type-M: 2; HiFR-CEUS: type-1: 38 Nodules, type-2: 2; type-3:4, type-4: 2; type-5: 15; type-M: 2; In comparison with final diagnosis: C-CEUS: TP: 17; TN: 39; FP: 5; FN:2; HIFR-CEUS: TP: 18; TN: 41; FP: 3; FN:1; C-CEUS: sens: 89.5%; Spec: 88.6%, PPV: 77.3%; NPV: 95.1%; Diagn Acc: 88.6% (AU-ROC: 0.994 ± SEAUC: 0.127; CI: 0.969-1.019); HiHFR CEUS: sens: 94.7%; Spec: 93.2%, PPV: 85.7%; NPV: 97.6%; Diagn Acc: 93.2% (AU-ROC: 0.9958 ± SEAUC: 0.106; CI: 0.975-1.017) FLL vascularization in the arterial phase was more visible with HiFR-CEUS than with C-CEUS, capturing the perfusion details in the arterial phase due to a better temporal resolution. With a better temporal resolution, the late phase could be evaluated longer with HiFR-CEUS (4 min C-CEUS vs. 5 min HiFR-CEUS). CONCLUSION Both C-CEUS and HIFR-CEUS are good non invasive imaging system for the characterization of small lesions detected during follow up of cirrhotic patients. HiFR-CEUS allowed better FLL characterization in cirrhotic patients with better temporal and spatial resolution capturing the perfusion details that cannot be easily observed with C-CEUS.
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Affiliation(s)
| | - M Garolfi
- Ospedale Civico di Codogno, Lodi, Italy
| | - E Mosconi
- Ospedale Civico di Codogno, Lodi, Italy
| | | | | | | | | | - E Vigotti
- Ospedale Civico di Codogno, Lodi, Italy
| | - D Cadei
- Ospedale Civico di Codogno, Lodi, Italy
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10
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Romani L, Speltini A, Chiara R, Morana M, Coccia C, Tedesco C, Armenise V, Colella S, Milella A, Listorti A, Profumo A, Ambrosio F, Mosconi E, Pau R, Pitzalis F, Simbula A, Ricciarelli D, Saba M, Medina-Llamas M, De Angelis F, Malavasi L. Air- and water-stable and photocatalytically active germanium-based 2D perovskites by organic spacer engineering. Cell Rep Phys Sci 2023; 4:101214. [PMID: 37292086 PMCID: PMC10246422 DOI: 10.1016/j.xcrp.2022.101214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 11/22/2022] [Accepted: 12/08/2022] [Indexed: 06/10/2023]
Abstract
There is increasing interest in the role of metal halide perovskites for heterogeneous catalysis. Here, we report a Ge-based 2D perovskite material that shows intrinsic water stability realized through organic cation engineering. Incorporating 4-phenylbenzilammonium (PhBz) we demonstrate, by means of extended experimental and computational results, that PhBz2GeBr4 and PhBz2GeI4 can achieve relevant air and water stability. The creation of composites embedding graphitic carbon nitride (g-C3N4) allows a proof of concept for light-induced hydrogen evolution in an aqueous environment by 2D Ge-based perovskites thanks to the effective charge transfer at the heterojunction between the two semiconductors.
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Affiliation(s)
- Lidia Romani
- Department of Chemistry and INSTM, University of Pavia, Via Taramelli 16, 27100 Pavia, Italy
- Tecnologie di Generazione e Materiali, Ricerca sul Sistema Energetico - RSE S.p.A., Via Rubattino 54, 20134 Milano, Italy
| | - Andrea Speltini
- Department of Chemistry and INSTM, University of Pavia, Via Taramelli 16, 27100 Pavia, Italy
| | - Rossella Chiara
- Department of Chemistry and INSTM, University of Pavia, Via Taramelli 16, 27100 Pavia, Italy
| | - Marta Morana
- Department of Chemistry and INSTM, University of Pavia, Via Taramelli 16, 27100 Pavia, Italy
| | - Clarissa Coccia
- Department of Chemistry and INSTM, University of Pavia, Via Taramelli 16, 27100 Pavia, Italy
| | - Costanza Tedesco
- Department of Chemistry and INSTM, University of Pavia, Via Taramelli 16, 27100 Pavia, Italy
| | - Vincenza Armenise
- Department of Chemistry, University of Bari “Aldo Moro,” via Orabona 4, 70126 Bari, Italy
| | - Silvia Colella
- National Research Council, Institute of Nanotechnology (CNR-NANOTEC), c/o Department of Chemistry, University of Bari “Aldo Moro,” via Orabona 4, 70126 Bari, Italy
| | - Antonella Milella
- Department of Chemistry, University of Bari “Aldo Moro,” via Orabona 4, 70126 Bari, Italy
| | - Andrea Listorti
- Department of Chemistry, University of Bari “Aldo Moro,” via Orabona 4, 70126 Bari, Italy
| | - Antonella Profumo
- Department of Chemistry and INSTM, University of Pavia, Via Taramelli 16, 27100 Pavia, Italy
| | - Francesco Ambrosio
- Dipartimento di Scienze, University of Basilicata, Viale dell’Ateno Lucano, 10, 85100 Potenza, Italy
- Department of Chemistry and Biology “A. Zambelli,” University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Salerno, Italy
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta” (CNR-SCITEC), via Elce di Sotto 8, 06123 Perugia, Italy
| | - Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta” (CNR-SCITEC), via Elce di Sotto 8, 06123 Perugia, Italy
| | - Riccardo Pau
- Department of Physics, University of Cagliari, Cittadella Universitaria S.P. Monserrato-Sestu km 0.7, 09042 Monserrato, Italy
- Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 09747 Groningen, the Netherlands
| | - Federico Pitzalis
- Department of Physics, University of Cagliari, Cittadella Universitaria S.P. Monserrato-Sestu km 0.7, 09042 Monserrato, Italy
| | - Angelica Simbula
- Department of Physics, University of Cagliari, Cittadella Universitaria S.P. Monserrato-Sestu km 0.7, 09042 Monserrato, Italy
| | - Damiano Ricciarelli
- Unidad Académica Preparatoria, Plantel II, Universidad Autónoma de Zacatecas, Zacatecas, Zacatecas 98068, México
| | - Michele Saba
- Department of Physics, University of Cagliari, Cittadella Universitaria S.P. Monserrato-Sestu km 0.7, 09042 Monserrato, Italy
| | - Maria Medina-Llamas
- Department of Chemistry and INSTM, University of Pavia, Via Taramelli 16, 27100 Pavia, Italy
- Unidad Académica Preparatoria, Plantel II, Universidad Autónoma de Zacatecas, Zacatecas, Zacatecas 98068, México
| | - Filippo De Angelis
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta” (CNR-SCITEC), via Elce di Sotto 8, 06123 Perugia, Italy
- Department of Chemistry, Biology and Biotechnology, University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy
- Department of Natural Sciences & Mathematics, College of Sciences & Human Studies, Prince Mohammad Bin Fahd University, Dhahran 34754, Saudi Arabia
| | - Lorenzo Malavasi
- Department of Chemistry and INSTM, University of Pavia, Via Taramelli 16, 27100 Pavia, Italy
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11
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Venturi D, Notari MS, Bondi R, Mosconi E, Kaiser W, Mercuri G, Giambastiani G, Rossin A, Taddei M, Costantino F. Increased CO 2 Affinity and Adsorption Selectivity in MOF-801 Fluorinated Analogues. ACS Appl Mater Interfaces 2022; 14:40801-40811. [PMID: 36039930 PMCID: PMC9478941 DOI: 10.1021/acsami.2c07640] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 08/12/2022] [Indexed: 06/15/2023]
Abstract
The novel ZrIV-based perfluorinated metal-organic framework (PF-MOF) [Zr6O4(OH)4(TFS)6] (ZrTFS) was prepared under solvent-free conditions using the commercially available tetrafluorosuccinic acid (H2TFS) as a bridging ditopic linker. Since H2TFS can be seen as the fully aliphatic and perfluorinated C4 analogue of fumaric acid, ZrTFS was found to be isoreticular to zirconium fumarate (MOF-801). The structure of ZrTFS was solved and refined from X-ray powder diffraction data. Despite this analogy, the gas adsorption capacity of ZrTFS is much lower than that of MOF-801; in the former, the presence of bulky fluorine atoms causes a considerable window size reduction. To have PF-MOFs with more accessible porosity, postsynthetic exchange (PSE) reactions on (defective) MOF-801 suspended in H2TFS aqueous solutions were carried out. Despite the different H2TFS concentrations used in the PSE process, the exchanges yielded two mixed-linker materials of similar minimal formulae [Zr6O4(μ3-OH)4(μ1-OH)2.08(H2O)2.08(FUM)4.04(HTFS)1.84] (PF-MOF1) and [Zr6O4(μ3-OH)4(μ1-OH)1.83(H2O)1.83(FUM)4.04(HTFS)2.09] (PF-MOF2) (FUM2- = fumarate), where the perfluorinated linker was found to fully replace the capping acetate in the defective sites of pristine MOF-801. CO2 and N2 adsorption isotherms collected on all samples reveal that both CO2 thermodynamic affinity (isosteric heat of adsorption at zero coverage, Qst) and CO2/N2 adsorption selectivity increase with the amount of incorporated TFS2-, reaching the maximum values of 30 kJ mol-1 and 41 (IAST), respectively, in PF-MOF2. This confirms the beneficial effect coming from the introduction of fluorinated linkers in MOFs on their CO2 adsorption ability. Finally, solid-state density functional theory calculations were carried out to cast light on the structural features and on the thermodynamics of CO2 adsorption in MOF-801 and ZrTFS. Due to the difficulties in modeling a defective MOF, an intermediate structure containing both linkers in the framework was also designed. In this structure, the preferential CO2 adsorption site is the tetrahedral pore in the "UiO-66-like" structure. The extra energy stabilization stems from a hydrogen bond interaction between CO2 and a hydroxyl group on the inorganic cluster.
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Affiliation(s)
- Diletta
Morelli Venturi
- Department
of Chemistry, Biology and Biotechnology, Università degli Studi di Perugia, via Elce di Sotto, 8, 06123 Perugia, Italy
| | - Maria Sole Notari
- Department
of Chemistry, Biology and Biotechnology, Università degli Studi di Perugia, via Elce di Sotto, 8, 06123 Perugia, Italy
| | - Roberto Bondi
- Department
of Chemistry, Biology and Biotechnology, Università degli Studi di Perugia, via Elce di Sotto, 8, 06123 Perugia, Italy
| | - Edoardo Mosconi
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta”
(CNR-SCITEC), Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Waldemar Kaiser
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta”
(CNR-SCITEC), Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Giorgio Mercuri
- Istituto
di Chimica dei Composti Organometallici (CNR-ICCOM), Via Madonna del Piano 10, 50019 Sesto Fiorentino, Firenze, Italy
- Scuola
del Farmaco e dei Prodotti della Salute, Università di Camerino, Via S. Agostino 1, 62032 Camerino, Italy
| | - Giuliano Giambastiani
- Istituto
di Chimica dei Composti Organometallici (CNR-ICCOM), Via Madonna del Piano 10, 50019 Sesto Fiorentino, Firenze, Italy
| | - Andrea Rossin
- Istituto
di Chimica dei Composti Organometallici (CNR-ICCOM), Via Madonna del Piano 10, 50019 Sesto Fiorentino, Firenze, Italy
| | - Marco Taddei
- Department
of Chemistry and Industrial Chemistry, University
of Pisa, Via Giuseppe
Moruzzi 13, 56124 Pisa, Italy
| | - Ferdinando Costantino
- Department
of Chemistry, Biology and Biotechnology, Università degli Studi di Perugia, via Elce di Sotto, 8, 06123 Perugia, Italy
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12
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Kaiser W, Ricciarelli D, Mosconi E, Alothman AA, Ambrosio F, De Angelis F. Stability of Tin- versus Lead-Halide Perovskites: Ab Initio Molecular Dynamics Simulations of Perovskite/Water Interfaces. J Phys Chem Lett 2022; 13:2321-2329. [PMID: 35245058 PMCID: PMC8935372 DOI: 10.1021/acs.jpclett.2c00273] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 02/28/2022] [Indexed: 05/27/2023]
Abstract
Tin-halide perovskites (THPs) have emerged as promising lead-free perovskites for photovoltaics and photocatalysis applications but still fall short in terms of stability and efficiency with respect to their lead-based counterpart. A detailed understanding of the degradation mechanism of THPs in a water environment is missing. This Letter presents ab initio molecular dynamics (AIMD) simulations to unravel atomistic details of THP/water interfaces comparing methylammonium tin iodide, MASnI3, with the lead-based MAPbI3. Our results reveal facile solvation of surface tin-iodine bonds in MASnI3, while MAPbI3 remains more robust to degradation despite a larger amount of adsorbed water molecules. Additional AIMD simulations on dimethylammonium tin bromide, DMASnBr3, investigate the origins of their unprecedented water stability. Our results indicate the presence of amorphous surface layers of hydrated zero-dimensional SnBr3 complexes which may protect the inner structure from degradation and explain their success as photocatalysts. We believe that the atomistic details of the mechanisms affecting THP (in-)stability may inspire new strategies to stabilize THPs.
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Affiliation(s)
- Waldemar Kaiser
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta”
(CNR-SCITEC), Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Damiano Ricciarelli
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta”
(CNR-SCITEC), Via Elce di Sotto 8, 06123 Perugia, Italy
- Department
of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Edoardo Mosconi
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta”
(CNR-SCITEC), Via Elce di Sotto 8, 06123 Perugia, Italy
- Chemistry
Department, College of Science, King Saud
University, Riyadh 11451, Kingdom of Saudi Arabia
| | - Asma A. Alothman
- Chemistry
Department, College of Science, King Saud
University, Riyadh 11451, Kingdom of Saudi Arabia
| | - Francesco Ambrosio
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta”
(CNR-SCITEC), Via Elce di Sotto 8, 06123 Perugia, Italy
- Department
of Chemistry and Biology “A. Zambelli”, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Salerno, Italy
- CNST@Polimi,
Istituto Italiano di Tecnologia, Via Pascoli 70/3, 20133 Milano, Italy
| | - Filippo De Angelis
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta”
(CNR-SCITEC), Via Elce di Sotto 8, 06123 Perugia, Italy
- Department
of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
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13
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Kaiser W, Carignano M, Alothman AA, Mosconi E, Kachmar A, Goddard WA, De Angelis F. First-Principles Molecular Dynamics in Metal-Halide Perovskites: Contrasting Generalized Gradient Approximation and Hybrid Functionals. J Phys Chem Lett 2021; 12:11886-11893. [PMID: 34875174 DOI: 10.1021/acs.jpclett.1c03428] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
First-principles molecular dynamics (FPMD) represents a valuable tool to probe dynamical properties of metal-halide perovskites (MHPs) which are key to their success in optoelectronic devices. Most FPMD studies rely on generalized gradient approximation (GGA) functionals for computational efficiency matters, while hybrid functionals, although computationally demanding, are usually needed to accurately describe structural and electronic properties of MHPs. This Letter reports FPMD simulations on CsPbI3 based on the hybrid PBE0 functional. Our results demonstrate that PBE0 leads to lattice parameters and phonon modes in excellent agreement with experimental data, while GGA results overestimate the lattice parameter and the electronic band gap and underestimate the phonon energies. Our FPMD results also shed light on anharmonic effects and double-well instabilities in the octahedral tilting, highlighting a lowered free energy barrier for PBE0 and farther separated potential wells. Our results suggest that hybrid functionals are required to accurately describe crystal structure, lattice dynamics, and anharmonicity in MHPs.
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Affiliation(s)
- Waldemar Kaiser
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche "Giulio Natta" (CNR-SCITEC), Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Marcelo Carignano
- Department of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Asma A Alothman
- Chemistry Department, College of Science, King Saud University, Riyadh 11451, Kingdom of Saudi Arabia
| | - Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche "Giulio Natta" (CNR-SCITEC), Via Elce di Sotto 8, 06123 Perugia, Italy
- Chemistry Department, College of Science, King Saud University, Riyadh 11451, Kingdom of Saudi Arabia
| | - Ali Kachmar
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche "Giulio Natta" (CNR-SCITEC), Via Elce di Sotto 8, 06123 Perugia, Italy
| | - William A Goddard
- Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125, United States
| | - Filippo De Angelis
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche "Giulio Natta" (CNR-SCITEC), Via Elce di Sotto 8, 06123 Perugia, Italy
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
- CompuNet, Istituto Italiano di Tecnologia, Genova 16163, Italy
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14
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Przypis L, Ahmad T, Misztal K, Honisz D, Radicchi E, Mosconi E, Domagala W, De Angelis F, Wojciechowski K. Designing New Indene-Fullerene Derivatives as Electron-Transporting Materials for Flexible Perovskite Solar Cells. J Phys Chem C Nanomater Interfaces 2021; 125:27344-27353. [PMID: 35116086 PMCID: PMC8802170 DOI: 10.1021/acs.jpcc.1c07189] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 11/22/2021] [Indexed: 06/14/2023]
Abstract
The synthesis and characterization of a family of indene-C60 adducts obtained via Diels-Alder cycloaddition [4 + 2] are reported. The new C60 derivatives include indenes with a variety of functional groups. These adducts show lowest unoccupied molecular orbital energy levels to be at the right position to consider these compounds as electron-transporting materials for planar heterojunction perovskite solar cells. Selected derivatives were applied into inverted (p-i-n configuration) perovskite device architectures, fabricated on flexible polymer substrates, with large active areas (1 cm2). The highest power conversion efficiency, reaching 13.61%, was obtained for the 6'-acetamido-1',4'-dihydro-naphtho[2',3':1,2][5,6]fullerene-C60 (NHAc-ICMA). Spectroscopic characterization was applied to visualize possible passivation effects of the perovskite's surface induced by these adducts.
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Affiliation(s)
- Lukasz Przypis
- Saule
Research Institute, Wroclaw
Technology Park, 11 Dunska Street, Sigma Building, 54-130 Wrocław, Poland
- Department
of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Silesian University of Technology, Bolesława Krzywoustego 4, 44-100 Gliwice, Poland
| | - Taimoor Ahmad
- Saule
Technologies Ltd., Wroclaw
Technology Park, 11 Dunska Street, Sigma Building, 54-130 Wrocław, Poland
- Department
of Electronics Engineering, University of
Rome “Tor Vergata”, Via del Politecnico 1, 00133 Rome, Italy
| | - Kasjan Misztal
- Saule
Research Institute, Wroclaw
Technology Park, 11 Dunska Street, Sigma Building, 54-130 Wrocław, Poland
| | - Damian Honisz
- Department
of Physical Chemistry and Technology of Polymers, Silesian University of Technology, Marcina Strzody 9, 44-100 Gliwice, Poland
| | - Eros Radicchi
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta”
(CNR-SCITEC), Via Elce
di Sotto 8, 06123 Perugia, Italy
- Department
of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Edoardo Mosconi
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta”
(CNR-SCITEC), Via Elce
di Sotto 8, 06123 Perugia, Italy
| | - Wojciech Domagala
- Department
of Physical Chemistry and Technology of Polymers, Silesian University of Technology, Marcina Strzody 9, 44-100 Gliwice, Poland
| | - Filippo De Angelis
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta”
(CNR-SCITEC), Via Elce
di Sotto 8, 06123 Perugia, Italy
- Department
of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
- CompuNet,
Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- Department
of Mechanical Engineering, College of Engineering, Prince Mohammad Bin Fahd University,
P.O. Box 1664, 31952 Al Khobar, Kingdom of Saudi Arabia
| | - Konrad Wojciechowski
- Saule
Research Institute, Wroclaw
Technology Park, 11 Dunska Street, Sigma Building, 54-130 Wrocław, Poland
- Saule
Technologies Ltd., Wroclaw
Technology Park, 11 Dunska Street, Sigma Building, 54-130 Wrocław, Poland
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15
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Elliott JD, Mosconi E, De Angelis F, Ambrosetti A, Umari P. Real Space-Real Time Evolution of Excitonic States Based on the Bethe-Salpeter Equation Method. J Phys Chem Lett 2021; 12:7261-7269. [PMID: 34314589 DOI: 10.1021/acs.jpclett.1c01742] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
We introduce a method for constructing localized excitations and simulating the real time dynamics of excitons at the Many-Body Perturbation Theory Bethe-Salpeter Equation level. We track, on the femto-seconds scale, electron injection from a photoexcited dye into a semiconducting slab. From the time-dependent many-body wave function we compute the spatial evolution of the electron and of the hole; full electron injection is attained within 5 fs. Time-resolved analysis of the electron density and electron-hole interaction energy hints at a two-step charge transfer mechanism through an intermediary partially injected state. We adopt the Von-Neumann entropy for analyzing how the electron and hole entangle. We find that the excitation of the dye-semiconductor model may be represented by a four-level system and register a decrease in entanglement upon electron injection. At full injection, the electron and the hole exhibit only a small degree of entanglement indicative of pure electron and hole states.
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Affiliation(s)
- Joshua D Elliott
- School of Chemical Engineering and Analytical Science, University of Manchester, Manchester, United Kingdom
| | - Edoardo Mosconi
- Istituto CNR di Scienze e Technologie Molecolare, via Elce di Sotto, 8, I-06123, Perugia, Italy
| | - Filippo De Angelis
- Istituto CNR di Scienze e Technologie Molecolare, via Elce di Sotto, 8, I-06123, Perugia, Italy
- CompuNet, Istituto Italiano di Technologie, via Morego 30, 16163, Genova, Italy
| | - Alberto Ambrosetti
- Dipartimento di Fisica e Astronomia, University of Padova, Padova, Italy
| | - Paolo Umari
- Dipartimento di Fisica e Astronomia, University of Padova, Padova, Italy
- CNR-IOM DEMOCRITOS, Consiglio Nazionale delle Ricerche-Istituto Officina dei Materiali, c/o SISSA, Via Bonomea 265, 34136, Trieste, Italy
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16
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Ricciarelli D, Meggiolaro D, Belanzoni P, Alothman AA, Mosconi E, De Angelis F. Energy vs Charge Transfer in Manganese-Doped Lead Halide Perovskites. ACS Energy Lett 2021; 6:1869-1878. [PMID: 35059501 PMCID: PMC8763376 DOI: 10.1021/acsenergylett.1c00553] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 04/20/2021] [Indexed: 05/03/2023]
Abstract
Mn-doped lead halide perovskites exhibit long-lived dopant luminescence and enhanced host excitonic quantum yield. The contention between energy and charge transfer in sensitizing dopant luminescence in Mn-doped perovskites is investigated by state-of-the-art DFT calculations on APbX3 perovskites (X = Cl, Br, and I). We quantitatively simulate the electronic structure of Mn-doped perovskites in various charge and spin states, providing a structural/mechanistic analysis of Mn sensitization as a function of the perovskite composition. Our analysis supports both energy- and charge-transfer mechanisms, with the latter probably preferred in Mn:CsPbCl3 due to small energy barriers and avoidance of spin and orbital restrictions. An essential factor determining the dopant luminescence quantum yield in the case of charge transfer is the energetics of intermediate oxidized species, while bandgap resonance can well explain energy transfer. Both aspects are mediated by perovskite host band edge energetics, which is tuned in turn by the nature of the halide X.
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Affiliation(s)
- Damiano Ricciarelli
- Department
of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, Perugia 06123, Italy
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta”
(CNR-SCITEC), Via Elce
di Sotto 8, Perugia 06123, Italy
| | - Daniele Meggiolaro
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta”
(CNR-SCITEC), Via Elce
di Sotto 8, Perugia 06123, Italy
| | - Paola Belanzoni
- Department
of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, Perugia 06123, Italy
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta”
(CNR-SCITEC), Via Elce
di Sotto 8, Perugia 06123, Italy
| | - Asma A. Alothman
- Chemistry
Department, College of Science, King Saud
University, Riyadh 11451, Saudi Arabia
| | - Edoardo Mosconi
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta”
(CNR-SCITEC), Via Elce
di Sotto 8, Perugia 06123, Italy
- Chemistry
Department, College of Science, King Saud
University, Riyadh 11451, Saudi Arabia
| | - Filippo De Angelis
- Department
of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, Perugia 06123, Italy
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta”
(CNR-SCITEC), Via Elce
di Sotto 8, Perugia 06123, Italy
- CompuNet, Istituto Italiano di Tecnologia, Via Morego 30, Genova 16163, Italy
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17
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Marchal N, Mosconi E, García-Espejo G, Almutairi TM, Quarti C, Beljonne D, De Angelis F. Cation Engineering for Resonant Energy Level Alignment in Two-Dimensional Lead Halide Perovskites. J Phys Chem Lett 2021; 12:2528-2535. [PMID: 33683137 DOI: 10.1021/acs.jpclett.0c03843] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Low-dimensional metal halide perovskites are being intensively investigated because of their higher stability and chemical versatility in comparison to their 3D counterparts. Unfortunately, this comes at the expense of the electronic and charge transport properties, limited by the reduced perovskite dimensionality. Cation engineering can be envisaged as a solution to tune and possibly further improve the material's optoelectronic properties. In this work, we screen and design new electronically active A-site cations that can promote charge transport across the inorganic layers. We show that hybridization of the valence band electronic states of the perovskite inorganic sublattice and the highest occupied molecular orbitals of the A-site organic cations can be tuned to exhibit a variety of optoelectronic properties. A significant interplay of A-cation size, electronic structure, and steric constraints is revealed, suggesting intriguing means of further tuning the 2D perovskite electronic structure toward achieving stable and efficient solar cell devices.
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Affiliation(s)
- Nadège Marchal
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche "Giulio Natta" (CNR-SCITEC), Via Elce di Sotto 8, 06123 Perugia, Italy
- Laboratory for Chemistry of Novel Materials, University of Mons, Place du Parc, 20, B-7000 Mons, Belgium
| | - Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche "Giulio Natta" (CNR-SCITEC), Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Gonzalo García-Espejo
- Departamento de Química Física, Instituto Universitario de Investigación en Química Fina y Nanoquímica, IUQFN, Universidad de Córdoba, Campus de Rabanales, Edificio Marie Curie, E-14071 Córdoba, Spain
| | - Tahani M Almutairi
- Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Claudio Quarti
- Laboratory for Chemistry of Novel Materials, University of Mons, Place du Parc, 20, B-7000 Mons, Belgium
| | - David Beljonne
- Laboratory for Chemistry of Novel Materials, University of Mons, Place du Parc, 20, B-7000 Mons, Belgium
| | - Filippo De Angelis
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche "Giulio Natta" (CNR-SCITEC), Via Elce di Sotto 8, 06123 Perugia, Italy
- CompuNet, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
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18
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Hassan Y, Park JH, Crawford ML, Sadhanala A, Lee J, Sadighian JC, Mosconi E, Shivanna R, Radicchi E, Jeong M, Yang C, Choi H, Park SH, Song MH, De Angelis F, Wong CY, Friend RH, Lee BR, Snaith HJ. Ligand-engineered bandgap stability in mixed-halide perovskite LEDs. Nature 2021; 591:72-77. [PMID: 33658694 DOI: 10.1038/s41586-021-03217-8] [Citation(s) in RCA: 217] [Impact Index Per Article: 72.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 01/11/2021] [Indexed: 01/31/2023]
Abstract
Lead halide perovskites are promising semiconductors for light-emitting applications because they exhibit bright, bandgap-tunable luminescence with high colour purity1,2. Photoluminescence quantum yields close to unity have been achieved for perovskite nanocrystals across a broad range of emission colours, and light-emitting diodes with external quantum efficiencies exceeding 20 per cent-approaching those of commercial organic light-emitting diodes-have been demonstrated in both the infrared and the green emission channels1,3,4. However, owing to the formation of lower-bandgap iodide-rich domains, efficient and colour-stable red electroluminescence from mixed-halide perovskites has not yet been realized5,6. Here we report the treatment of mixed-halide perovskite nanocrystals with multidentate ligands to suppress halide segregation under electroluminescent operation. We demonstrate colour-stable, red emission centred at 620 nanometres, with an electroluminescence external quantum efficiency of 20.3 per cent. We show that a key function of the ligand treatment is to 'clean' the nanocrystal surface through the removal of lead atoms. Density functional theory calculations reveal that the binding between the ligands and the nanocrystal surface suppresses the formation of iodine Frenkel defects, which in turn inhibits halide segregation. Our work exemplifies how the functionality of metal halide perovskites is extremely sensitive to the nature of the (nano)crystalline surface and presents a route through which to control the formation and migration of surface defects. This is critical to achieve bandgap stability for light emission and could also have a broader impact on other optoelectronic applications-such as photovoltaics-for which bandgap stability is required.
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Affiliation(s)
- Yasser Hassan
- Clarendon Laboratory, Department of Physics, University of Oxford, Oxford, UK.
| | - Jong Hyun Park
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea
| | - Michael L Crawford
- Department of Chemistry and Biochemistry, University of Oregon, Eugene, OR, USA
| | - Aditya Sadhanala
- Clarendon Laboratory, Department of Physics, University of Oxford, Oxford, UK.,Centre for Nano Science and Engineering, Indian Institute of Science, Bangalore, India.,Cavendish Laboratory, University of Cambridge, Cambridge, UK
| | - Jeongjae Lee
- School of Earth and Environmental Sciences, Seoul National University, Seoul, Republic of Korea
| | - James C Sadighian
- Department of Chemistry and Biochemistry, University of Oregon, Eugene, OR, USA
| | - Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche 'Giulio Natta' (CNR-SCITEC), Perugia, Italy
| | | | - Eros Radicchi
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche 'Giulio Natta' (CNR-SCITEC), Perugia, Italy.,Department of Chemistry, Biology and Biotechnology, University of Perugia, Perugia, Italy
| | - Mingyu Jeong
- Department of Energy Engineering, School of Energy and Chemical Engineering, Perovtronics Research Center, Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea
| | - Changduk Yang
- Department of Energy Engineering, School of Energy and Chemical Engineering, Perovtronics Research Center, Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea
| | - Hyosung Choi
- Department of Chemistry, Research Institute for Convergence of Basic Sciences, Research Institute for Natural Sciences, Hanyang University, Seoul, Republic of Korea
| | - Sung Heum Park
- Department of Physics, Pukyong National University, Busan, Republic of Korea
| | - Myoung Hoon Song
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea
| | - Filippo De Angelis
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche 'Giulio Natta' (CNR-SCITEC), Perugia, Italy.,Department of Chemistry, Biology and Biotechnology, University of Perugia, Perugia, Italy.,CompuNet, Istituto Italiano di Tecnologia, Genoa, Italy
| | - Cathy Y Wong
- Department of Chemistry and Biochemistry, University of Oregon, Eugene, OR, USA. .,Materials Science Institute, University of Oregon, Eugene, OR, USA. .,Oregon Center for Optical, Molecular, and Quantum Science, University of Oregon, Eugene, OR, USA.
| | | | - Bo Ram Lee
- Department of Physics, Pukyong National University, Busan, Republic of Korea.
| | - Henry J Snaith
- Clarendon Laboratory, Department of Physics, University of Oxford, Oxford, UK.
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19
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Romani L, Speltini A, Ambrosio F, Mosconi E, Profumo A, Marelli M, Margadonna S, Milella A, Fracassi F, Listorti A, De Angelis F, Malavasi L. Water-Stable DMASnBr 3 Lead-Free Perovskite for Effective Solar-Driven Photocatalysis. Angew Chem Int Ed Engl 2020; 60:3611-3618. [PMID: 33047446 DOI: 10.1002/anie.202007584] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 09/14/2020] [Indexed: 11/06/2022]
Abstract
Water-stable metal halide perovskites could foster tremendous progresses in several research fields where their superior optical properties can make differences. In this work we report clear evidence of water stability in a lead-free metal halide perovskite, namely DMASnBr3 , obtained by means of diffraction, optical and X-ray photoelectron spectroscopy. Such unprecedented water-stability has been applied to promote photocatalysis in aqueous medium, in particular by devising a novel composite material by coupling DMASnBr3 to g-C3 N4 , taking advantage from the combination of their optimal photophysical properties. The prepared composites provide an impressive hydrogen evolution rate >1700 μmol g-1 h-1 generated by the synergistic activity of the two composite costituents. DFT calculations provide insight into this enhancement deriving it from the favorable alignment of interfacial energy levels of DMASnBr3 and g-C3 N4 . The demonstration of an efficient photocatalytic activity for a composite based on lead-free metal halide perovskite in water paves the way to a new class of light-driven catalysts working in aqueous environments.
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Affiliation(s)
- Lidia Romani
- Department of Chemistry and INSTM, University of Pavia, Via Taramelli 16, 27100, Pavia, Italy
| | - Andrea Speltini
- Department of Drug Sciences, University of Pavia, Via Taramelli 12, 27100, Pavia, Italy
| | - Francesco Ambrosio
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche "Giulio Natta" (CNR-SCITEC), Via Elce di Sotto 8, 06123, Perugia, Italy.,CompuNet, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
| | - Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche "Giulio Natta" (CNR-SCITEC), Via Elce di Sotto 8, 06123, Perugia, Italy
| | - Antonella Profumo
- Department of Chemistry and INSTM, University of Pavia, Via Taramelli 16, 27100, Pavia, Italy
| | - Marcello Marelli
- National Research Council, CNR-SCITEC, Via G. Fantoli 16/15, 20138, Milan, Italy
| | - Serena Margadonna
- Materials Research Centre and SPECIFIC, College of Engineering, Swansea University, Swansea, SA1 8EN, UK
| | - Antonella Milella
- Department of Chemistry, University of Bari, Via Orabona 4, 70126, Bari, Italy
| | - Francesco Fracassi
- Department of Chemistry, University of Bari, Via Orabona 4, 70126, Bari, Italy
| | - Andrea Listorti
- Department of Chemistry, University of Bari, Via Orabona 4, 70126, Bari, Italy
| | - Filippo De Angelis
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche "Giulio Natta" (CNR-SCITEC), Via Elce di Sotto 8, 06123, Perugia, Italy.,Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123, Perugia, Italy
| | - Lorenzo Malavasi
- Department of Chemistry and INSTM, University of Pavia, Via Taramelli 16, 27100, Pavia, Italy
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20
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Romani L, Speltini A, Ambrosio F, Mosconi E, Profumo A, Marelli M, Margadonna S, Milella A, Fracassi F, Listorti A, De Angelis F, Malavasi L. Water‐Stable DMASnBr
3
Lead‐Free Perovskite for Effective Solar‐Driven Photocatalysis. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202007584] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Lidia Romani
- Department of Chemistry and INSTM University of Pavia Via Taramelli 16 27100 Pavia Italy
| | - Andrea Speltini
- Department of Drug Sciences University of Pavia Via Taramelli 12 27100 Pavia Italy
| | - Francesco Ambrosio
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO) Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta” (CNR-SCITEC) Via Elce di Sotto 8 06123 Perugia Italy
- CompuNet Istituto Italiano di Tecnologia Via Morego 30 16163 Genova Italy
| | - Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO) Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta” (CNR-SCITEC) Via Elce di Sotto 8 06123 Perugia Italy
| | - Antonella Profumo
- Department of Chemistry and INSTM University of Pavia Via Taramelli 16 27100 Pavia Italy
| | - Marcello Marelli
- National Research Council CNR-SCITEC Via G. Fantoli 16/15 20138 Milan Italy
| | - Serena Margadonna
- Materials Research Centre and SPECIFIC College of Engineering Swansea University Swansea SA1 8EN UK
| | - Antonella Milella
- Department of Chemistry University of Bari Via Orabona 4 70126 Bari Italy
| | - Francesco Fracassi
- Department of Chemistry University of Bari Via Orabona 4 70126 Bari Italy
| | - Andrea Listorti
- Department of Chemistry University of Bari Via Orabona 4 70126 Bari Italy
| | - Filippo De Angelis
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO) Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta” (CNR-SCITEC) Via Elce di Sotto 8 06123 Perugia Italy
- Department of Chemistry, Biology and Biotechnology University of Perugia Via Elce di Sotto 8 06123 Perugia Italy
| | - Lorenzo Malavasi
- Department of Chemistry and INSTM University of Pavia Via Taramelli 16 27100 Pavia Italy
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21
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Radicchi E, Ambrosio F, Mosconi E, Alasmari AA, Alasmary FAS, De Angelis F. Combined Computational and Experimental Investigation on the Nature of Hydrated Iodoplumbate Complexes: Insights into the Dual Role of Water in Perovskite Precursor Solutions. J Phys Chem B 2020; 124:11481-11490. [PMID: 33275849 PMCID: PMC7884010 DOI: 10.1021/acs.jpcb.0c08624] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
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Water
is generally considered an enemy of metal halide perovskites,
being responsible for their rapid degradation and, consequently, undermining
the long-term stability of perovskite-based solar cells. However,
beneficial effects of liquid water have been surprisingly observed,
and synthetic routes including water treatments have shown to improve
the quality of perovskite films. This suggests that the interactions
of water with perovskites and their precursors are far from being
completely understood, as water appears to play a puzzling dual role
in perovskite precursor solutions. In this context, studying the basic
interactions between perovskite precursors in the aqueous environment
can provide a deeper comprehension of this conundrum. In this context,
it is fundamental to understand how water impacts the chemistry of
iodoplumbate perovskite precursor species, PbIx2–x. Here, we investigate
the chemistry of these complexes using a combined experimental and
theoretical strategy to unveil their peculiar structural and optical
properties and eventually to assign the species present in the solution.
Our study indicates that iodide-rich iodoplumbates, which are generally
key to the formation of lead halide perovskites, are not easily formed
in aqueous solutions because of the competition between iodide and
solvent molecules in coordinating Pb2+ ions, explaining
the difficulty of depositing lead iodide perovskites from aqueous
solutions. We postulate that the beneficial effect of water when used
as an additive is then motivated by its behavior being similar to
high coordinative polar aprotic solvents usually employed as additives
in one-step perovskite depositions.
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Affiliation(s)
- Eros Radicchi
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy.,Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche "Giulio Natta" (CNR-SCITEC), Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Francesco Ambrosio
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche "Giulio Natta" (CNR-SCITEC), Via Elce di Sotto 8, 06123 Perugia, Italy.,CompuNet, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche "Giulio Natta" (CNR-SCITEC), Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Ahmed A Alasmari
- The First Industrial Institute, TVTC, 12613 Riyadh, Saudi Arabia.,Physics and Astronomy Department, College of Science, King Saud University, 12372 Riyadh, Saudi Arabia
| | - Fatmah A S Alasmary
- Chemistry Department, College of Science, King Saud University, 12372 Riyadh, Saudi Arabia
| | - Filippo De Angelis
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy.,Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche "Giulio Natta" (CNR-SCITEC), Via Elce di Sotto 8, 06123 Perugia, Italy.,CompuNet, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy.,Chemistry Department, College of Science, King Saud University, 12372 Riyadh, Saudi Arabia
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22
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Radicchi E, Kachmar A, Mosconi E, Bizzarri B, Nunzi F, De Angelis F. Structural and Optical Properties of Solvated PbI 2 in γ-Butyrolactone: Insight into the Solution Chemistry of Lead Halide Perovskite Precursors. J Phys Chem Lett 2020; 11:6139-6145. [PMID: 32645264 PMCID: PMC8009512 DOI: 10.1021/acs.jpclett.0c01890] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 07/09/2020] [Indexed: 06/11/2023]
Abstract
We employ a fine-tuned theoretical framework, combining ab initio molecular dynamics (AIMD), density functional theory (DFT), and time-dependent (TD) DFT methods, to investigate the interactions and optical properties of the iodoplumbates within the low coordinative γ-butyrolactone (GBL) solvent environment, widely employed in the perovskite synthesis. We uncover the extent of GBL coordination to PbI2 investigating its relation to the solvated PbI2 optical properties. The employed approach has been further validated by comparison with the experimental UV-vis absorption spectrum of PbI2 in GBL solvent. A comparison with other solvents, commonly employed in the perovskite synthesis, such as N,N-dimethylformamide (DMF) and dimethyl sulfoxide (DMSO) is also reported. The methodology developed in this work can be reasonably extended to the investigation of similar systems.
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Affiliation(s)
- Eros Radicchi
- Department
of Chemistry, Biology and Biotechnology, University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e
Tecnologie Chimiche “Giulio Natta” (CNR-SCITEC), via Elce di Sotto 8, 06123 Perugia, Italy
| | - Ali Kachmar
- Qatar
Environment and Energy Research Institute, Hamad Bin Khalifa University, P.O. Box
5825, Doha, Qatar
| | - Edoardo Mosconi
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e
Tecnologie Chimiche “Giulio Natta” (CNR-SCITEC), via Elce di Sotto 8, 06123 Perugia, Italy
| | - Beatrice Bizzarri
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e
Tecnologie Chimiche “Giulio Natta” (CNR-SCITEC), via Elce di Sotto 8, 06123 Perugia, Italy
| | - Francesca Nunzi
- Department
of Chemistry, Biology and Biotechnology, University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e
Tecnologie Chimiche “Giulio Natta” (CNR-SCITEC), via Elce di Sotto 8, 06123 Perugia, Italy
| | - Filippo De Angelis
- Department
of Chemistry, Biology and Biotechnology, University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy
- Computational
Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e
Tecnologie Chimiche “Giulio Natta” (CNR-SCITEC), via Elce di Sotto 8, 06123 Perugia, Italy
- CompuNet,
Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
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23
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Ricciarelli D, Mosconi E, Merabet B, Bizzarri O, De Angelis F. Electronic Properties and Carrier Trapping in Bi and Mn Co-doped CsPbCl 3 Perovskite. J Phys Chem Lett 2020; 11:5482-5489. [PMID: 32551644 PMCID: PMC8008448 DOI: 10.1021/acs.jpclett.0c01567] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 06/17/2020] [Indexed: 06/11/2023]
Abstract
Metal halide perovskites exhibit impressive optoelectronic properties with applications in solar cells and light-emitting diodes. Co-doping the high-band gap CsPbCl3 perovskite with Bi and Mn enhances both material stability and luminescence, providing emission on a wide spectral range. To discuss the role of Bi3+ and Mn2+ dopants in tuning the CsPbCl3 perovskite energy levels and their involvement in carrier trapping, we report state-of-the-art hybrid density functional theory calculations, including spin-orbit coupling. We show that co-doping the perovskite with Bi and Mn delivers essentially the sum of the electronic properties of the single dopants, with no significant interaction or the preferential mutual location of them. Furthermore, we identify the structural features and energetics of transitions of electrons trapped at Bi and holes trapped at Mn dopant ions, respectively, and discuss their possible role in determining the optical properties of the co-doped perovskite.
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Affiliation(s)
- Damiano Ricciarelli
- Department
of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
- Istituto
CNR di Scienze e Tecnologie Chimiche “Giulio Natta”
(CNR-SCITEC), Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Edoardo Mosconi
- Istituto
CNR di Scienze e Tecnologie Chimiche “Giulio Natta”
(CNR-SCITEC), Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Boualem Merabet
- Faculty
of Sciences and Technology, University of
Mustapha Stambouli, Mascara 29000, Algeria
- Laboratoire
de Physique Computationnelle des Materiaux, Faculté de Sciences
Exates, Deṕartement de Physique, Université Djillali Liabes̀, Sidi Bel Abbes̀ 22000, Algeria
| | - Olivia Bizzarri
- Istituto
CNR di Scienze e Tecnologie Chimiche “Giulio Natta”
(CNR-SCITEC), Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Filippo De Angelis
- Department
of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
- Istituto
CNR di Scienze e Tecnologie Chimiche “Giulio Natta”
(CNR-SCITEC), Via Elce di Sotto 8, 06123 Perugia, Italy
- CompuNet, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
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24
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Brauer JC, Tsokkou D, Sanchez S, Droseros N, Roose B, Mosconi E, Hua X, Stolterfoht M, Neher D, Steiner U, De Angelis F, Abate A, Banerji N. Comparing the excited-state properties of a mixed-cation–mixed-halide perovskite to methylammonium lead iodide. J Chem Phys 2020; 152:104703. [DOI: 10.1063/1.5133021] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- Jan C. Brauer
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, CH-1700 Fribourg, Switzerland
| | - Demetra Tsokkou
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, CH-1700 Fribourg, Switzerland
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland
| | - Sandy Sanchez
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, CH-1700 Fribourg, Switzerland
| | - Nikolaos Droseros
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, CH-1700 Fribourg, Switzerland
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland
| | - Bart Roose
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, CH-1700 Fribourg, Switzerland
| | - Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta” (CNR-SCITEC), Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Xiao Hua
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, CH-1700 Fribourg, Switzerland
| | - Martin Stolterfoht
- Institute of Physics and Astronomy, University of Potsdam, Karl-Liebknecht-St. 24-25, D-14476 Potsdam-Golm, Germany
| | - Dieter Neher
- Institute of Physics and Astronomy, University of Potsdam, Karl-Liebknecht-St. 24-25, D-14476 Potsdam-Golm, Germany
| | - Ullrich Steiner
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, CH-1700 Fribourg, Switzerland
| | - Filippo De Angelis
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta” (CNR-SCITEC), Via Elce di Sotto 8, 06123 Perugia, Italy
- Department of Chemistry, Biology and Biochemistry, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Antonio Abate
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, CH-1700 Fribourg, Switzerland
| | - Natalie Banerji
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, CH-1700 Fribourg, Switzerland
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland
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25
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Yang S, Chen S, Mosconi E, Fang Y, Xiao X, Wang C, Zhou Y, Yu Z, Zhao J, Gao Y, De Angelis F, Huang J. Stabilizing halide perovskite surfaces for solar cell operation with wide-bandgap lead oxysalts. Science 2020; 365:473-478. [PMID: 31371610 DOI: 10.1126/science.aax3294] [Citation(s) in RCA: 248] [Impact Index Per Article: 62.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 04/29/2019] [Accepted: 07/03/2019] [Indexed: 12/15/2022]
Abstract
We show that converting the surfaces of lead halide perovskite to water-insoluble lead (II) oxysalt through reaction with sulfate or phosphate ions can effectively stabilize the perovskite surface and bulk material. These capping lead oxysalt thin layers enhance the water resistance of the perovskite films by forming strong chemical bonds. The wide-bandgap lead oxysalt layers also reduce the defect density on the perovskite surfaces by passivating undercoordinated surface lead centers, which are defect-nucleating sites. Formation of the lead oxysalt layer increases the carrier recombination lifetime and boosts the efficiency of the solar cells to 21.1%. Encapsulated devices stabilized by the lead oxysalt layers maintain 96.8% of their initial efficiency after operation at maximum power point under simulated air mass (AM) 1.5 G irradiation for 1200 hours at 65°C.
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Affiliation(s)
- Shuang Yang
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.,Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Shangshang Chen
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-Istituto di Scienze e Tecnologie Molecolari (ISTM), Perugia, Italy
| | - Yanjun Fang
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.,Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Xun Xiao
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Congcong Wang
- Department of Physics and Astronomy, University of Rochester, Rochester, NY 14627, USA
| | - Yu Zhou
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Zhenhua Yu
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Jingjing Zhao
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.,Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Yongli Gao
- Department of Physics and Astronomy, University of Rochester, Rochester, NY 14627, USA
| | - Filippo De Angelis
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-Istituto di Scienze e Tecnologie Molecolari (ISTM), Perugia, Italy.,Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy.,D3-Computation, Istituto Italiano di Tecnologia, Genova, Italy
| | - Jinsong Huang
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA. .,Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
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26
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Proppe AH, Walters GW, Alsalloum AY, Zhumekenov AA, Mosconi E, Kelley SO, De Angelis F, Adamska L, Umari P, Bakr OM, Sargent EH. Transition Dipole Moments of n = 1, 2, and 3 Perovskite Quantum Wells from the Optical Stark Effect and Many-Body Perturbation Theory. J Phys Chem Lett 2020; 11:716-723. [PMID: 31933373 DOI: 10.1021/acs.jpclett.9b03349] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Metal halide perovskite quantum wells (PQWs) are quantum and dielectrically confined materials exhibiting strongly bound excitons. The exciton transition dipole moment dictates absorption strength and influences interwell coupling in dipole-mediated energy transfer, a process that influences the performance of PQW optoelectronic devices. Here we use transient reflectance spectroscopy with circularly polarized laser pulses to investigate the optical Stark effect in dimensionally pure single crystals of n = 1, 2, and 3 Ruddlesden-Popper PQWs. From these measurements, we extract in-plane transition dipole moments of 11.1 (±0.4), 9.6 (±0.6) and 13.0 (±0.8) D for n = 1, 2 and 3, respectively. We corroborate our experimental results with density functional and many-body perturbation theory calculations, finding that the nature of band edge orbitals and exciton wave function delocalization depends on the PQW "odd-even" symmetry. This accounts for the nonmonotonic relationship between transition dipole moment and PQW dimensionality in the n = 1-3 range.
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Affiliation(s)
- Andrew H Proppe
- Department of Chemistry , University of Toronto , 80 St. George Street , Toronto , Ontario , Canada M5S 3G4
- The Edward S. Rogers Department of Electrical and Computer Engineering , University of Toronto , 10 King's College Road , Toronto , Ontario , Canada M5S 3G4
| | - Grant W Walters
- The Edward S. Rogers Department of Electrical and Computer Engineering , University of Toronto , 10 King's College Road , Toronto , Ontario , Canada M5S 3G4
| | - Abdullah Y Alsalloum
- Division of Physical Science and Engineering , King Abdullah University of Science and Technology , Thuwal 23955-6900 , Kingdom of Saudi Arabia
| | - Ayan A Zhumekenov
- Division of Physical Science and Engineering , King Abdullah University of Science and Technology , Thuwal 23955-6900 , Kingdom of Saudi Arabia
| | - Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO) , Istituto CNR di Scienze e Tecnologie Chimiche "Giulio Natta" (CNR-SCITEC) , Via Elce di Sotto 8 , 06123 Perugia , Italy
| | - Shana O Kelley
- Department of Chemistry , University of Toronto , 80 St. George Street , Toronto , Ontario , Canada M5S 3G4
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy , University of Toronto , Toronto , Ontario , Canada M5S 3M2
| | - Filippo De Angelis
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO) , Istituto CNR di Scienze e Tecnologie Chimiche "Giulio Natta" (CNR-SCITEC) , Via Elce di Sotto 8 , 06123 Perugia , Italy
- Department of Chemistry, Biology and Biotechnology , University of Perugia , Via Elce di Sotto 8 , 06123 Perugia , Italy
| | - Lyudmyla Adamska
- Dipartimento di Fisica e Astronomia , Università di Padova , via Marzolo 8 , I-35131 Padova , Italy
| | - Paolo Umari
- Dipartimento di Fisica e Astronomia , Università di Padova , via Marzolo 8 , I-35131 Padova , Italy
- CNR-IOM DEMOCRITOS, Istituto Officina dei Materiali , Consiglio Nazionale delle Ricerche , I-34149 Trieste , Italy
| | - Osman M Bakr
- Division of Physical Science and Engineering , King Abdullah University of Science and Technology , Thuwal 23955-6900 , Kingdom of Saudi Arabia
| | - Edward H Sargent
- The Edward S. Rogers Department of Electrical and Computer Engineering , University of Toronto , 10 King's College Road , Toronto , Ontario , Canada M5S 3G4
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27
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Phung N, Félix R, Meggiolaro D, Al-Ashouri A, Sousa E Silva G, Hartmann C, Hidalgo J, Köbler H, Mosconi E, Lai B, Gunder R, Li M, Wang KL, Wang ZK, Nie K, Handick E, Wilks RG, Marquez JA, Rech B, Unold T, Correa-Baena JP, Albrecht S, De Angelis F, Bär M, Abate A. The Doping Mechanism of Halide Perovskite Unveiled by Alkaline Earth Metals. J Am Chem Soc 2020; 142:2364-2374. [PMID: 31917562 DOI: 10.1021/jacs.9b11637] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Halide perovskites are a strong candidate for the next generation of photovoltaics. Chemical doping of halide perovskites is an established strategy to prepare the highest efficiency and most stable perovskite-based solar cells. In this study, we unveil the doping mechanism of halide perovskites using a series of alkaline earth metals. We find that low doping levels enable the incorporation of the dopant within the perovskite lattice, whereas high doping concentrations induce surface segregation. The threshold from low to high doping regime correlates to the size of the doping element. We show that the low doping regime results in a more n-type material, while the high doping regime induces a less n-type doping character. Our work provides a comprehensive picture of the unique doping mechanism of halide perovskites, which differs from classical semiconductors. We proved the effectiveness of the low doping regime for the first time, demonstrating highly efficient methylammonium lead iodide based solar cells in both n-i-p and p-i-n architectures.
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Affiliation(s)
- Nga Phung
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , Hahn-Meitner-Platz 1 , 14109 Berlin , Germany
| | - Roberto Félix
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , Hahn-Meitner-Platz 1 , 14109 Berlin , Germany
| | - Daniele Meggiolaro
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO) , CNR-ISTM , Via Elce di Sotto 8 , 06123 Perugia , Italy.,D3-CompuNet , Istituto Italiano di Tecnologia , Via Morego 30 , 16163 Genova , Italy
| | - Amran Al-Ashouri
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , Hahn-Meitner-Platz 1 , 14109 Berlin , Germany
| | - Gabrielle Sousa E Silva
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , Hahn-Meitner-Platz 1 , 14109 Berlin , Germany
| | - Claudia Hartmann
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , Hahn-Meitner-Platz 1 , 14109 Berlin , Germany
| | - Juanita Hidalgo
- School of Materials Science and Engineering , Georgia Institute of Technology , North Avenue NW , Atlanta , Georgia 30332 , United States
| | - Hans Köbler
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , Hahn-Meitner-Platz 1 , 14109 Berlin , Germany
| | - Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO) , CNR-ISTM , Via Elce di Sotto 8 , 06123 Perugia , Italy.,D3-CompuNet , Istituto Italiano di Tecnologia , Via Morego 30 , 16163 Genova , Italy
| | - Barry Lai
- Advanced Photon Source , Argonne National Lab , 9700 Cass Avenue , Lemont , Illinois 60439 , United States
| | - Rene Gunder
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , Hahn-Meitner-Platz 1 , 14109 Berlin , Germany
| | - Meng Li
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , Hahn-Meitner-Platz 1 , 14109 Berlin , Germany.,Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices , Soochow University , Suzhou 215123 , PR China.,Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , PR China
| | - Kai-Li Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices , Soochow University , Suzhou 215123 , PR China
| | - Zhao-Kui Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices , Soochow University , Suzhou 215123 , PR China
| | - Kaiqi Nie
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , Hahn-Meitner-Platz 1 , 14109 Berlin , Germany.,Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices , Soochow University , Suzhou 215123 , PR China
| | - Evelyn Handick
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , Hahn-Meitner-Platz 1 , 14109 Berlin , Germany
| | - Regan G Wilks
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , Hahn-Meitner-Platz 1 , 14109 Berlin , Germany
| | - Jose A Marquez
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , Hahn-Meitner-Platz 1 , 14109 Berlin , Germany
| | - Bernd Rech
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , Hahn-Meitner-Platz 1 , 14109 Berlin , Germany.,Faculty of Electrical Engineering and Computer Science , Technical University Berlin , Marchstraße 23 , 10587 Berlin , Germany
| | - Thomas Unold
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , Hahn-Meitner-Platz 1 , 14109 Berlin , Germany
| | - Juan-Pablo Correa-Baena
- School of Materials Science and Engineering , Georgia Institute of Technology , North Avenue NW , Atlanta , Georgia 30332 , United States
| | - Steve Albrecht
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , Hahn-Meitner-Platz 1 , 14109 Berlin , Germany.,Faculty of Electrical Engineering and Computer Science , Technical University Berlin , Marchstraße 23 , 10587 Berlin , Germany
| | - Filippo De Angelis
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO) , CNR-ISTM , Via Elce di Sotto 8 , 06123 Perugia , Italy.,D3-CompuNet , Istituto Italiano di Tecnologia , Via Morego 30 , 16163 Genova , Italy.,Department of Chemistry, Biology and Biotechnology , University of Perugia , Via Elce di Sotto 8 , 06123 Perugia , Italy
| | - Marcus Bär
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , Hahn-Meitner-Platz 1 , 14109 Berlin , Germany.,Department of Chemistry and Pharmacy , Friedrich-Alexander-Universität Erlangen-Nürnberg , Egerland Str. 3 , 91058 Erlangen , Germany.,Helmholtz Institute Erlangen-Nürnberg for Renewable Energy (HI ERN) , Albert-Einstein-Str. 15 , 12489 Berlin , Germany
| | - Antonio Abate
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , Hahn-Meitner-Platz 1 , 14109 Berlin , Germany.,Department of Chemical, Materials and Production Engineering , University of Naples Federico II , Piazzale Tecchio 80 , 80125 Fuorigrotta , Italy
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28
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Coduri M, Strobel TA, Szafrański M, Katrusiak A, Mahata A, Cova F, Bonomi S, Mosconi E, De Angelis F, Malavasi L. Band Gap Engineering in MASnBr 3 and CsSnBr 3 Perovskites: Mechanistic Insights through the Application of Pressure. J Phys Chem Lett 2019; 10:7398-7405. [PMID: 31721591 DOI: 10.1021/acs.jpclett.9b03046] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Here we report on the first structural and optical high-pressure investigation of MASnBr3 (MA = [CH3NH3]+) and CsSnBr3 halide perovskites. A massive red shift of 0.4 eV for MASnBr3 and 0.2 eV for CsSnBr3 is observed within 1.3 to 1.5 GPa from absorption spectroscopy, followed by a huge blue shift of 0.3 and 0.5 eV, respectively. Synchrotron powder diffraction allowed us to correlate the upturn in the optical properties trend (onset of blue shift) with structural phase transitions from cubic to orthorhombic in MASnBr3 and from tetragonal to monoclinic for CsSnBr3. Density functional theory calculations indicate a different underlying mechanism affecting the band gap evolution with pressure, a key role of metal-halide bond lengths for CsSnBr3 and cation orientation for MASnBr3, thus showing the impact of a different A-cation on the pressure response. Finally, the investigated phases, differently from the analogous Pb-based counterparts, are robust against amorphization showing defined diffraction up to the maximum pressure used in the experiments.
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Affiliation(s)
- Mauro Coduri
- Department of Chemistry and INSTM , Viale Taramelli 16 , 27100 Pavia , Italy
| | - Timothy A Strobel
- Geophysical Laboratory , Carnegie Institution for Science , Washington , DC 20015 , United States
| | - Marek Szafrański
- Adam Mickiewicz University , Faculty of Physics , Uniwersytetu Poznańskiego 2 , 61-614 Poznań , Poland
| | - Andrzej Katrusiak
- Adam Mickiewicz University , Faculty of Chemistry , Uniwersytetu Poznańskiego 8 , 61-614 Poznań , Poland
| | - Arup Mahata
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO) , Istituto CNR di Scienze e Tecnologie Chimiche "Giulio Natta" (CNR-SCITEC) , Via Elce di Sotto 8 , 06123 Perugia , Italy
- CompuNet , Istituto Italiano di Tecnologia , Via Morego 30 , 16163 Genova , Italy
| | - Federico Cova
- ESRF - The European Synchrotron , 81, Avenue des Martyrs , 38000 Grenoble , France
| | - Sara Bonomi
- Department of Chemistry and INSTM , Viale Taramelli 16 , 27100 Pavia , Italy
| | - Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO) , Istituto CNR di Scienze e Tecnologie Chimiche "Giulio Natta" (CNR-SCITEC) , Via Elce di Sotto 8 , 06123 Perugia , Italy
| | - Filippo De Angelis
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO) , Istituto CNR di Scienze e Tecnologie Chimiche "Giulio Natta" (CNR-SCITEC) , Via Elce di Sotto 8 , 06123 Perugia , Italy
- Department of Chemistry, Biology and Biotechnology , University of Perugia , Via Elce di Sotto 8 , 06123 Perugia , Italy
| | - Lorenzo Malavasi
- Department of Chemistry and INSTM , Viale Taramelli 16 , 27100 Pavia , Italy
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29
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Campanelli M, Del Giacco T, De Angelis F, Mosconi E, Taddei M, Marmottini F, D'Amato R, Costantino F. Solvent-Free Synthetic Route for Cerium(IV) Metal-Organic Frameworks with UiO-66 Architecture and Their Photocatalytic Applications. ACS Appl Mater Interfaces 2019; 11:45031-45037. [PMID: 31702892 DOI: 10.1021/acsami.9b13730] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A near solvent-free synthetic route for Ce-UiO-66 metal-organic frameworks (MOFs) is presented. The MOFs are obtained by energetically grinding the reagents, cerium ammonium nitrate (CAN) and the carboxylic linkers, in a mortar for a few minutes with the addition of a small amount of acetic acid (AcOH) as a modulator (8.75 equiv, 0.5 mL). The slurry is then transferred into a 2 mL vial and heated at 120 °C for 1 day. The MOFs have been characterized for their composition, crystallinity, and porosity and employed as heterogeneous catalysts for the photo-oxidation reaction of substituted benzylic alcohols to benzaldaldehydes under near-ultraviolet light irradiation. The catalytic performances, such as selectivity, conversion, and kinetics, exceed those of similar systems studied by chemical oxidation using similar Ce-MOFs as a catalyst. Moreover, the MOFs were found to be reusable up to three cycles without loss of activity. Density functional theory (DFT) calculations were used to fully describe the electronic structure of the best performing MOFs and to provide useful information on the catalytic activity experimentally observed.
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Affiliation(s)
| | | | - Filippo De Angelis
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO) , Istituto CNR di Scienze e Tecnologie Molecolari (ISTM-CNR) , Via Elce di Sotto 8 , 06123 Perugia , Italy
- CompuNet , Istituto Italiano di Tecnologia , Via Morego 30 , 16163 Genova , Italy
| | - Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO) , Istituto CNR di Scienze e Tecnologie Molecolari (ISTM-CNR) , Via Elce di Sotto 8 , 06123 Perugia , Italy
| | - Marco Taddei
- Energy Safety Research Institute , Swansea University , Bay Campus, Fabian Way , Swansea SA1, 8EN , U.K
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30
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Caputo M, Cefarin N, Radivo A, Demitri N, Gigli L, Plaisier JR, Panighel M, Di Santo G, Moretti S, Giglia A, Polentarutti M, De Angelis F, Mosconi E, Umari P, Tormen M, Goldoni A. Electronic structure of MAPbI 3 and MAPbCl 3: importance of band alignment. Sci Rep 2019; 9:15159. [PMID: 31641160 PMCID: PMC6805902 DOI: 10.1038/s41598-019-50108-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 08/28/2019] [Indexed: 12/02/2022] Open
Abstract
Since their first appearance, organic-inorganic perovskite absorbers have been capturing the attention of the scientific community. While high efficiency devices highlight the importance of band level alignment, very little is known on the origin of the strong n-doping character observed in the perovskite. Here, by means of a highly accurate photoemission study, we shed light on the energy alignment in perovskite-based devices. Our results suggest that the interaction with the substrate may be the driver for the observed doping in the perovskite samples.
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Affiliation(s)
- Marco Caputo
- Elettra - Sincrotrone Trieste, s.s. 14 Km 163.5 in Area Science Park, Basovizza (Trieste) 34149, Trieste, Italy.
| | - Nicola Cefarin
- IOM-CNR Lab. TASC, s.s. 14 Km 163.5 in Area Science Park, Basovizza (Trieste) 34149, Trieste, Italy
- Dipartimento di Fisica - Università di Trieste, via Valerio Trieste, Trieste, Italy
| | - Andrea Radivo
- Elettra - Sincrotrone Trieste, s.s. 14 Km 163.5 in Area Science Park, Basovizza (Trieste) 34149, Trieste, Italy
- IOM-CNR Lab. TASC, s.s. 14 Km 163.5 in Area Science Park, Basovizza (Trieste) 34149, Trieste, Italy
| | - Nicola Demitri
- Elettra - Sincrotrone Trieste, s.s. 14 Km 163.5 in Area Science Park, Basovizza (Trieste) 34149, Trieste, Italy
| | - Lara Gigli
- Elettra - Sincrotrone Trieste, s.s. 14 Km 163.5 in Area Science Park, Basovizza (Trieste) 34149, Trieste, Italy
| | - Jasper R Plaisier
- Elettra - Sincrotrone Trieste, s.s. 14 Km 163.5 in Area Science Park, Basovizza (Trieste) 34149, Trieste, Italy
| | - Mirco Panighel
- Elettra - Sincrotrone Trieste, s.s. 14 Km 163.5 in Area Science Park, Basovizza (Trieste) 34149, Trieste, Italy
- Dipartimento di Fisica - Università di Trieste, via Valerio Trieste, Trieste, Italy
| | - Giovanni Di Santo
- Elettra - Sincrotrone Trieste, s.s. 14 Km 163.5 in Area Science Park, Basovizza (Trieste) 34149, Trieste, Italy
| | - Sacha Moretti
- CNR - Institute of Atmospheric pollution Research - Sezione di Rende - c/o Polifunzionale - UNICAL 87036 Rende (CS), Rende, Italy
| | - Angelo Giglia
- IOM-CNR Lab. TASC, s.s. 14 Km 163.5 in Area Science Park, Basovizza (Trieste) 34149, Trieste, Italy
| | - Maurizio Polentarutti
- Elettra - Sincrotrone Trieste, s.s. 14 Km 163.5 in Area Science Park, Basovizza (Trieste) 34149, Trieste, Italy
| | - Filippo De Angelis
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, Via Elce di Sotto 8, I-06123, Perugia, Italy
- CompuNet, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
| | - Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, Via Elce di Sotto 8, I-06123, Perugia, Italy
- CompuNet, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
| | - Paolo Umari
- IOM-CNR Lab. TASC, s.s. 14 Km 163.5 in Area Science Park, Basovizza (Trieste) 34149, Trieste, Italy
- Dipartimento di Fisica e Astronomia - Università di Padova, via Marzolo, 35131, Padova, Italy
| | - Massimo Tormen
- IOM-CNR Lab. TASC, s.s. 14 Km 163.5 in Area Science Park, Basovizza (Trieste) 34149, Trieste, Italy
| | - Andrea Goldoni
- Elettra - Sincrotrone Trieste, s.s. 14 Km 163.5 in Area Science Park, Basovizza (Trieste) 34149, Trieste, Italy.
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31
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Caselli V, Fischer M, Meggiolaro D, Mosconi E, De Angelis F, Stranks SD, Baumann A, Dyakonov V, Hutter EM, Savenije TJ. Charge Carriers Are Not Affected by the Relatively Slow-Rotating Methylammonium Cations in Lead Halide Perovskite Thin Films. J Phys Chem Lett 2019; 10:5128-5134. [PMID: 31398042 PMCID: PMC6734799 DOI: 10.1021/acs.jpclett.9b02160] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 08/09/2019] [Indexed: 05/22/2023]
Abstract
Recently, several studies have investigated dielectric properties as a possible origin of the exceptional optoelectronic properties of metal halide perovskites (MHPs). In this study we investigated the temperature-dependent dielectric behavior of different MHP films at different frequencies. In the gigahertz regime, dielectric losses in methylammonium-based samples are dominated by the rotational dynamics of the organic cation. Upon increasing the temperature from 160 to 300 K, the rotational relaxation time, τ, decreases from 400 (200) to 6 (1) ps for MAPb-I3 (-Br3). By contrast, we found negligible temperature-dependent variations in τ for a mixed cation/mixed halide FA0.85MA0.15Pb(I0.85Br0.15)3. From temperature-dependent time-resolved microwave conductance measurements we conclude that the dipolar reorientation of the MA cation does not affect charge carrier mobility and lifetime in MHPs. Therefore, charge carriers do not feel the relatively slow-moving MA cations, despite their great impact on the dielectric constants.
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Affiliation(s)
- Valentina
M. Caselli
- Department
of Chemical Engineering, Delft University
of Technology, 2629 HZ Delft, The Netherlands
| | - Mathias Fischer
- Experimental
Physics 6, Julius-Maximillian University
of Würzburg, Am Hubland, D-97074 Würzburg, Germany
| | - Daniele Meggiolaro
- Computational
Laboratory for Hybrid/Organic Photovoltaics, CNR-ISTM and Department
of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, I-06123, Perugia, Italy
| | - Edoardo Mosconi
- Computational
Laboratory for Hybrid/Organic Photovoltaics, CNR-ISTM and Department
of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, I-06123, Perugia, Italy
| | - Filippo De Angelis
- Computational
Laboratory for Hybrid/Organic Photovoltaics, CNR-ISTM and Department
of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, I-06123, Perugia, Italy
| | - Samuel D. Stranks
- Cavendish
Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
| | - Andreas Baumann
- Bavarian
Center for Applied Energy Research (ZAE Bayern), Magdalene-Schoch-Str. 3, D97074 Würzburg, Germany
| | - Vladimir Dyakonov
- Experimental
Physics 6, Julius-Maximillian University
of Würzburg, Am Hubland, D-97074 Würzburg, Germany
| | - Eline M. Hutter
- Department
of Chemical Engineering, Delft University
of Technology, 2629 HZ Delft, The Netherlands
- Center for
Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
- E-mail:
| | - Tom J. Savenije
- Department
of Chemical Engineering, Delft University
of Technology, 2629 HZ Delft, The Netherlands
- E-mail:
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32
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Spadotto V, Zuin G, Mosconi E, Cutolo A, Grolla E, Ossena G, Cutaia V, Silvano M, Ronco F, Caprioglio F, Rigo F. P589A not so simple pericarditis. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez108.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- V Spadotto
- Hospital dellAngelo, Mestre-Venice, Italy
| | - G Zuin
- Hospital dellAngelo, Mestre-Venice, Italy
| | - E Mosconi
- Hospital dellAngelo, Mestre-Venice, Italy
| | - A Cutolo
- Hospital dellAngelo, Mestre-Venice, Italy
| | - E Grolla
- Hospital dellAngelo, Mestre-Venice, Italy
| | - G Ossena
- Hospital dellAngelo, Mestre-Venice, Italy
| | - V Cutaia
- Hospital dellAngelo, Mestre-Venice, Italy
| | - M Silvano
- Hospital dellAngelo, Mestre-Venice, Italy
| | - F Ronco
- Hospital dellAngelo, Mestre-Venice, Italy
| | | | - F Rigo
- Hospital dellAngelo, Mestre-Venice, Italy
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33
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Xu N, Li Y, Ricciarelli D, Wang J, Mosconi E, Yuan Y, De Angelis F, Zakeeruddin SM, Grätzel M, Wang P. An Oxa[5]helicene-Based Racemic Semiconducting Glassy Film for Photothermally Stable Perovskite Solar Cells. iScience 2019; 15:234-242. [PMID: 31079027 PMCID: PMC6517259 DOI: 10.1016/j.isci.2019.04.031] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 04/04/2019] [Accepted: 04/22/2019] [Indexed: 01/08/2023] Open
Abstract
Attaining the durability of high-efficiency perovskite solar cells (PSCs) operated under concomitant light and thermal stresses is still a serious concern before large-scale application. It is crucial to maintain the phase stability of the organic hole-transporting layer for thermostable PSCs across a range of temperatures sampled during device operation. To address this issue, we propose a racemic semiconducting glassy film with remarkable morphological stability, exemplified here by a low-molecular symmetry oxa[5]helicene-centered organic semiconductor (O5H-OMeDPA). The helical configuration of O5H-OMeDPA confers the trait of multiple-dimension charge transfer to the solid, resulting in high hole mobility of 6.7 × 10-4 cm2 V-1 s-1 of a solution-processed glassy film. O5H-OMeDPA is combined with a triple-cation dual-halide lead perovskite to fabricate PSCs with power conversion efficiencies of 21.03%, outperforming the control cells with spiro-OMeTAD (20.44%). Moreover, the cells using O5H-OMeDPA exhibit good long-term stability during full-sunlight soaking at 60°C.
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Affiliation(s)
- Niansheng Xu
- Department of Chemistry, Zhejiang University, Hangzhou 310028, China
| | - Yang Li
- Department of Chemistry, Zhejiang University, Hangzhou 310028, China; Laboratory of Photonics and Interfaces, Institute of Chemical Sciences & Engineering, École Polytechnique Fédérale de Lausanne, Lausanne 1015, Switzerland
| | - Damiano Ricciarelli
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy; Computational Laboratory for Hybrid/Organic Photovoltaics, CNR-ISTM, Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Jianan Wang
- Department of Chemistry, Zhejiang University, Hangzhou 310028, China
| | - Edoardo Mosconi
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Yi Yuan
- Department of Chemistry, Zhejiang University, Hangzhou 310028, China
| | - Filippo De Angelis
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy; Computational Laboratory for Hybrid/Organic Photovoltaics, CNR-ISTM, Via Elce di Sotto 8, 06123 Perugia, Italy; D3-Computation, Istituto Italiano di Tecnologia, Via Morego, Genova, Italy.
| | - Shaik M Zakeeruddin
- Laboratory of Photonics and Interfaces, Institute of Chemical Sciences & Engineering, École Polytechnique Fédérale de Lausanne, Lausanne 1015, Switzerland
| | - Michael Grätzel
- Laboratory of Photonics and Interfaces, Institute of Chemical Sciences & Engineering, École Polytechnique Fédérale de Lausanne, Lausanne 1015, Switzerland
| | - Peng Wang
- Department of Chemistry, Zhejiang University, Hangzhou 310028, China.
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34
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Chen B, Li T, Dong Q, Mosconi E, Song J, Chen Z, Deng Y, Liu Y, Ducharme S, Gruverman A, De Angelis F, Huang J. Publisher Correction: Large electrostrictive response in lead halide perovskites. Nat Mater 2018; 17:1164. [PMID: 30315212 DOI: 10.1038/s41563-018-0216-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In the version of this Article originally published, the y axis of Fig. 1c was incorrectly labelled 'S (%)'; it should have been '-S (%)'. Also, the link for the Supplementary Video was missing from the online version of the Article. These errors have now been corrected.
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Affiliation(s)
- Bo Chen
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Tao Li
- Department of Physics and Astronomy, and Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Qingfeng Dong
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, Perugia, Italy
- D3-Computation, Istituto Italiano di Tecnologia, Genova, Italy
| | - Jingfeng Song
- Department of Physics and Astronomy, and Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Zhaolai Chen
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Yehao Deng
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Ye Liu
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Stephen Ducharme
- Department of Physics and Astronomy, and Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Alexei Gruverman
- Department of Physics and Astronomy, and Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Filippo De Angelis
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, Perugia, Italy.
- D3-Computation, Istituto Italiano di Tecnologia, Genova, Italy.
| | - Jinsong Huang
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, USA.
- Department of Applied Physical Sciences, University of North Carolina, Chapel Hill, NC, USA.
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35
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John RA, Yantara N, Ng YF, Narasimman G, Mosconi E, Meggiolaro D, Kulkarni MR, Gopalakrishnan PK, Nguyen CA, De Angelis F, Mhaisalkar SG, Basu A, Mathews N. Ionotronic Halide Perovskite Drift-Diffusive Synapses for Low-Power Neuromorphic Computation. Adv Mater 2018; 30:e1805454. [PMID: 30334296 DOI: 10.1002/adma.201805454] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 09/19/2018] [Indexed: 05/08/2023]
Abstract
Emulation of brain-like signal processing is the foundation for development of efficient learning circuitry, but few devices offer the tunable conductance range necessary for mimicking spatiotemporal plasticity in biological synapses. An ionic semiconductor which couples electronic transitions with drift-diffusive ionic kinetics would enable energy-efficient analog-like switching of metastable conductance states. Here, ionic-electronic coupling in halide perovskite semiconductors is utilized to create memristive synapses with a dynamic continuous transition of conductance states. Coexistence of carrier injection barriers and ion migration in the perovskite films defines the degree of synaptic plasticity, more notable for the larger organic ammonium and formamidinium cations than the inorganic cesium counterpart. Optimized pulsing schemes facilitates a balanced interplay of short- and long-term plasticity rules like paired-pulse facilitation and spike-time-dependent plasticity, cardinal for learning and computing. Trained as a memory array, halide perovskite synapses demonstrate reconfigurability, learning, forgetting, and fault tolerance analogous to the human brain. Network-level simulations of unsupervised learning of handwritten digit images utilizing experimentally derived device parameters, validates the utility of these memristors for energy-efficient neuromorphic computation, paving way for novel ionotronic neuromorphic architectures with halide perovskites as the active material.
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Affiliation(s)
- Rohit Abraham John
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Natalia Yantara
- Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, 50 Nanyang Drive, Singapore, 637553, Singapore
| | - Yan Fong Ng
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
- Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, 50 Nanyang Drive, Singapore, 637553, Singapore
| | - Govind Narasimman
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, Via Elce di Sotto 8, I-06123, Perugia, Italy
- D3-Computation, Istituto Italiano di Tecnologia, Via Morego 30, I-16163, Genova, Italy
| | - Daniele Meggiolaro
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, Via Elce di Sotto 8, I-06123, Perugia, Italy
- D3-Computation, Istituto Italiano di Tecnologia, Via Morego 30, I-16163, Genova, Italy
| | - Mohit R Kulkarni
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Pradeep Kumar Gopalakrishnan
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Chien A Nguyen
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Filippo De Angelis
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, Via Elce di Sotto 8, I-06123, Perugia, Italy
- D3-Computation, Istituto Italiano di Tecnologia, Via Morego 30, I-16163, Genova, Italy
| | - Subodh G Mhaisalkar
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
- Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, 50 Nanyang Drive, Singapore, 637553, Singapore
| | - Arindam Basu
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Nripan Mathews
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
- Energy Research Institute @ NTU (ERI@N), Nanyang Technological University, 50 Nanyang Drive, Singapore, 637553, Singapore
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36
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Chen B, Li T, Dong Q, Mosconi E, Song J, Chen Z, Deng Y, Liu Y, Ducharme S, Gruverman A, Angelis FD, Huang J. Large electrostrictive response in lead halide perovskites. Nat Mater 2018; 17:1020-1026. [PMID: 30250177 DOI: 10.1038/s41563-018-0170-x] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Accepted: 08/16/2018] [Indexed: 05/13/2023]
Abstract
Lead halide perovskites have demonstrated outstanding performance in photovoltaics, photodetectors, radiation detectors and light-emitting diodes. However, the electromechanical properties, which are the main application of inorganic perovskites, have rarely been explored for lead halide perovskites. Here, we report the discovery of a large electrostrictive response in methylammonium lead triiodide (MAPbI3) single crystals. Under an electric field of 3.7 V µm-1, MAPbI3 shows a large compressive strain of 1%, corresponding to a mechanical energy density of 0.74 J cm-3, comparable to that of human muscles. The influences of piezoelectricity, thermal expansion, intrinsic electrostrictive effect, Maxwell stress, ferroelectricity, local polar fluctuation and methylammonium cation ordering on this electromechanical response are excluded. We speculate, using density functional theory, that electrostriction of MAPbI3 probably originates from lattice deformation due to formation of additional defects under applied bias. The discovery of large electrostriction in lead iodide perovskites may lead to new potential applications in actuators, sonar and micro-electromechanical systems and aid the understanding of other field-dependent material properties.
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Affiliation(s)
- Bo Chen
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Tao Li
- Department of Physics and Astronomy, and Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Qingfeng Dong
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, Perugia, Italy
- D3-Computation, Istituto Italiano di Tecnologia, Genova, Italy
| | - Jingfeng Song
- Department of Physics and Astronomy, and Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Zhaolai Chen
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Yehao Deng
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Ye Liu
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Stephen Ducharme
- Department of Physics and Astronomy, and Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Alexei Gruverman
- Department of Physics and Astronomy, and Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Filippo De Angelis
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, Perugia, Italy.
- D3-Computation, Istituto Italiano di Tecnologia, Genova, Italy.
| | - Jinsong Huang
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, USA.
- Department of Applied Physical Sciences, University of North Carolina, Chapel Hill, NC, USA.
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37
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Abstract
The performance of lead-halide perovskites in optoelectronic devices is due to a unique combination of factors, including highly efficient generation, transport, and collection of photogenerated charge carriers. The mechanism behind efficient charge generation in lead-halide perovskites is still largely unknown. Here, we investigate the factors that influence the exciton binding energy (Eb) in a series of metal-halide perovskites using accurate first-principles calculations based on solution of the Bethe-Salpeter equation, coupled to ab initio molecular dynamics simulations. We find that Eb is strongly modulated by screening from low-energy phonons, which account for a factor ∼2 Eb reduction, while dynamic disorder and rotational motion of the organic cations play a minor role. We calculate Eb = 15 meV for MAPbI3, in excellent agreement with recent experimental estimates. We then explore how different material combinations (e.g., replacing Pb → Pb:Sn→ Sn; and MA → FA → Cs) may lead to different Eb values and highlight the mechanisms underlying Eb tuning.
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Affiliation(s)
- Paolo Umari
- Dipartimento di Fisica e Astronomia, Università di Padova , via Marzolo 8, I-35131 Padova, Italy
- CNR-IOM DEMOCRITOS, Istituto Officina dei Materiali, Consiglio Nazionale delle Ricerche I-34149 Trieste, Italy
| | - Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM , via Elce di Sotto 8, I-06123, Perugia, Italy
- Consortium for Computational Molecular and Materials Sciences (CMS)2 , Via Elce di Sotto, 8, I-06123, Perugia, Italy
| | - Filippo De Angelis
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM , via Elce di Sotto 8, I-06123, Perugia, Italy
- D3-Computation, Italian Institute of Technology , Via Morego 30, I-16163 Genova, Italy
- Consortium for Computational Molecular and Materials Sciences (CMS)2 , Via Elce di Sotto, 8, I-06123, Perugia, Italy
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38
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Cruciani G, Milani N, Benedetti P, Lepri S, Cesarini L, Baroni M, Spyrakis F, Tortorella S, Mosconi E, Goracci L. From Experiments to a Fast Easy-to-Use Computational Methodology to Predict Human Aldehyde Oxidase Selectivity and Metabolic Reactions. J Med Chem 2017; 61:360-371. [DOI: 10.1021/acs.jmedchem.7b01552] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gabriele Cruciani
- Department
of Chemistry, Biology and Biotechnology, University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy
- Consortium for Computational Molecular and Materials Sciences (CMS), via Elce di Sotto 8, 06123 Perugia, Italy
| | - Nicolò Milani
- Department
of Chemistry, Biology and Biotechnology, University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy
| | - Paolo Benedetti
- Department
of Chemistry, Biology and Biotechnology, University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy
- Consortium for Computational Molecular and Materials Sciences (CMS), via Elce di Sotto 8, 06123 Perugia, Italy
| | - Susan Lepri
- Department
of Chemistry, Biology and Biotechnology, University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy
| | - Lucia Cesarini
- Department
of Chemistry, Biology and Biotechnology, University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy
| | - Massimo Baroni
- Molecular Discovery Ltd, Centennial
Park, Borehamwood, Hertfordshire, United Kingdom
| | - Francesca Spyrakis
- Department
of Drug Science and Technology, University of Turin, via P. Giuria
9, 10125 Turin, Italy
| | - Sara Tortorella
- Consortium for Computational Molecular and Materials Sciences (CMS), via Elce di Sotto 8, 06123 Perugia, Italy
- Molecular Horizon srl, via Montelino
32, 06084 Bettona, Italy
| | - Edoardo Mosconi
- Consortium for Computational Molecular and Materials Sciences (CMS), via Elce di Sotto 8, 06123 Perugia, Italy
- Computational
Laboratory for Hybrid/Organic Photovoltaics, National Research Council−Institute of Molecular Science and Technologies, Via Elce
di Sotto 8, I-06123 Perugia, Italy
| | - Laura Goracci
- Department
of Chemistry, Biology and Biotechnology, University of Perugia, via Elce di Sotto 8, 06123 Perugia, Italy
- Consortium for Computational Molecular and Materials Sciences (CMS), via Elce di Sotto 8, 06123 Perugia, Italy
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39
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Gholipour S, Ali AM, Correa-Baena JP, Turren-Cruz SH, Tajabadi F, Tress W, Taghavinia N, Grätzel M, Abate A, De Angelis F, Gaggioli CA, Mosconi E, Hagfeldt A, Saliba M. Globularity-Selected Large Molecules for a New Generation of Multication Perovskites. Adv Mater 2017; 29:1702005. [PMID: 28833614 DOI: 10.1002/adma.201702005] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 07/17/2017] [Indexed: 05/25/2023]
Abstract
Perovskite solar cells (PSCs) use perovskites with an APbX3 structure, where A is a monovalent cation and X is a halide such as Cl, Br, and/or I. Currently, the cations for high-efficiency PSCs are Rb, Cs, methylammonium (MA), and/or formamidinium (FA). Molecules larger than FA, such as ethylammonium (EA), guanidinium (GA), and imidazolium (IA), are usually incompatible with photoactive "black"-phase perovskites. Here, novel molecular descriptors for larger molecular cations are introduced using a "globularity factor", i.e., the discrepancy of the molecular shape and an ideal sphere. These cationic radii differ significantly from previous reports, showing that especially ethylammonium (EA) is only slightly larger than FA. This makes EA a suitable candidate for multication 3D perovskites that have potential for unexpected and beneficial properties (suppressing halide segregation, stability). This approach is tested experimentally showing that surprisingly large quantities of EA get incorporated, in contrast to most previous reports where only small quantities of larger molecular cations can be tolerated as "additives". MA/EA perovskites are characterized experimentally with a band gap ranging from 1.59 to 2.78 eV, demonstrating some of the most blue-shifted PSCs reported to date. Furthermore, one of the compositions, MA0.5 EA0.5 PbBr3 , shows an open circuit voltage of 1.58 V, which is the highest to date with a conventional PSC architecture.
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Affiliation(s)
- Somayeh Gholipour
- École Polytechnique Fédérale de Lausanne, Laboratory of Photomolecular Science, Station 6, CH-1015, Lausanne, Switzerland
- Department of Physics, Alzahra University, Tehran, 1993891176, Iran
| | | | - Juan-Pablo Correa-Baena
- École Polytechnique Fédérale de Lausanne, Laboratory of Photomolecular Science, Station 6, CH-1015, Lausanne, Switzerland
| | - Silver-Hamill Turren-Cruz
- Benemérita Universidad Autónoma de Puebla, CIDS, Av. San Claudio y 18 Sur, Col. San Manuel, Ciudad Universitaria, CP 72570, P.O. Box 1067, Puebla, Pue., 7200, Mexico
| | - Fariba Tajabadi
- Department of Nanotechnology and Advanced Materials, Materials and Energy Research Centre, Karaj, 31787-316, Iran
| | - Wolfgang Tress
- École Polytechnique Fédérale de Lausanne, Laboratory for Photonics and Interfaces, 1015 Lausanne, Switzerland
| | - Nima Taghavinia
- Department of Physics, Sharif University of Technology, Tehran, 14588, Iran
- Institute for Nanoscience and Nanotechnology, Sharif University of Technology, Tehran, 14588, Iran
| | - Michael Grätzel
- École Polytechnique Fédérale de Lausanne, Laboratory for Photonics and Interfaces, 1015 Lausanne, Switzerland
| | - Antonio Abate
- École Polytechnique Fédérale de Lausanne, Laboratory for Photonics and Interfaces, 1015 Lausanne, Switzerland
- Adolphe-Merkle-Institute, University of Fribourg Ch. du. Musée 3, CH-1700, Fribourg, Switzerland
| | - Filippo De Angelis
- Computational Laboratory of Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, via Elce di Sotto 8, I-06123, Perugia, Italy
- CompuNet, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
| | - Carlo Alberto Gaggioli
- Computational Laboratory of Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, via Elce di Sotto 8, I-06123, Perugia, Italy
- CompuNet, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
| | - Edoardo Mosconi
- Computational Laboratory of Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, via Elce di Sotto 8, I-06123, Perugia, Italy
- CompuNet, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
| | - Anders Hagfeldt
- École Polytechnique Fédérale de Lausanne, Laboratory of Photomolecular Science, Station 6, CH-1015, Lausanne, Switzerland
| | - Michael Saliba
- École Polytechnique Fédérale de Lausanne, Laboratory for Photonics and Interfaces, 1015 Lausanne, Switzerland
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40
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Miyata K, Meggiolaro D, Trinh MT, Joshi PP, Mosconi E, Jones SC, De Angelis F, Zhu XY. Large polarons in lead halide perovskites. Sci Adv 2017; 3:e1701217. [PMID: 28819647 PMCID: PMC5553817 DOI: 10.1126/sciadv.1701217] [Citation(s) in RCA: 245] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Accepted: 07/12/2017] [Indexed: 05/19/2023]
Abstract
Lead halide perovskites show marked defect tolerance responsible for their excellent optoelectronic properties. These properties might be explained by the formation of large polarons, but how they are formed and whether organic cations are essential remain open questions. We provide a direct time domain view of large polaron formation in single-crystal lead bromide perovskites CH3NH3PbBr3 and CsPbBr3. We found that large polaron forms predominantly from the deformation of the PbBr3- frameworks, irrespective of the cation type. The difference lies in the polaron formation time, which, in CH3NH3PbBr3 (0.3 ps), is less than half of that in CsPbBr3 (0.7 ps). First-principles calculations confirm large polaron formation, identify the Pb-Br-Pb deformation modes as responsible, and explain quantitatively the rate difference between CH3NH3PbBr3 and CsPbBr3. The findings reveal the general advantage of the soft [PbX3]- sublattice in charge carrier protection and suggest that there is likely no mechanistic limitations in using all-inorganic or mixed-cation lead halide perovskites to overcome instability problems and to tune the balance between charge carrier protection and mobility.
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Affiliation(s)
- Kiyoshi Miyata
- Department of Chemistry, Columbia University, New York, NY 10027, USA
| | - Daniele Meggiolaro
- Computational Laboratory for Hybrid/Organic Photovoltaics, National Research Council–Institute of Molecular Science and Technologies, Via Elce di Sotto 8, I-06123 Perugia, Italy
- D3-CompuNet, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - M. Tuan Trinh
- Department of Chemistry, Columbia University, New York, NY 10027, USA
| | - Prakriti P. Joshi
- Department of Chemistry, Columbia University, New York, NY 10027, USA
| | - Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics, National Research Council–Institute of Molecular Science and Technologies, Via Elce di Sotto 8, I-06123 Perugia, Italy
- D3-CompuNet, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Skyler C. Jones
- Department of Chemistry, Columbia University, New York, NY 10027, USA
| | - Filippo De Angelis
- Computational Laboratory for Hybrid/Organic Photovoltaics, National Research Council–Institute of Molecular Science and Technologies, Via Elce di Sotto 8, I-06123 Perugia, Italy
- D3-CompuNet, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- Corresponding author. (X.-Y.Z.); (F.D.A.)
| | - X.-Y. Zhu
- Department of Chemistry, Columbia University, New York, NY 10027, USA
- Corresponding author. (X.-Y.Z.); (F.D.A.)
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41
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Pastore M, Assfeld X, Mosconi E, Monari A, Etienne T. Unveiling the nature of post-linear response Z-vector method for time-dependent density functional theory. J Chem Phys 2017; 147:024108. [DOI: 10.1063/1.4991561] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
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42
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Grancini G, Roldán-Carmona C, Zimmermann I, Mosconi E, Lee X, Martineau D, Narbey S, Oswald F, De Angelis F, Graetzel M, Nazeeruddin MK. One-Year stable perovskite solar cells by 2D/3D interface engineering. Nat Commun 2017; 8:15684. [PMID: 28569749 PMCID: PMC5461484 DOI: 10.1038/ncomms15684] [Citation(s) in RCA: 502] [Impact Index Per Article: 71.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 04/20/2017] [Indexed: 01/20/2023] Open
Abstract
Despite the impressive photovoltaic performances with power conversion efficiency beyond 22%, perovskite solar cells are poorly stable under operation, failing by far the market requirements. Various technological approaches have been proposed to overcome the instability problem, which, while delivering appreciable incremental improvements, are still far from a market-proof solution. Here we show one-year stable perovskite devices by engineering an ultra-stable 2D/3D (HOOC(CH2)4NH3)2PbI4/CH3NH3PbI3 perovskite junction. The 2D/3D forms an exceptional gradually-organized multi-dimensional interface that yields up to 12.9% efficiency in a carbon-based architecture, and 14.6% in standard mesoporous solar cells. To demonstrate the up-scale potential of our technology, we fabricate 10 × 10 cm2 solar modules by a fully printable industrial-scale process, delivering 11.2% efficiency stable for >10,000 h with zero loss in performances measured under controlled standard conditions. This innovative stable and low-cost architecture will enable the timely commercialization of perovskite solar cells. Up-scaling represents a key challenge for photovoltaics based on metal halide perovskites. Using a composite of 2D and 3D perovskites in combination with a printable carbon black/graphite counter electrode; Grancini et al., report 11.2% efficient modules stable over 10,000 hours.
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Affiliation(s)
- G Grancini
- Group for Molecular Engineering of Functional Materials, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, Sion CH-1951, Switzerland
| | - C Roldán-Carmona
- Group for Molecular Engineering of Functional Materials, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, Sion CH-1951, Switzerland
| | - I Zimmermann
- Group for Molecular Engineering of Functional Materials, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, Sion CH-1951, Switzerland
| | - E Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, Via Elce di Sotto 8, Perugia I-06123, Italy.,Computet, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - X Lee
- Laboratory for Photonics and Interfaces (LPI), Institute of Chemical Sciences and Engineering, Swiss Federal Institute of Technology, Lausanne CH-1015, Switzerland
| | - D Martineau
- Solaronix S.A. Rue de l'Ouriette 129, Aubonne 1170, Switzerland
| | - S Narbey
- Solaronix S.A. Rue de l'Ouriette 129, Aubonne 1170, Switzerland
| | - F Oswald
- Solaronix S.A. Rue de l'Ouriette 129, Aubonne 1170, Switzerland
| | - F De Angelis
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, Via Elce di Sotto 8, Perugia I-06123, Italy.,Computet, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - M Graetzel
- Laboratory for Photonics and Interfaces (LPI), Institute of Chemical Sciences and Engineering, Swiss Federal Institute of Technology, Lausanne CH-1015, Switzerland
| | - Mohammad Khaja Nazeeruddin
- Group for Molecular Engineering of Functional Materials, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, Sion CH-1951, Switzerland
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43
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Abstract
A Rashba/Dresselhaus band splitting has been recently measured in organohalide perovskites and invoked in various experiments as a possible cause for the reduced electron-hole recombination rates observed in this class of materials. In this Perspective, we discuss the interplay of electronic and nuclear degrees of freedom in defining such an effect in realistic methylammonium lead iodide (MAPbI3) models. We distinguish between bulk and surface effects and find that, while a spatially local (in time and space) effect may be at work in the bulk, a "static" band-splitting effect is found at surfaces due to structural distortion. The proposed surface effect is consistent with the low surface recombination reported for MAPbI3 single crystals and might contribute to the success of organohalide perovskites.
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Affiliation(s)
- Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, via Elce di Sotto, I-06123, Perugia, Italy
- CompuNet, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Thibaud Etienne
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, via Elce di Sotto, I-06123, Perugia, Italy
- Institut Charles Gerhardt - CNRS and Université de Montpellier, Place Eugène Bataillon, 34095 Montpellier, France
| | - Filippo De Angelis
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, via Elce di Sotto, I-06123, Perugia, Italy
- CompuNet, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
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44
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Akkerman QA, Park S, Radicchi E, Nunzi F, Mosconi E, De Angelis F, Brescia R, Rastogi P, Prato M, Manna L. Nearly Monodisperse Insulator Cs 4PbX 6 (X = Cl, Br, I) Nanocrystals, Their Mixed Halide Compositions, and Their Transformation into CsPbX 3 Nanocrystals. Nano Lett 2017; 17:1924-1930. [PMID: 28196323 PMCID: PMC5345893 DOI: 10.1021/acs.nanolett.6b05262] [Citation(s) in RCA: 230] [Impact Index Per Article: 32.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
We have developed a colloidal synthesis of nearly monodisperse nanocrystals of pure Cs4PbX6 (X = Cl, Br, I) and their mixed halide compositions with sizes ranging from 9 to 37 nm. The optical absorption spectra of these nanocrystals display a sharp, high energy peak due to transitions between states localized in individual PbX64- octahedra. These spectral features are insensitive to the size of the particles and in agreement with the features of the corresponding bulk materials. Samples with mixed halide composition exhibit absorption bands that are intermediate in spectral position between those of the pure halide compounds. Furthermore, the absorption bands of intermediate compositions broaden due to the different possible combinations of halide coordination around the Pb2+ ions. Both observations are supportive of the fact that the [PbX6]4- octahedra are electronically decoupled in these systems. Because of the large band gap of Cs4PbX6 (>3.2 eV), no excitonic emission in the visible range was observed. The Cs4PbBr6 nanocrystals can be converted into green fluorescent CsPbBr3 nanocrystals by their reaction with an excess of PbBr2 with preservation of size and size distributions. The insertion of PbX2 into Cs4PbX6 provides a means of accessing CsPbX3 nanocrystals in a wide variety of sizes, shapes, and compositions, an important aspect for the development of precisely tuned perovskite nanocrystal inks.
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Affiliation(s)
- Quinten A. Akkerman
- Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, Via Dodecaneso, 31, 16146, Genova, Italy
| | - Sungwook Park
- Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- Department of Physics, Pukyong National
University, Busan 608-737, Korea
| | - Eros Radicchi
- Computational
Laboratory of Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, via Elce di
Sotto 8, I-06123 Perugia, Italy
- Dipartimento di Chimica,
Biologia e Biotecnologie, Università
degli Studi di Perugia, via Elce di Sotto 8, I-06123 Perugia, Italy
| | - Francesca Nunzi
- Computational
Laboratory of Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, via Elce di
Sotto 8, I-06123 Perugia, Italy
- Dipartimento di Chimica,
Biologia e Biotecnologie, Università
degli Studi di Perugia, via Elce di Sotto 8, I-06123 Perugia, Italy
| | - Edoardo Mosconi
- Computational
Laboratory of Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, via Elce di
Sotto 8, I-06123 Perugia, Italy
- CompuNet, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Filippo De Angelis
- Computational
Laboratory of Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, via Elce di
Sotto 8, I-06123 Perugia, Italy
- CompuNet, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Rosaria Brescia
- Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Prachi Rastogi
- Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, Via Dodecaneso, 31, 16146, Genova, Italy
| | - Mirko Prato
- Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- E-mail:
| | - Liberato Manna
- Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- E-mail:
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45
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Cortecchia D, Neutzner S, Srimath Kandada AR, Mosconi E, Meggiolaro D, De Angelis F, Soci C, Petrozza A. Broadband Emission in Two-Dimensional Hybrid Perovskites: The Role of Structural Deformation. J Am Chem Soc 2016; 139:39-42. [DOI: 10.1021/jacs.6b10390] [Citation(s) in RCA: 264] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Daniele Cortecchia
- Interdisciplinary
Graduate School, Energy Research Institute @ NTU(ERI@N), Nanyang Technological University, 639798 Singapore
- Centre
for Nano Science and Technology (CNST@PoliMi), Istituto Italiano di Tecnologia, via Pascoli 70/3, Milan 20133, Italy
| | - Stefanie Neutzner
- Centre
for Nano Science and Technology (CNST@PoliMi), Istituto Italiano di Tecnologia, via Pascoli 70/3, Milan 20133, Italy
| | - Ajay Ram Srimath Kandada
- Centre
for Nano Science and Technology (CNST@PoliMi), Istituto Italiano di Tecnologia, via Pascoli 70/3, Milan 20133, Italy
| | - Edoardo Mosconi
- Istituto
CNR di Scienze e Tecnologie Molecolari, c/o Dipartimento di Chimica, Università di Perugia, Perugia I-06123, Italy
- CompuNet, Istituto Italiano di Tecnologia, Via Morego
30, 16163 Genova, Italy
| | - Daniele Meggiolaro
- Istituto
CNR di Scienze e Tecnologie Molecolari, c/o Dipartimento di Chimica, Università di Perugia, Perugia I-06123, Italy
- CompuNet, Istituto Italiano di Tecnologia, Via Morego
30, 16163 Genova, Italy
| | - Filippo De Angelis
- Istituto
CNR di Scienze e Tecnologie Molecolari, c/o Dipartimento di Chimica, Università di Perugia, Perugia I-06123, Italy
- CompuNet, Istituto Italiano di Tecnologia, Via Morego
30, 16163 Genova, Italy
| | - Cesare Soci
- Division
of Physics and Applied Physics, School of Physical and Mathematical
Sciences, Nanyang Technological University, 637371 Singapore
| | - Annamaria Petrozza
- Centre
for Nano Science and Technology (CNST@PoliMi), Istituto Italiano di Tecnologia, via Pascoli 70/3, Milan 20133, Italy
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46
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Gratia P, Grancini G, Audinot JN, Jeanbourquin X, Mosconi E, Zimmermann I, Dowsett D, Lee Y, Grätzel M, De Angelis F, Sivula K, Wirtz T, Nazeeruddin MK. Intrinsic Halide Segregation at Nanometer Scale Determines the High Efficiency of Mixed Cation/Mixed Halide Perovskite Solar Cells. J Am Chem Soc 2016; 138:15821-15824. [DOI: 10.1021/jacs.6b10049] [Citation(s) in RCA: 145] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Paul Gratia
- Group
for Molecular Engineering of Functional Materials (GMF), Institute
of Chemical Sciences and Engineering, Swiss Federal Institute of Technology, CH-1951 Sion, Switzerland
| | - Giulia Grancini
- Group
for Molecular Engineering of Functional Materials (GMF), Institute
of Chemical Sciences and Engineering, Swiss Federal Institute of Technology, CH-1951 Sion, Switzerland
| | - Jean-Nicolas Audinot
- Advanced
Instrumentation for Ion Nano-Analytics (AINA), Materials Research
and Technology Department, Luxembourg Institute of Science and Technology (LIST), L-4422 Belvaux, Luxembourg
| | - Xavier Jeanbourquin
- Molecular
Engineering of Optoelectronic Nanomaterials Lab (LIMNO), Swiss Federal Institute of Technology, CH 1015 Lausanne, Switzerland
| | - Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, Via Elce di Sotto 8, I-06123 Perugia, Italy
| | - Iwan Zimmermann
- Group
for Molecular Engineering of Functional Materials (GMF), Institute
of Chemical Sciences and Engineering, Swiss Federal Institute of Technology, CH-1951 Sion, Switzerland
| | - David Dowsett
- Advanced
Instrumentation for Ion Nano-Analytics (AINA), Materials Research
and Technology Department, Luxembourg Institute of Science and Technology (LIST), L-4422 Belvaux, Luxembourg
| | - Yonghui Lee
- Group
for Molecular Engineering of Functional Materials (GMF), Institute
of Chemical Sciences and Engineering, Swiss Federal Institute of Technology, CH-1951 Sion, Switzerland
| | - Michael Grätzel
- Laboratory
for Photonics and Interfaces (LPI), Institute of Chemical Sciences
and Engineering, Swiss Federal Institute of Technology, CH-1015 Lausanne, Switzerland
| | - Filippo De Angelis
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, Via Elce di Sotto 8, I-06123 Perugia, Italy
- Computet, Istituto Italiano di Tecnologia, Via Morego 30, I-16163 Genova, Italy
| | - Kevin Sivula
- Molecular
Engineering of Optoelectronic Nanomaterials Lab (LIMNO), Swiss Federal Institute of Technology, CH 1015 Lausanne, Switzerland
| | - Tom Wirtz
- Advanced
Instrumentation for Ion Nano-Analytics (AINA), Materials Research
and Technology Department, Luxembourg Institute of Science and Technology (LIST), L-4422 Belvaux, Luxembourg
| | - Mohammad Khaja Nazeeruddin
- Group
for Molecular Engineering of Functional Materials (GMF), Institute
of Chemical Sciences and Engineering, Swiss Federal Institute of Technology, CH-1951 Sion, Switzerland
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47
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Abstract
The role of chlorine doping in CH3NH3PbI3 represents an important open issue in the use of hybrid perovskites for photovoltaic applications. In particular, even if a positive role of chlorine doping on perovskite film formation and on material morphology has been demonstrated, an inherent positive effect on the electronic and photovoltaic properties cannot be excluded. Here we carried out periodic density functional theory and Car-Parrinello molecular dynamics simulations, going down to ∼1% doping, to investigate the effect of chlorine on CH3NH3PbI3. We found that such a small doping has important effects on the dynamics of the crystalline structure, both with respect to the inorganic framework and with respect to the cation libration motion. Together, we observe a dynamic spatial localization of the valence and conduction states in separated spatial material regions, which takes place in the 10-1 ps time scale and which could be the key to ease of exciton dissociation and, likely, to small charge recombination in hybrid perovskites. Moreover, such localization is enhanced by chlorine doping, demonstrating an inherent positive role of chlorine doping on the electronic properties of this class of materials.
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Affiliation(s)
- Claudio Quarti
- Computational Laboratory for Hybrid/Organic Photovoltaics, CNR-ISTM , via Elce di Sotto 8, I-06123 Perugia, Italy
| | - Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics, CNR-ISTM , via Elce di Sotto 8, I-06123 Perugia, Italy.,CompuNet, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Paolo Umari
- Dipartimento di Fisica e Astronomia, Università di Padova , via Marzolo 8, I-35131 Padova, Italy.,Theory@Elettra Group, c/o Sincrotrone Trieste, Area Science Park, CNR-IOM DEMOCRITOS , I-34012 Basovizza, Trieste, Italy
| | - Filippo De Angelis
- Computational Laboratory for Hybrid/Organic Photovoltaics, CNR-ISTM , via Elce di Sotto 8, I-06123 Perugia, Italy.,CompuNet, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
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48
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Mosconi E, Quarti C, De Angelis F. First Principles Modeling of Perovskite Solar Cells: Interplay of Structural, Electronic and Dynamical Effects. Unconventional Thin Film Photovoltaics 2016. [DOI: 10.1039/9781782624066-00234] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The impressive surge of perovskite solar cells has been accompanied by a comparable effort to unveil the basics properties of this class of materials. Theoretical and computational modeling is playing a major role in providing scientists an in depth atomistic view of the intimate perovskite properties contributing to the success of this class of materials. In this chapter we discuss recent advances in our understanding of organohalide perovskites based on first principles calculations and molecular dynamics simulations. Emphasis is placed on the interplay of electronic and structural features and on the important role of the organic cation and of its dynamics in dictating the peculiar material’s properties. The role of chlorine doping in methylammonium lead iodide and of interfaces with TiO2 in solar cells models are finally described.
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Affiliation(s)
- Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM via Elce di Sotto I-06123 Perugia Italy
- CompuNet, Istituto Italiano di Tecnologia Via Morego 30 16163 Genova Italy
| | - Claudio Quarti
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM via Elce di Sotto I-06123 Perugia Italy
- Laboratory for Chemistry of Novel Materials, Universitè de Mons Place du Park, 20 7000 Mons Belgium
| | - Filippo De Angelis
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM via Elce di Sotto I-06123 Perugia Italy
- CompuNet, Istituto Italiano di Tecnologia Via Morego 30 16163 Genova Italy
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49
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Etienne T, Mosconi E, De Angelis F. Dynamical Origin of the Rashba Effect in Organohalide Lead Perovskites: A Key to Suppressed Carrier Recombination in Perovskite Solar Cells? J Phys Chem Lett 2016; 7:1638-45. [PMID: 27062910 DOI: 10.1021/acs.jpclett.6b00564] [Citation(s) in RCA: 127] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The presence of a Rashba band-splitting mechanism mediated by spin-orbit coupling and breaking of inversion symmetry has been suggested as a possible cause for the reduced recombination rates observed in organohalide perovskites. Here, we investigate the interplay of electronic and nuclear degrees of freedom in defining the Rashba splitting in realistic MAPbI3 models. Our simulations disclose a "dynamical Rashba effect", allowing for a quantification of its magnitude under thermal conditions. We find that even in globally centrosymmetric structures the dynamics of the coupled inorganic-organic degrees of freedom give rise to a spatially local Rashba effect which fluctuates on the subpicosecond time scale typical of the methylammonium cation dynamics. This effect is progressively quenched in globally centrosymmetric structures, likely representing the MAPbI3 perovskite at room temperature, on increasing the probed spatial scale up to 32 MAPbI3 units (∼3 nm size) because of the incoherent nuclear thermal motion mediated by the disorder of the organic cations.
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Affiliation(s)
- Thibaud Etienne
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, via Elce di Sotto, I-06123 Perugia, Italy
| | - Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, via Elce di Sotto, I-06123 Perugia, Italy
- CompuNet, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Filippo De Angelis
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, via Elce di Sotto, I-06123 Perugia, Italy
- CompuNet, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
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50
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Akkerman QA, Motti SG, Srimath Kandada AR, Mosconi E, D'Innocenzo V, Bertoni G, Marras S, Kamino BA, Miranda L, De Angelis F, Petrozza A, Prato M, Manna L. Solution Synthesis Approach to Colloidal Cesium Lead Halide Perovskite Nanoplatelets with Monolayer-Level Thickness Control. J Am Chem Soc 2016; 138:1010-6. [PMID: 26726764 PMCID: PMC4731826 DOI: 10.1021/jacs.5b12124] [Citation(s) in RCA: 363] [Impact Index Per Article: 45.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
We report a colloidal synthesis approach to CsPbBr3 nanoplatelets (NPLs). The nucleation and growth of the platelets, which takes place at room temperature, is triggered by the injection of acetone in a mixture of precursors that would remain unreactive otherwise. The low growth temperature enables the control of the plate thickness, which can be precisely tuned from 3 to 5 monolayers. The strong two-dimensional confinement of the carriers at such small vertical sizes is responsible for a narrow PL, strong excitonic absorption, and a blue shift of the optical band gap by more than 0.47 eV compared to that of bulk CsPbBr3. We also show that the composition of the NPLs can be varied all the way to CsPbBr3 or CsPbI3 by anion exchange, with preservation of the size and shape of the starting particles. The blue fluorescent CsPbCl3 NPLs represent a new member of the scarcely populated group of blue-emitting colloidal nanocrystals. The exciton dynamics were found to be independent of the extent of 2D confinement in these platelets, and this was supported by band structure calculations.
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Affiliation(s)
- Quinten A Akkerman
- Nanochemistry Department, Istituto Italiano di Tecnologia , Via Morego 30, 16163 Genova, Italy.,Università degli Studi di Genova , Via Dodecaneso, 31, 16146, Genova, Italy
| | - Silvia Genaro Motti
- Center for Nano Science and Technology @Polimi, Istituto Italiano di Tecnologia , Via Giovanni Pascoli 70/3, 20133 Milano, Italy.,Dipartimento di Fisica, Politecnico di Milano , Piazza Leonardo da Vinci, 32, 20133 Milano, Italy
| | - Ajay Ram Srimath Kandada
- Center for Nano Science and Technology @Polimi, Istituto Italiano di Tecnologia , Via Giovanni Pascoli 70/3, 20133 Milano, Italy
| | - Edoardo Mosconi
- Computational Laboratory for Hybrid/Organic Photovoltaics, CNR-ISTM , Via Elce di Sotto, 06123 Perugia, Italy
| | - Valerio D'Innocenzo
- Center for Nano Science and Technology @Polimi, Istituto Italiano di Tecnologia , Via Giovanni Pascoli 70/3, 20133 Milano, Italy.,Dipartimento di Fisica, Politecnico di Milano , Piazza Leonardo da Vinci, 32, 20133 Milano, Italy
| | - Giovanni Bertoni
- Nanochemistry Department, Istituto Italiano di Tecnologia , Via Morego 30, 16163 Genova, Italy.,IMEM-CNR , Parco Area delle Scienze 37/A, 43124 Parma, Italy
| | - Sergio Marras
- Nanochemistry Department, Istituto Italiano di Tecnologia , Via Morego 30, 16163 Genova, Italy
| | - Brett A Kamino
- Centre for Innovation and Enterprise, OxfordPV Ltd. , Begbroke Science Park, Woodstock Road, Oxford OX5 1PF, United Kingdom
| | - Laura Miranda
- Centre for Innovation and Enterprise, OxfordPV Ltd. , Begbroke Science Park, Woodstock Road, Oxford OX5 1PF, United Kingdom
| | - Filippo De Angelis
- CompuNet, Istituto Italiano di Tecnologia , Via Morego 30, 16163 Genova, Italy.,Computational Laboratory for Hybrid/Organic Photovoltaics, CNR-ISTM , Via Elce di Sotto, 06123 Perugia, Italy
| | - Annamaria Petrozza
- Center for Nano Science and Technology @Polimi, Istituto Italiano di Tecnologia , Via Giovanni Pascoli 70/3, 20133 Milano, Italy
| | - Mirko Prato
- Nanochemistry Department, Istituto Italiano di Tecnologia , Via Morego 30, 16163 Genova, Italy
| | - Liberato Manna
- Nanochemistry Department, Istituto Italiano di Tecnologia , Via Morego 30, 16163 Genova, Italy
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