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Huang YH, Wang XD, Li WG, Zou SY, Yang X, Kuang DB. Band Structure Optimized by Electron-Acceptor Cations for Sensitive Perovskite Single Crystal Self-Powered Photodetectors. Small 2024; 20:e2306821. [PMID: 38009496 DOI: 10.1002/smll.202306821] [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] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 11/01/2023] [Indexed: 11/29/2023]
Abstract
Low-dimensional perovskites afford improved stability against moisture, heat, and ionic migration. However, the low dimensionality typically results in a wide bandgap and strong electron-phonon coupling, which is undesirable for optoelectronic applications. Herein, semiconducting A-site organic cation engineering by electron-acceptor bipyridine (bpy) cations (2,2'-bpy2+ and 4,4'-bpy2+) is employed to optimize band structure in low-dimensional perovskites. Benefiting from the merits of lower lowest unoccupied molecular orbital (LUMO) energy for 4,4'-bpy2+ cation, the corresponding (4,4'-bpy)PbI4 is endowed with a smaller bandgap (1.44 eV) than the (CH3NH3)PbI3 (1.57 eV) benchmark. Encouragingly, an intramolecular type II band alignment formation between inorganic Pb-I octahedron anions and bpy2+ cations favors photogenerated electron-hole pairs separation. In addition, a shortening distance between inorganic Pb-I octahedral chains in (4,4'-bpy)PbI4 single crystal (SC) can effectively promote carrier transfer. As a result, a self-powered photodetector based on (4,4'-bpy)PbI4 SC exhibits 131 folds higher on/off ratio (3807) than the counterpart of (2,2'-bpy)2Pb3I10 SC (29). The presented result provides an effective strategy for exporting novel organic cation-based low-dimensional perovskite SC for high-performance optoelectronic devices.
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Affiliation(s)
- Yu-Hua Huang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, LIFM, GBRCE for Functional Molecular Engineering, School of Chemistry, IGCME, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Xu-Dong Wang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, LIFM, GBRCE for Functional Molecular Engineering, School of Chemistry, IGCME, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Wen-Guang Li
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, LIFM, GBRCE for Functional Molecular Engineering, School of Chemistry, IGCME, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Su-Yan Zou
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, LIFM, GBRCE for Functional Molecular Engineering, School of Chemistry, IGCME, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Xin Yang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, LIFM, GBRCE for Functional Molecular Engineering, School of Chemistry, IGCME, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Dai-Bin Kuang
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, LIFM, GBRCE for Functional Molecular Engineering, School of Chemistry, IGCME, Sun Yat-Sen University, Guangzhou, 510275, China
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2
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Wan S, Musielak N, Oliver AG, Jaffe A. Controlling Electron Delocalization in Vanadium-Based Hybrid Bronzes through Molecular Templation. Angew Chem Int Ed Engl 2023:e202314523. [PMID: 37917037 DOI: 10.1002/anie.202314523] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 10/31/2023] [Accepted: 11/02/2023] [Indexed: 11/03/2023]
Abstract
We show that the conductivity of hybrid vanadium bronzes-mixed-valence organic-inorganic vanadium oxides-can be tuned over six orders of magnitude through judicious choice of molecular component. By systematically varying the steric profile, charge density, and propensity to hydrogen bond across a series of eight diammonium-based molecules, we engender multiple distinct motifs of V-O connectivity within the two-dimensional vanadium oxide layers of a family of bulk crystalline hybrid materials. A combination of single-crystal and powder X-ray diffraction analysis, variable-temperature electrical transport measurements, and a range of spectroscopic methods, including UV/Visible diffuse reflectance, X-ray photoelectron, and electron paramagnetic resonance are employed to probe how vanadium oxide layer topology correlates with electron localization. Specifically, alkylammonium molecules yield hybrids featuring more corrugated layers that contain V-O tetrahedra as well as a higher ratio of corner-sharing to edge-sharing polyhedra and that exhibit highly localized electronic behavior, while alkyl bipyridinium molecules yield more regular layers with polyhedral edge-sharing that show substantially delocalized electronic behavior. This work allows for the development of design principles based on structure-property relationships and brings the charge transport capabilities of hybrid vanadium bronzes to more technologically relevant levels.
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Affiliation(s)
- Suchen Wan
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Nicole Musielak
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Allen G Oliver
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Adam Jaffe
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN, 46556, USA
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3
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Ahmed M, Wu Y, Schiavone MR, Lang K, You L, Zeller M, Mei J. Synthesis and Reduction of Nitrogen-Substituted Diaryl Dihydrophenazine Diradical Dications. Org Lett 2023; 25:6363-6367. [PMID: 37607053 DOI: 10.1021/acs.orglett.3c02333] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
A one-pot synthetic approach to form core-extended N,N'-disubstituted diaryl dihydrophenazine (DADHP) diradical dications (DRDCs) via chemical oxidation from aryl-substituted ortho-phenyldiamines is reported. The isolated N,N'-disubstituted DADHP DRDCs were reduced to their neutral counterparts with hydrazine. The model system featuring an unsubstituted fluorene aryl group, 2a, was tested as a photocatalyst for the polymerization of methyl methacrylate using organocatalyzed atom transfer polymerization (O-ATRP), which yielded a polymer with a controlled molecular weight and narrow polydispersity.
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Affiliation(s)
- Mustafa Ahmed
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Yukun Wu
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Matthew R Schiavone
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Kai Lang
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Liyan You
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Matthias Zeller
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Jianguo Mei
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
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4
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Möbs J, Stuhrmann G, Weigend F, Heine J. Establishing Family Relations in Group 15 Halogenido Metalates with the Largest Molecular Antimony Iodide Anion. Chemistry 2023; 29:e202202931. [PMID: 36193853 PMCID: PMC10100358 DOI: 10.1002/chem.202202931] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Indexed: 11/05/2022]
Abstract
Studying structurally related families of compounds is a valuable tool in understanding and predicting material properties and has been extensively used for metal halide perovskites. Due to the variable anion structures in group 15 halogenido metalates, similar family relations are still largely missing. Herein, we present compounds featuring the [Sb2n I6n+4 ]4- family of anions, including the first n=5 member in [Hpyz]4 [Sb10 I34 ] (Hpyz=pyrazinium), which contains the largest halogenido pentelate anion reported to date. The optical properties of compounds featuring n=1-5 anions show a clear trend as well as an outlier, a low band gap of 1.72 eV for [Hpyz]4 [Sb10 I34 ], that can be well understood using quantum chemical investigations. Also using SbI3 and [H2 NMe2 ]3 [SbI6 ], a compound featuring a single octahedral [SbI6 ]3- unit, as limiting cases, we show that structure-property relationships can be established in group 15 halogenido metalates in a similar way as in metal halide perovskites, thus providing a framework for understanding new and known compounds in this emerging class of materials.
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Affiliation(s)
- Jakob Möbs
- Department of Chemistry, Philipps-University Marburg, Hans-Meerwein-Straße 4, 35032, Marburg, Germany
| | - Gina Stuhrmann
- Department of Chemistry, Philipps-University Marburg, Hans-Meerwein-Straße 4, 35032, Marburg, Germany
| | - Florian Weigend
- Department of Chemistry, Philipps-University Marburg, Hans-Meerwein-Straße 4, 35032, Marburg, Germany
| | - Johanna Heine
- Department of Chemistry, Philipps-University Marburg, Hans-Meerwein-Straße 4, 35032, Marburg, Germany
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5
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Ke F, Yan J, Niu S, Wen J, Yin K, Yang H, Wolf NR, Tzeng Y, Karunadasa HI, Lee YS, Mao WL, Lin Y. Cesium-mediated electron redistribution and electron-electron interaction in high-pressure metallic CsPbI3. Nat Commun 2022; 13:7067. [DOI: 10.1038/s41467-022-34786-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 11/08/2022] [Indexed: 11/19/2022] Open
Abstract
AbstractElectron-phonon coupling was believed to govern the carrier transport in halide perovskites and related phases. Here we demonstrate that electron-electron interaction enhanced by Cs-involved electron redistribution plays a direct and prominent role in the low-temperature electrical transport of compressed CsPbI3 and renders Fermi liquid (FL)-like behavior. By compressing δ-CsPbI3 to 80 GPa, an insulator-semimetal-metal transition occurs, concomitant with the completion of a slow structural transition from the one-dimensional Pnma (δ) phase to a three-dimensional Pmn21 (ε) phase. Deviation from FL behavior is observed upon CsPbI3 entering the metallic ε phase, which progressively evolves into a FL-like state at 186 GPa. First-principles density functional theory calculations reveal that the enhanced electron-electron coupling results from the sudden increase of the 5d state occupation in Cs and I atoms. Our study presents a promising strategy of cationic manipulation for tuning the electronic structure and carrier scattering of halide perovskites at high pressure.
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6
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Ji C, Zhu T, Fan Y, Li Z, Liu X, Li L, Sun Z, Luo J. Localized Lattice Expansion of FAPbBr
3
to Design a 3D Hybrid Perovskite for Sensitive Near‐Infrared Photodetection. Angew Chem Int Ed Engl 2022; 61:e202213294. [DOI: 10.1002/anie.202213294] [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] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Indexed: 11/05/2022]
Affiliation(s)
- Chengmin Ji
- State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou Fujian 350108 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Tingting Zhu
- State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 China
| | - Yipeng Fan
- State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 China
| | - Zhou Li
- State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 China
| | - Xitao Liu
- State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou Fujian 350108 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Lina Li
- State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou Fujian 350108 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Zhihua Sun
- State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou Fujian 350108 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Junhua Luo
- State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 China
- School of Chemistry and Chemical Engineering Jiangxi Normal University Nanchang 330022 China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou Fujian 350108 China
- University of Chinese Academy of Sciences Beijing 100049 China
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7
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Matheu R, Ke F, Breidenbach A, Wolf NR, Lee Y, Liu Z, Leppert L, Lin Y, Karunadasa HI. Charge Reservoirs in an Expanded Halide Perovskite Analog: Enhancing High‐Pressure Conductivity through Redox‐Active Molecules. Angew Chem Int Ed Engl 2022; 61:e202202911. [DOI: 10.1002/anie.202202911] [Citation(s) in RCA: 1] [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] [Received: 02/23/2022] [Indexed: 11/12/2022]
Affiliation(s)
- Roc Matheu
- Department of Chemistry Stanford University Stanford CA 94305 USA
| | - Feng Ke
- Stanford Institute for Materials and Energy Sciences SLAC National Accelerator Laboratory Menlo Park CA 94025 USA
- Department of Geological Sciences Stanford University Stanford CA 94305 USA
| | - Aaron Breidenbach
- Stanford Institute for Materials and Energy Sciences SLAC National Accelerator Laboratory Menlo Park CA 94025 USA
- Department of Physics Stanford University Stanford CA 94305 USA
| | - Nathan R. Wolf
- Department of Chemistry Stanford University Stanford CA 94305 USA
| | - Young Lee
- Stanford Institute for Materials and Energy Sciences SLAC National Accelerator Laboratory Menlo Park CA 94025 USA
- Department of Applied Physics Stanford University Stanford CA 94305 USA
| | - Zhenxian Liu
- Department of Physics University of Illinois at Chicago Chicago IL 60607 USA
| | - Linn Leppert
- MESA+ Institute for Nanotechnology University of Twente 7500 AE Enschede The Netherlands
| | - Yu Lin
- Stanford Institute for Materials and Energy Sciences SLAC National Accelerator Laboratory Menlo Park CA 94025 USA
| | - Hemamala I. Karunadasa
- Department of Chemistry Stanford University Stanford CA 94305 USA
- Stanford Institute for Materials and Energy Sciences SLAC National Accelerator Laboratory Menlo Park CA 94025 USA
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8
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Abstract
Hybrid lead halides are a diverse family of compounds, of interest for their optoelectronic properties, that vary in the dimensionality and connectivity of their inorganic substructures. The great majority of these compounds are based on lead-centered octahedra, with few examples featuring inorganic architectures containing higher coordination numbers. Here, we report the synthesis and characterization of a pyridinium lead bromide phase that is based on seven-coordinate Pb(II) centers. Through edge- and face-sharing, the polyhedra form a corrugated, two-dimensional inorganic substructure. Electronic structure calculations were used to examine the band structure and the role of the stereoactive lone pair in the inherently asymmetric, seven-coordinate Pb(II) geometry. For reference, we have visualized the role of the lone pair in the binary halide PbBr2, which also has a seven-coordinate inner ligand sphere. A comparison of the new structure with the limited number of existing hybrid lead halides with similar inorganic architectures highlights the templating role of the organic cation for these compounds. We also contribute characterization and discussion of isomorphic pyridinium lead chloride, which had been deposited in the Cambridge Structural Database but never, to our knowledge, addressed in the literature. The compounds were synthesized using solution conditions and structures determined with single-crystal X-ray diffraction. The materials were also characterized via powder X-ray diffraction, combustion elemental analysis, and diffuse reflectance UV-vis spectroscopy. While the structures reported here are centrosymmetric, the seven-coordinate, capped trigonal prismatic geometry that we have identified is a source of local asymmetry that could be used as a component in designing globally noncentrosymmetric structures.
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Affiliation(s)
- Alyssa S Chow
- Department of Chemistry and Biochemistry, Oberlin College, 119 Woodland Street, Oberlin, Ohio 44074, United States
| | - Xinyue Zhong
- Department of Chemistry and Biochemistry, Oberlin College, 119 Woodland Street, Oberlin, Ohio 44074, United States
| | - Douglas H Fabini
- Max Planck Institute for Solid State Research, Heisenbergstraße 1, 70569 Stuttgart, Germany
| | - Matthias Zeller
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, United States
| | - Catherine M Oertel
- Department of Chemistry and Biochemistry, Oberlin College, 119 Woodland Street, Oberlin, Ohio 44074, United States
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9
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Matheu R, Ke F, Breidenbach A, Wolf N, Lee Y, Liu Z, Leppert L, Lin Y, Karunadasa H. Charge Reservoirs in an Expanded Halide Perovskite Analog: Enhancing High‐Pressure Conductivity through Redox‐Active Molecules. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202202911] [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] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Roc Matheu
- Stanford University Chemistry UNITED STATES
| | - Feng Ke
- Stanford University Geological Sciences UNITED STATES
| | | | | | - Young Lee
- Stanford University Applied Physics UNITED STATES
| | - Zhenxian Liu
- University of Illinois at Chicago Physics UNITED STATES
| | - Linn Leppert
- University of Twente Institute for Nanotechnology: Universiteit Twente MESA+ Physics NETHERLANDS
| | - Yu Lin
- SLAC National Accelerator Laboratory Stanford Institute for Materials and Energy Sciences UNITED STATES
| | - Hemamala Karunadasa
- Stanford University Department of Chemistry 333 Campus Drive, Mudd Building 94305-4401 Stanford UNITED STATES
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11
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Li X, Kepenekian M, Li L, Dong H, Stoumpos CC, Seshadri R, Katan C, Guo P, Even J, Kanatzidis MG. Tolerance Factor for Stabilizing 3D Hybrid Halide Perovskitoids Using Linear Diammonium Cations. J Am Chem Soc 2022; 144:3902-3912. [PMID: 35213137 DOI: 10.1021/jacs.1c11803] [Citation(s) in RCA: 6] [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: 01/23/2023]
Abstract
Three-dimensional (3D) halide perovskites have attracted enormous research interest, but the choice of the A-site cations is limited by the Goldschmidt tolerance factor. In order to accommodate cations that lie outside the acceptable range of the tolerance factor, low-dimensional structures usually form. To maintain the favorable 3D connection, the links among the metal-halide octahedra need to be rearranged to fit the large cations. This can result in a departure from the proper corner-sharing perovskite architectures and lead to distinctly different perovskitoid motifs with edge- and face-sharing. In this work, we report four new 3D bromide perovskitoids incorporating linear organic diammonium cations, A'Pb2Br6 (A' is a +2 cation). We propose a rule that can guide the further expansion of this class of compounds, analogous to the notion of Goldschmidt tolerance factor widely adopted for 3D AMX3 perovskites. The fundamental building blocks in A'Pb2Br6 consist of two edge-shared octahedra, which are then connected by corner-sharing to form a 3D network. Different compounds adopt different structural motifs, which can be transformed from one to another by symmetry operations. Electronic structure calculations suggest that they are direct bandgap semiconductors, with relatively large band dispersions created by octahedra connected by corner-sharing. They exhibit similar electronic band structures and dynamic lattice characteristics to the regular 3D AMX3 perovskites. Structures with smaller Pb-Br-Pb angles and larger octahedra distortion exhibit broad photoluminescence at room temperature. The emerging structure-property relationships in these 3D perovskitoids set the foundation for designing and investigating these compounds for a variety of optoelectronic applications.
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Affiliation(s)
- Xiaotong Li
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Mikaël Kepenekian
- Univ Rennes, ENSCR, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, Rennes F-35000, France
| | - Linda Li
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06511, United States
| | - Hao Dong
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06511, United States
| | - Constantinos C Stoumpos
- Department of Materials Science and Technology, University of Crete, Voutes Campus, Heraklion GR-70013, Greece
| | - Ram Seshadri
- Materials Department and Materials Research Laboratory, University of California, Santa Barbara, California 93106, United States
| | - Claudine Katan
- Univ Rennes, ENSCR, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, Rennes F-35000, France
| | - Peijun Guo
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06511, United States
| | - Jacky Even
- Univ Rennes, INSA Rennes, CNRS, Institut FOTON - UMR 6082, Rennes F-35000, France
| | - Mercouri G Kanatzidis
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
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12
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Fu H, Jiang C, Luo C, Lin H, Peng H. A Quasi‐Two‐Dimensional Copper Based Organic‐Inorganic Hybrid Perovskite with Reversible Thermochromism and Ferromagnetism. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100811] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Hanmei Fu
- Key Laboratory of Polar Materials and Devices (MOE) Department of Electronics School of Physics and Electronic Science East China Normal University Shanghai 200241 China
| | - Chunli Jiang
- Key Laboratory of Polar Materials and Devices (MOE) Department of Electronics School of Physics and Electronic Science East China Normal University Shanghai 200241 China
| | - Chunhua Luo
- Key Laboratory of Polar Materials and Devices (MOE) Department of Electronics School of Physics and Electronic Science East China Normal University Shanghai 200241 China
| | - Hechun Lin
- Key Laboratory of Polar Materials and Devices (MOE) Department of Electronics School of Physics and Electronic Science East China Normal University Shanghai 200241 China
| | - Hui Peng
- Key Laboratory of Polar Materials and Devices (MOE) Department of Electronics School of Physics and Electronic Science East China Normal University Shanghai 200241 China
- Collaborative Innovation Center of Extreme Optics Shanxi University Taiyuan Shanxi 030006 China
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13
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Fu P, Hu S, Tang J, Xiao Z. Material exploration via designing spatial arrangement of octahedral units: a case study of lead halide perovskites. Front Optoelectron 2021; 14:252-259. [PMID: 36637668 PMCID: PMC9743903 DOI: 10.1007/s12200-021-1227-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 04/06/2021] [Indexed: 05/25/2023]
Abstract
Halide perovskites have attracted tremendous attention as semiconducting materials for various optoelectronic applications. The functional metal-halide octahedral units and their spatial arrangements play a key role in the optoelectronic properties of these materials. At present, most of the efforts for material exploration focus on substituting the constituent elements of functional octahedral units, whereas designing the spatial arrangement of the functional units has received relatively little consideration. In this work, via a global structure search based on density functional theory (DFT), we discovered a metastable three-dimensional honeycomb-like perovskite structure with the functional octahedral units arranged through mixed edge- and corner-sharing. We experimentally confirmed that the honeycomb-like perovskite structure can be stabilized by divalent molecular cations with suitable size and shape, such as 2,2'-bisimidazole (BIM). DFT calculations and experimental characterizations revealed that the honeycomb-like perovskite with the formula of BIMPb2I6, synthesized through a solution process, exhibits high electronic dimensionality, a direct allowed bandgap of 2.1 eV, small effective masses for both electrons and holes, and high optical absorption coefficients, which indicates a significant potential for optoelectronic applications. The employed combination of DFT and experimental study provides an exemplary approach to explore prospective optoelectronic semiconductors via spatially arranging functional units.
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Affiliation(s)
- Pengfei Fu
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074 China
| | - Sanlue Hu
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074 China
- School of Physics, Huazhong University of Science and Technology, Wuhan, 430074 China
| | - Jiang Tang
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074 China
- School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, 430074 China
| | - Zewen Xiao
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074 China
- School of Physics, Huazhong University of Science and Technology, Wuhan, 430074 China
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14
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Lédée F, Audebert P, Trippé-Allard G, Galmiche L, Garrot D, Marrot J, Lauret JS, Deleporte E, Katan C, Even J, Quarti C. Tetrazine molecules as an efficient electronic diversion channel in 2D organic-inorganic perovskites. Mater Horiz 2021; 8:1547-1560. [PMID: 34846463 DOI: 10.1039/d0mh01904f] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Taking advantage of an innovative design concept for layered halide perovskites with active chromophores acting as organic spacers, we present here the synthesis of two novel two-dimensional (2D) hybrid organic-inorganic halide perovskites incorporating for the first time 100% of a photoactive tetrazine derivative as the organic component. Namely, the use of a heterocyclic ring containing a nitrogen proportion imparts a unique electronic structure to the organic component, with the lowest energy optical absorption in the blue region. The present compound, a tetrazine, presents several resonances between the organic and inorganic components, both in terms of single particle electronic levels and exciton states, providing the ideal playground to discuss charge and energy transfer mechanisms at the organic/inorganic interface. Photophysical studies along with hybrid time-dependent DFT simulations demonstrate partial energy transfer and rationalise the suppressed emission from the perovskite frame in terms of different energy-transfer diversion channels, potentially involving both singlet and triplet states of the organic spacer. Periodic DFT simulations also support the feasibility of electron transfer from the conduction band of the inorganic component to the LUMO of the spacer as a potential quenching mechanism, suggesting the coexistence and competition of charge and energy transfer mechanisms in these heterostructures. Our work proves the feasibility of inserting photoactive small rings in a 2D perovskite structure, meanwhile providing a robust frame to rationalize the electronic interactions between the semiconducting inorganic layer and organic chromophores, with the prospects of optimizing the organic moiety according to the envisaged application.
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Affiliation(s)
- Ferdinand Lédée
- Université Paris-Saclay, ENS Paris-Saclay, CNRS, CentraleSupelec, LuMIn (Laboratoire Lumière, Matière et Interfaces), 91190 Gif-sur-Yvette, France.
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Tang YY, Liu YH, Peng H, Deng BB, Cheng TT, Hu YT. Three-Dimensional Lead Bromide Hybrid Ferroelectric Realized by Lattice Expansion. J Am Chem Soc 2020; 142:19698-19704. [DOI: 10.1021/jacs.0c09586] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yuan-Yuan Tang
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People’s Republic of China
| | - Yu-Hua Liu
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People’s Republic of China
| | - Hang Peng
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People’s Republic of China
| | - Bin-Bin Deng
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People’s Republic of China
| | - Ting-Ting Cheng
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People’s Republic of China
| | - Yan-Ting Hu
- Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People’s Republic of China
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