1
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Kambhampati P. Unraveling the excitonics of light emission from metal-halide perovskite quantum dots. NANOSCALE 2024; 16:15033-15058. [PMID: 39052235 DOI: 10.1039/d4nr01481b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/27/2024]
Abstract
Metal halide semicondictor perovskites have been under intense investigation for their promise in light absorptive applications like photovoltaics. They have more recently experienced interest for their promise in light emissive applications. A key aspect of perovskites is their glassy, ionic lattice that exhibits dynamical disorder. One possible result of this dynamical disorder is their strong coupling between electronic and lattice degrees of freedom which may confer remarkable properties for light emission such as defect tolerance. How does the system, comprised of excitons, couple to the bath, comprised of lattice modes? How does this system-bath interaction give rise to novel light emissive properties and how do these properties give insight into the nature of these materials? We review recent work from this group in which time-resolved photoluminescence spectroscopy is used to reveal such insights. Based upon a fast time resolution of 3 ps, energy resolution, and temperature dependence, a wide variety of insights are gleaned. These insights include: lattice contributions to the emission linewidths, multiexciton formation, hot carrier cooling, excitonic fine structure, single dot superradiance, and a breakdown of the Condon approximation, all due to complex structural dynamics in these materials.
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2
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Oddi V, Zhu C, Becker MA, Sahin Y, Dirin DN, Kim T, Mahrt RF, Even J, Rainò G, Kovalenko MV, Stöferle T. Circularly Polarized Luminescence Without External Magnetic Fields from Individual CsPbBr 3 Perovskite Quantum Dots. ACS NANO 2024; 18:17218-17227. [PMID: 38904261 PMCID: PMC11223489 DOI: 10.1021/acsnano.4c04392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 05/31/2024] [Accepted: 06/11/2024] [Indexed: 06/22/2024]
Abstract
Lead halide perovskite quantum dots (QDs), the latest generation of the colloidal QD family, exhibit outstanding optical properties, which are now exploited as both classical and quantum light sources. Most of their rather exceptional properties are related to the peculiar exciton fine-structure of band-edge states, which can support unique bright triplet excitons. The degeneracy of the bright triplet excitons is lifted with energetic splitting in the order of millielectronvolts, which can be resolved by the photoluminescence (PL) measurements of single QDs at cryogenic temperatures. Each bright exciton fine-structure-state (FSS) exhibits a dominantly linear polarization, in line with several theoretical models based on the sole crystal field, exchange interaction, and shape anisotropy. Here, we show that in addition to a high degree of linear polarization, the individual exciton FSS can exhibit a non-negligible degree of circular polarization even without external magnetic fields by investigating the four Stokes parameters of the exciton fine-structure in individual CsPbBr3 QDs through Stokes polarimetric measurements. We observe a degree of circular polarization up to ∼38%, which could not be detected by using the conventional polarimetric technique. In addition, we found a consistent transition from left- to right-hand circular polarization within the fine-structure triplet manifold, which was observed in magnetic-field-dependent experiments. Our optical investigation provides deeper insights into the nature of the exciton fine structures and thereby drives the yet-incomplete understanding of the unique photophysical properties of this class of QDs for the benefit of future applications in chiral quantum optics.
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Affiliation(s)
- Virginia Oddi
- IBM
Research Europe—Zurich, Säumerstrasse 4, 8803 Rüschlikon, Switzerland
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zurich, Switzerland
| | - Chenglian Zhu
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zurich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa,
Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland
| | - Michael A. Becker
- IBM
Research Europe—Zurich, Säumerstrasse 4, 8803 Rüschlikon, Switzerland
| | - Yesim Sahin
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zurich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa,
Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland
| | - Dmitry N. Dirin
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zurich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa,
Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland
| | - Taehee Kim
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zurich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa,
Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland
| | - Rainer F. Mahrt
- IBM
Research Europe—Zurich, Säumerstrasse 4, 8803 Rüschlikon, Switzerland
| | - Jacky Even
- Université
de Rennes, INSA Rennes, CNRS, Institut FOTON - UMR6082, 35000 Rennes, France
| | - Gabriele Rainò
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zurich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa,
Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland
| | - Maksym V. Kovalenko
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zurich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa,
Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland
| | - Thilo Stöferle
- IBM
Research Europe—Zurich, Säumerstrasse 4, 8803 Rüschlikon, Switzerland
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3
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Bodnarchuk MI, Feld LG, Zhu C, Boehme SC, Bertolotti F, Avaro J, Aebli M, Mir SH, Masciocchi N, Erni R, Chakraborty S, Guagliardi A, Rainò G, Kovalenko MV. Colloidal Aziridinium Lead Bromide Quantum Dots. ACS NANO 2024. [PMID: 38320982 PMCID: PMC10883123 DOI: 10.1021/acsnano.3c11579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
The compositional engineering of lead-halide perovskite nanocrystals (NCs) via the A-site cation represents a lever to fine-tune their structural and electronic properties. However, the presently available chemical space remains minimal since, thus far, only three A-site cations have been reported to favor the formation of stable lead-halide perovskite NCs, i.e., Cs+, formamidinium (FA), and methylammonium (MA). Inspired by recent reports on bulk single crystals with aziridinium (AZ) as the A-site cation, we present a facile colloidal synthesis of AZPbBr3 NCs with a narrow size distribution and size tunability down to 4 nm, producing quantum dots (QDs) in the regime of strong quantum confinement. NMR and Raman spectroscopies confirm the stabilization of the AZ cations in the locally distorted cubic structure. AZPbBr3 QDs exhibit bright photoluminescence with quantum efficiencies of up to 80%. Stabilized with cationic and zwitterionic capping ligands, single AZPbBr3 QDs exhibit stable single-photon emission, which is another essential attribute of QDs. In particular, didodecyldimethylammonium bromide and 2-octyldodecyl-phosphoethanolamine ligands afford AZPbBr3 QDs with high spectral stability at both room and cryogenic temperatures, reduced blinking with a characteristic ON fraction larger than 85%, and high single-photon purity (g(2)(0) = 0.1), all comparable to the best-reported values for MAPbBr3 and FAPbBr3 QDs of the same size.
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Affiliation(s)
- Maryna I Bodnarchuk
- Laboratory for Thin Films and Photovoltaics, Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf 8600, Switzerland
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich 8093, Switzerland
| | - Leon G Feld
- Laboratory for Thin Films and Photovoltaics, Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf 8600, Switzerland
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich 8093, Switzerland
| | - Chenglian Zhu
- Laboratory for Thin Films and Photovoltaics, Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf 8600, Switzerland
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich 8093, Switzerland
| | - Simon C Boehme
- Laboratory for Thin Films and Photovoltaics, Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf 8600, Switzerland
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich 8093, Switzerland
| | - Federica Bertolotti
- Department of Science and High Technology and To.Sca.Lab., University of Insubria, via Valleggio 11, Como 22100, Italy
| | - Jonathan Avaro
- Centre for X-ray Analytics & Laboratory for Biomimetic Membranes and Textiles, Empa, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen 9014, Switzerland
| | - Marcel Aebli
- Laboratory for Thin Films and Photovoltaics, Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf 8600, Switzerland
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich 8093, Switzerland
| | - Showkat Hassan Mir
- Materials Theory for Energy Scavenging (MATES) Lab, Harish-Chandra Research Institute (HRI) Allahabad, A C.I. of Homi Bhabha National Institute (HBNI), Chhatnag Road, Jhunsi, Prayagraj (Allahabad) 211019, India
| | - Norberto Masciocchi
- Department of Science and High Technology and To.Sca.Lab., University of Insubria, via Valleggio 11, Como 22100, Italy
| | - Rolf Erni
- Electron Microscopy Center, Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf 8600, Switzerland
| | - Sudip Chakraborty
- Materials Theory for Energy Scavenging (MATES) Lab, Harish-Chandra Research Institute (HRI) Allahabad, A C.I. of Homi Bhabha National Institute (HBNI), Chhatnag Road, Jhunsi, Prayagraj (Allahabad) 211019, India
| | - Antonietta Guagliardi
- Istituto di Cristallografia and To.Sca.Lab, Consiglio Nazionale delle Ricerche, via Valleggio 11, Como 22100, Italy
| | - Gabriele Rainò
- Laboratory for Thin Films and Photovoltaics, Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf 8600, Switzerland
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich 8093, Switzerland
| | - Maksym V Kovalenko
- Laboratory for Thin Films and Photovoltaics, Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf 8600, Switzerland
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich 8093, Switzerland
- SKKU Institute of Energy Science and Technology (SIEST), Sungkyunkwan University, Suwon 16419, South Korea
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4
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Yazdani N, Bodnarchuk MI, Bertolotti F, Masciocchi N, Fureraj I, Guzelturk B, Cotts BL, Zajac M, Rainò G, Jansen M, Boehme SC, Yarema M, Lin MF, Kozina M, Reid A, Shen X, Weathersby S, Wang X, Vauthey E, Guagliardi A, Kovalenko MV, Wood V, Lindenberg AM. Coupling to octahedral tilts in halide perovskite nanocrystals induces phonon-mediated attractive interactions between excitons. NATURE PHYSICS 2023; 20:47-53. [PMID: 38261834 PMCID: PMC10791581 DOI: 10.1038/s41567-023-02253-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Accepted: 09/15/2023] [Indexed: 01/25/2024]
Abstract
Understanding the origin of electron-phonon coupling in lead halide perovskites is key to interpreting and leveraging their optical and electronic properties. Here we show that photoexcitation drives a reduction of the lead-halide-lead bond angles, a result of deformation potential coupling to low-energy optical phonons. We accomplish this by performing femtosecond-resolved, optical-pump-electron-diffraction-probe measurements to quantify the lattice reorganization occurring as a result of photoexcitation in nanocrystals of FAPbBr3. Our results indicate a stronger coupling in FAPbBr3 than CsPbBr3. We attribute the enhanced coupling in FAPbBr3 to its disordered crystal structure, which persists down to cryogenic temperatures. We find the reorganizations induced by each exciton in a multi-excitonic state constructively interfere, giving rise to a coupling strength that scales quadratically with the exciton number. This superlinear scaling induces phonon-mediated attractive interactions between excitations in lead halide perovskites.
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Affiliation(s)
- Nuri Yazdani
- Department of Materials Science and Engineering, Stanford University, Stanford, CA USA
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA USA
- Department of Information Technology and Electrical Engineering, ETH Zürich, Zürich, Switzerland
| | - Maryna I. Bodnarchuk
- Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich, Switzerland
- Empa-Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland
| | - Federica Bertolotti
- Dipartimento di Scienza e Alta Tecnologia & To.Sca.Lab, Università dell’Insubria, Como, Italy
| | - Norberto Masciocchi
- Dipartimento di Scienza e Alta Tecnologia & To.Sca.Lab, Università dell’Insubria, Como, Italy
| | - Ina Fureraj
- Department of Physical Chemistry, University of Geneva, Geneva, Switzerland
| | - Burak Guzelturk
- X-ray Science Division, Argonne National Laboratory, Lemont, IL USA
| | - Benjamin L. Cotts
- Department of Materials Science and Engineering, Stanford University, Stanford, CA USA
- Department of Chemistry and Biochemistry, Middlebury College, Middlebury, VT USA
| | - Marc Zajac
- X-ray Science Division, Argonne National Laboratory, Lemont, IL USA
| | - Gabriele Rainò
- Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich, Switzerland
- Empa-Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland
| | - Maximilian Jansen
- Department of Information Technology and Electrical Engineering, ETH Zürich, Zürich, Switzerland
| | - Simon C. Boehme
- Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich, Switzerland
- Empa-Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland
| | - Maksym Yarema
- Chemistry and Materials Design Group, Department of Information Technology and Electrical Engineering, ETH Zürich, Zürich, Switzerland
| | - Ming-Fu Lin
- SLAC National Accelerator Laboratory, Menlo Park, CA USA
| | - Michael Kozina
- SLAC National Accelerator Laboratory, Menlo Park, CA USA
| | - Alexander Reid
- SLAC National Accelerator Laboratory, Menlo Park, CA USA
| | - Xiaozhe Shen
- SLAC National Accelerator Laboratory, Menlo Park, CA USA
| | | | - Xijie Wang
- SLAC National Accelerator Laboratory, Menlo Park, CA USA
| | - Eric Vauthey
- Department of Physical Chemistry, University of Geneva, Geneva, Switzerland
| | - Antonietta Guagliardi
- Istituto di Cristallografia & To.Sca.Lab, Consiglio Nazionale delle Ricerche, Como, Italy
| | - Maksym V. Kovalenko
- Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich, Switzerland
- Empa-Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland
| | - Vanessa Wood
- Department of Information Technology and Electrical Engineering, ETH Zürich, Zürich, Switzerland
| | - Aaron M. Lindenberg
- Department of Materials Science and Engineering, Stanford University, Stanford, CA USA
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA USA
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA USA
- Department of Photon Science, Stanford University and SLAC National Accelerator Laboratory, Menlo Park, CA USA
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5
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Guilloux V, Ghribi A, Majrab S, Margaillan F, Bernard M, Bernardot F, Legrand L, Lhuillier E, Boujdaria K, Chamarro M, Testelin C, Barisien T. Exciton Fine Structure of CsPbCl 3 Nanocrystals: An Interplay of Electron-Hole Exchange Interaction, Crystal Structure, Shape Anisotropy, and Dielectric Mismatch. ACS NANO 2023. [PMID: 37366625 DOI: 10.1021/acsnano.3c00772] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
In the semiconducting perovskite materials family, the cesium-lead-chloride compound (CsPbCl3) supports robust excitons characterized by a blue-shifted transition and the largest binding energy, thus presenting a high potential to achieve demanding solid-state room-temperature photonic or quantum devices. Here we study the fundamental emission properties of cubic-shaped colloidal CsPbCl3 nanocrystals (NCs), examining in particular individual NC responses using micro-photoluminescence in order to unveil the exciton fine structure (EFS) features. Within this work, NCs with average dimensions ⟨Lα⟩ ≈ 8 nm (α = x, y, z) are studied with a level of dispersity in their dimensions that allows disentangling the effects of size and shape anisotropy in the analysis. We find that most of the NCs exhibit an optical response under the form of a doublet with crossed polarized peaks and an average inter-bright-state splitting, ΔBB ≈ 1.53 meV, but triplets are also observed though being a minority. The origin of the EFS patterns is discussed in the frame of the electron-hole exchange model by taking into account the dielectric mismatch at the NC interface. The different features (large dispersity in the ΔBB values and occasional occurrence of triplets) are reconciled by incorporating a moderate degree of shape anisotropy, observed in the structural characterization, by preserving the relatively high degree of the NC lattice symmetry. The energy distance between the optically inactive state and the bright manifold, ΔBD, is also extracted from time-resolved photoluminescence measurements (ΔBD ≈ 10.7 meV), in good agreement with our theoretical predictions.
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Affiliation(s)
- Victor Guilloux
- Institut des NanoSciences de Paris, CNRS UMR 7588, Sorbonne Université, F-75005 Paris, France
| | - Amal Ghribi
- LR01ES15 Laboratoire de Physique des Matériaux: Structure et Propriétés, Faculté des Sciences de Bizerte, Université de Carthage, Bizerte 7021, Tunisia
| | - Silbé Majrab
- Institut des NanoSciences de Paris, CNRS UMR 7588, Sorbonne Université, F-75005 Paris, France
| | - Florent Margaillan
- Institut des NanoSciences de Paris, CNRS UMR 7588, Sorbonne Université, F-75005 Paris, France
| | - Mathieu Bernard
- Institut des NanoSciences de Paris, CNRS UMR 7588, Sorbonne Université, F-75005 Paris, France
| | - Frédérick Bernardot
- Institut des NanoSciences de Paris, CNRS UMR 7588, Sorbonne Université, F-75005 Paris, France
| | - Laurent Legrand
- Institut des NanoSciences de Paris, CNRS UMR 7588, Sorbonne Université, F-75005 Paris, France
| | - Emmanuel Lhuillier
- Institut des NanoSciences de Paris, CNRS UMR 7588, Sorbonne Université, F-75005 Paris, France
| | - Kaïs Boujdaria
- LR01ES15 Laboratoire de Physique des Matériaux: Structure et Propriétés, Faculté des Sciences de Bizerte, Université de Carthage, Bizerte 7021, Tunisia
| | - Maria Chamarro
- Institut des NanoSciences de Paris, CNRS UMR 7588, Sorbonne Université, F-75005 Paris, France
| | - Christophe Testelin
- Institut des NanoSciences de Paris, CNRS UMR 7588, Sorbonne Université, F-75005 Paris, France
| | - Thierry Barisien
- Institut des NanoSciences de Paris, CNRS UMR 7588, Sorbonne Université, F-75005 Paris, France
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6
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Amara MR, Said Z, Huo C, Pierret A, Voisin C, Gao W, Xiong Q, Diederichs C. Spectral Fingerprint of Quantum Confinement in Single CsPbBr 3 Nanocrystals. NANO LETTERS 2023; 23:3607-3613. [PMID: 37014137 DOI: 10.1021/acs.nanolett.3c00793] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Lead halide perovskite nanocrystals are promising materials for classical and quantum light emission. To understand these outstanding properties, a thorough analysis of the band-edge exciton emission is needed, which is not reachable in ensemble and room-temperature studies because of broadening effects. Here, we report on a cryogenic-temperature study of the photoluminescence of single CsPbBr3 nanocrystals in the intermediate quantum confinement regime. We reveal the size-dependence of the spectral features observed: the bright triplet exciton energy splittings, the trion and biexciton binding energies, and the optical phonon replica spectrum. In addition, we show that bright triplet energy splittings are consistent with a pure exchange model and that the variety of polarization properties and spectra recorded can be rationalized simply by considering the orientation of the emitting dipoles and the populations of the emitting states.
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Affiliation(s)
- Mohamed-Raouf Amara
- Laboratoire de Physique de l'École Normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université Paris-Cité, F-75005 Paris, France
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371 Singapore
| | - Zakaria Said
- Laboratoire de Physique de l'École Normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université Paris-Cité, F-75005 Paris, France
| | - Caixia Huo
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371 Singapore
| | - Aurélie Pierret
- Laboratoire de Physique de l'École Normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université Paris-Cité, F-75005 Paris, France
| | - Christophe Voisin
- Laboratoire de Physique de l'École Normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université Paris-Cité, F-75005 Paris, France
| | - Weibo Gao
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371 Singapore
| | - Qihua Xiong
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
- Frontier Science Center for Quantum Information, Beijing 100084, P. R. China
- Collaborative Innovation Center of Quantum Matter, Beijing 100084, P. R. China
- Beijing Academy of Quantum Information Sciences, Beijing 100193, P. R. China
| | - Carole Diederichs
- Laboratoire de Physique de l'École Normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université Paris-Cité, F-75005 Paris, France
- Institut Universitaire de France (IUF), 75231 Paris, France
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7
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Semenikhin OA, Kucheriv OI, Sacarescu L, Shova S, Gural'skiy IA. Quantum dots assembled from an aziridinium based hybrid perovskite displaying tunable luminescence. Chem Commun (Camb) 2023; 59:3566-3569. [PMID: 36880308 DOI: 10.1039/d2cc06791a] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
3D hybrid perovskites based upon small organic cations gave start to a new intensively growing class of semiconducting materials. Here we report on the elaboration of quantum dots of a recently emerged new perovskite (AzrH)PbBr3 (AzrH = aziridinium cation). By employing the antisolvent precipitation technique and stabilization with a cationic surfactant we succeeded in obtaining quantum dots that display tunable luminescence. This piece of work shows the perspective of aziridinium-based materials for the elaboration of advanced photonic nanostructures.
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Affiliation(s)
- Oleksandr A Semenikhin
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska St. 64, Kyiv, 01601, Ukraine.
| | - Olesia I Kucheriv
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska St. 64, Kyiv, 01601, Ukraine.
| | - Liviu Sacarescu
- Department of Inorganic Polymers, Petru Poni Institute of Macromolecular Chemistry, Aleea Grigore Ghica Voda 41-A, Iasi, 700487, Romania
| | - Sergiu Shova
- Department of Inorganic Polymers, Petru Poni Institute of Macromolecular Chemistry, Aleea Grigore Ghica Voda 41-A, Iasi, 700487, Romania
| | - Il'ya A Gural'skiy
- Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska St. 64, Kyiv, 01601, Ukraine.
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8
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Sheikh T, Maqbool S, Rajput PK, Mandal P, Nag A. Effect of chirality on the optical properties of layered hybrid perovskite R- and S-α-methylbenzylammonium lead iodide. Chem Commun (Camb) 2022; 58:7650-7653. [PMID: 35723535 DOI: 10.1039/d2cc01811j] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The introduction of chirality in layered hybrid perovskites breaks the symmetry of their inorganic sub-lattices. Consequently, they show intriguing linear and non-linear optical properties. Here we explore the effect of chirality on the excitonic photoluminescence of chiral (R- and S-α-MBA)2PbI4 (MBA: methylbenzylammonium) at cryogenic temperatures. The induced chirality splits the excitonic emissions below 150 K. Additionally, (R- and S-α-MBA)2PbI4 show wavelength-tunable second harmonic generation (SHG) that depends strongly on the polarization angle of the incident light.
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Affiliation(s)
- Tariq Sheikh
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune 411008, India.
| | - Shabnum Maqbool
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune 411008, India.
| | - Parikshit Kumar Rajput
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune 411008, India.
| | - Pankaj Mandal
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune 411008, India.
| | - Angshuman Nag
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune 411008, India.
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9
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Zhu C, Marczak M, Feld L, Boehme SC, Bernasconi C, Moskalenko A, Cherniukh I, Dirin D, Bodnarchuk MI, Kovalenko MV, Rainò G. Room-Temperature, Highly Pure Single-Photon Sources from All-Inorganic Lead Halide Perovskite Quantum Dots. NANO LETTERS 2022; 22:3751-3760. [PMID: 35467890 PMCID: PMC9101069 DOI: 10.1021/acs.nanolett.2c00756] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 03/28/2022] [Indexed: 05/08/2023]
Abstract
Attaining pure single-photon emission is key for many quantum technologies, from optical quantum computing to quantum key distribution and quantum imaging. The past 20 years have seen the development of several solid-state quantum emitters, but most of them require highly sophisticated techniques (e.g., ultrahigh vacuum growth methods and cryostats for low-temperature operation). The system complexity may be significantly reduced by employing quantum emitters capable of working at room temperature. Here, we present a systematic study across ∼170 photostable single CsPbX3 (X: Br and I) colloidal quantum dots (QDs) of different sizes and compositions, unveiling that increasing quantum confinement is an effective strategy for maximizing single-photon purity due to the suppressed biexciton quantum yield. Leveraging the latter, we achieve 98% single-photon purity (g(2)(0) as low as 2%) from a cavity-free, nonresonantly excited single 6.6 nm CsPbI3 QDs, showcasing the great potential of CsPbX3 QDs as room-temperature highly pure single-photon sources for quantum technologies.
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Affiliation(s)
- Chenglian Zhu
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Malwina Marczak
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Leon Feld
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Simon C. Boehme
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Caterina Bernasconi
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Anastasiia Moskalenko
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Ihor Cherniukh
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Dmitry Dirin
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Maryna I. Bodnarchuk
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Maksym V. Kovalenko
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Gabriele Rainò
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
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10
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Schmitz A, Montanarella F, Schaberg LL, Abdelbaky M, Kovalenko MV, Bacher G. Optical Probing of Crystal Lattice Configurations in Single CsPbBr 3 Nanoplatelets. NANO LETTERS 2021; 21:9085-9092. [PMID: 34672607 DOI: 10.1021/acs.nanolett.1c02775] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Quantum-confined nanostructures of CsPbBr3 with luminescence quantum efficiencies approaching unity have shown tremendous potential for lighting and quantum light applications. In contrast to CsPbBr3 quantum dots, where the fine structure of the emissive exciton state has been intensely discussed, the relationship among lattice orientation, shape anisotropy, and exciton fine structure in lead halide nanoplatelets has not yet been established. In this work, we investigate the fine structure of the bright triplet exciton of individual CsPbBr3 nanoplatelets by polarization-resolved micro- and magnetophotoluminescence spectroscopy at liquid helium temperature and find a large zero-field splitting of up to 2.5 meV. A unique relation between the crystal structure and the photoluminescence emission confirms the existence of two distinct crystal configurations in such nanoplatelets with different alignments of the crystal axes with respect to the nanoplatelet facets. Polarization-resolved experiments eventually allow us to determine the absolute orientation of an individual nanoplatelet on the substrate purely by optical means.
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Affiliation(s)
- Alexander Schmitz
- Werkstoffe der Elektrotechnik & CENIDE, Universität Duisburg-Essen, Bismarckstraße 81, 47057 Duisburg, Germany
| | - Federico Montanarella
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1, Zürich CH-8093, Switzerland
- Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, Dübendorf CH-8600, Switzerland
| | - L Leander Schaberg
- Werkstoffe der Elektrotechnik & CENIDE, Universität Duisburg-Essen, Bismarckstraße 81, 47057 Duisburg, Germany
| | - Mohamed Abdelbaky
- Werkstoffe der Elektrotechnik & CENIDE, Universität Duisburg-Essen, Bismarckstraße 81, 47057 Duisburg, Germany
| | - Maksym V Kovalenko
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1, Zürich CH-8093, Switzerland
- Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, Dübendorf CH-8600, Switzerland
| | - Gerd Bacher
- Werkstoffe der Elektrotechnik & CENIDE, Universität Duisburg-Essen, Bismarckstraße 81, 47057 Duisburg, Germany
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11
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Cho K, Yamada T, Tahara H, Tadano T, Suzuura H, Saruyama M, Sato R, Teranishi T, Kanemitsu Y. Luminescence Fine Structures in Single Lead Halide Perovskite Nanocrystals: Size Dependence of the Exciton-Phonon Coupling. NANO LETTERS 2021; 21:7206-7212. [PMID: 34415169 DOI: 10.1021/acs.nanolett.1c02122] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Lead halide perovskite nanocrystals (NCs) have superior photoluminescence (PL) properties, such as high PL quantum yields and wide PL wavelength tunability, for optoelectronic applications. Here, we report the PL spectra of single formamidinium lead halide perovskite FAPbX3 (X = Br, I) NCs examined by single-dot spectroscopy at low temperature. We found four PL peaks in the low-energy region below the strong exciton PL peak that originate from two longitudinal-optical (LO) phonon replicas of the exciton PL, biexcitons, and charged excitons (trions). The binding energies of the biexcitons and trions become larger as the NCs decrease in size. The LO phonon energies show no size dependence, but the Huang-Rhys factors, which reflect the strength of the exciton-phonon coupling, become larger for smaller NCs. Our findings provide important insights into the exciton properties of perovskite NCs.
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Affiliation(s)
- Kenichi Cho
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Takumi Yamada
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Hirokazu Tahara
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Terumasa Tadano
- National Institute for Materials Science, Tsukuba, Ibaraki 305-0047, Japan
| | - Hidekatsu Suzuura
- Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
| | - Masaki Saruyama
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Ryota Sato
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Toshiharu Teranishi
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Yoshihiko Kanemitsu
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
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12
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Shcherbakov-Wu W, Sercel PC, Krieg F, Kovalenko MV, Tisdale WA. Temperature-Independent Dielectric Constant in CsPbBr 3 Nanocrystals Revealed by Linear Absorption Spectroscopy. J Phys Chem Lett 2021; 12:8088-8095. [PMID: 34406780 DOI: 10.1021/acs.jpclett.1c01822] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Fundamental photophysical behavior in CsPbBr3 nanocrystals (NCs), especially at low temperatures, is under active investigation. While many studies have reported temperature-dependent photoluminescence, comparatively few have focused on understanding the temperature-dependent absorption spectrum. Here, we report the temperature-dependent (35-300 K) absorption and photoluminescence spectra of zwitterionic ligand-capped CsPbBr3 NCs with four different edge lengths (d = 4.9, 7.2, 8.1, and 13.2 nm). The two lowest-energy excitonic transitions are quantitatively modeled over the full temperature range within the effective mass approximation considering the quasi-cubic NC shape and nonparabolicity of the electronic bands. Significantly, we find that the effective dielectric constant determined from the best fit model parameters is independent of temperature. Moreover, we observe a temperature-dependent Stokes shift that saturates at a finite value of Δ ≈ 10 meV at low temperatures for d = 7.2 nm NCs, which is absent in bulk CsPbBr3 films. Overall, these observations highlight differences between the temperature-dependent dielectric behavior of NC and bulk perovskites and point to the need for a more unified theoretical understanding of absorption and emission in halide perovskites.
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Affiliation(s)
- Wenbi Shcherbakov-Wu
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, United States
| | - Peter C Sercel
- Center for Hybrid Organic Inorganic Semiconductors for Energy, Golden, Colorado 80401, United States
- Department of Applied Physics and Materials Science, California Institute of Technology, Pasadena, California 91125, United States
| | - Franziska Krieg
- Department of Chemistry and Applied Bioscience, ETH Zürich, 8093 Zürich, Switzerland
- Laboratory for Thin Films and Photovoltaics and Laboratory for Transport at Nanoscale Interfaces, Empa-Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland
| | - Maksym V Kovalenko
- Department of Chemistry and Applied Bioscience, ETH Zürich, 8093 Zürich, Switzerland
- Laboratory for Thin Films and Photovoltaics and Laboratory for Transport at Nanoscale Interfaces, Empa-Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland
| | - William A Tisdale
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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13
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Dey A, Ye J, De A, Debroye E, Ha SK, Bladt E, Kshirsagar AS, Wang Z, Yin J, Wang Y, Quan LN, Yan F, Gao M, Li X, Shamsi J, Debnath T, Cao M, Scheel MA, Kumar S, Steele JA, Gerhard M, Chouhan L, Xu K, Wu XG, Li Y, Zhang Y, Dutta A, Han C, Vincon I, Rogach AL, Nag A, Samanta A, Korgel BA, Shih CJ, Gamelin DR, Son DH, Zeng H, Zhong H, Sun H, Demir HV, Scheblykin IG, Mora-Seró I, Stolarczyk JK, Zhang JZ, Feldmann J, Hofkens J, Luther JM, Pérez-Prieto J, Li L, Manna L, Bodnarchuk MI, Kovalenko MV, Roeffaers MBJ, Pradhan N, Mohammed OF, Bakr OM, Yang P, Müller-Buschbaum P, Kamat PV, Bao Q, Zhang Q, Krahne R, Galian RE, Stranks SD, Bals S, Biju V, Tisdale WA, Yan Y, Hoye RLZ, Polavarapu L. State of the Art and Prospects for Halide Perovskite Nanocrystals. ACS NANO 2021; 15:10775-10981. [PMID: 34137264 PMCID: PMC8482768 DOI: 10.1021/acsnano.0c08903] [Citation(s) in RCA: 372] [Impact Index Per Article: 124.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 05/04/2021] [Indexed: 05/10/2023]
Abstract
Metal-halide perovskites have rapidly emerged as one of the most promising materials of the 21st century, with many exciting properties and great potential for a broad range of applications, from photovoltaics to optoelectronics and photocatalysis. The ease with which metal-halide perovskites can be synthesized in the form of brightly luminescent colloidal nanocrystals, as well as their tunable and intriguing optical and electronic properties, has attracted researchers from different disciplines of science and technology. In the last few years, there has been a significant progress in the shape-controlled synthesis of perovskite nanocrystals and understanding of their properties and applications. In this comprehensive review, researchers having expertise in different fields (chemistry, physics, and device engineering) of metal-halide perovskite nanocrystals have joined together to provide a state of the art overview and future prospects of metal-halide perovskite nanocrystal research.
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Grants
- from U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division
- Ministry of Education, Culture, Sports, Science and Technology
- European Research Council under the European Unionâ??s Horizon 2020 research and innovation programme (HYPERION)
- Ministry of Education - Singapore
- FLAG-ERA JTC2019 project PeroGas.
- Deutsche Forschungsgemeinschaft
- Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences of the U.S. Department of Energy
- EPSRC
- iBOF funding
- Agencia Estatal de Investigaci�ón, Ministerio de Ciencia, Innovaci�ón y Universidades
- National Research Foundation Singapore
- National Natural Science Foundation of China
- Croucher Foundation
- US NSF
- Fonds Wetenschappelijk Onderzoek
- National Science Foundation
- Royal Society and Tata Group
- Department of Science and Technology, Ministry of Science and Technology
- Swiss National Science Foundation
- Natural Science Foundation of Shandong Province, China
- Research 12210 Foundation?Flanders
- Japan International Cooperation Agency
- Ministry of Science and Innovation of Spain under Project STABLE
- Generalitat Valenciana via Prometeo Grant Q-Devices
- VetenskapsrÃÂ¥det
- Natural Science Foundation of Jiangsu Province
- KU Leuven
- Knut och Alice Wallenbergs Stiftelse
- Generalitat Valenciana
- Agency for Science, Technology and Research
- Ministerio de EconomÃÂa y Competitividad
- Royal Academy of Engineering
- Hercules Foundation
- China Association for Science and Technology
- U.S. Department of Energy
- Alexander von Humboldt-Stiftung
- Wenner-Gren Foundation
- Welch Foundation
- Vlaamse regering
- European Commission
- Bayerisches Staatsministerium für Wissenschaft, Forschung und Kunst
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Affiliation(s)
- Amrita Dey
- Chair for
Photonics and Optoelectronics, Nano-Institute Munich, Department of
Physics, Ludwig-Maximilians-Universität
(LMU), Königinstrasse 10, 80539 Munich, Germany
| | - Junzhi Ye
- Cavendish
Laboratory, University of Cambridge, 19 JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
| | - Apurba De
- School of
Chemistry, University of Hyderabad, Hyderabad 500 046, India
| | - Elke Debroye
- Department
of Chemistry, KU Leuven, 3001 Leuven, Belgium
| | - Seung Kyun Ha
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, Cambridge, Massachusetts 02139, United States
| | - Eva Bladt
- EMAT, University
of Antwerp, Groenenborgerlaan
171, 2020 Antwerp, Belgium
- NANOlab Center
of Excellence, University of Antwerp, 2020 Antwerp, Belgium
| | - Anuraj S. Kshirsagar
- Department
of Chemistry, Indian Institute of Science
Education and Research (IISER), Pune 411008, India
| | - Ziyu Wang
- School
of
Science and Technology for Optoelectronic Information ,Yantai University, Yantai, Shandong Province 264005, China
| | - Jun Yin
- Division
of Physical Science and Engineering, King
Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
- CINBIO,
Universidade de Vigo, Materials Chemistry
and Physics group, Departamento de Química Física, Campus Universitario As Lagoas,
Marcosende, 36310 Vigo, Spain
- Advanced
Membranes and Porous Materials Center, King
Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Yue Wang
- MIIT Key
Laboratory of Advanced Display Materials and Devices, Institute of
Optoelectronics & Nanomaterials, College of Materials Science
and Engineering, Nanjing University of Science
and Technology, Nanjing 210094, China
| | - Li Na Quan
- Department
of Chemistry, University of California,
Berkeley, Berkeley, California 94720, United States
- Materials
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
| | - Fei Yan
- LUMINOUS!
Center of Excellence for Semiconductor Lighting and Displays, TPI-The
Photonics Institute, School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798
| | - Mengyu Gao
- Materials
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
- Department
of Materials Science and Engineering, University
of California, Berkeley, California 94720, United States
| | - Xiaoming Li
- MIIT Key
Laboratory of Advanced Display Materials and Devices, Institute of
Optoelectronics & Nanomaterials, College of Materials Science
and Engineering, Nanjing University of Science
and Technology, Nanjing 210094, China
| | - Javad Shamsi
- Cavendish
Laboratory, University of Cambridge, 19 JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
| | - Tushar Debnath
- Chair for
Photonics and Optoelectronics, Nano-Institute Munich, Department of
Physics, Ludwig-Maximilians-Universität
(LMU), Königinstrasse 10, 80539 Munich, Germany
| | - Muhan Cao
- Institute
of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory
for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China
| | - Manuel A. Scheel
- Lehrstuhl
für Funktionelle Materialien, Physik Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
| | - Sudhir Kumar
- Institute
for Chemical and Bioengineering, Department of Chemistry and Applied
Biosciences, ETH-Zurich, CH-8093 Zürich, Switzerland
| | - Julian A. Steele
- MACS Department
of Microbial and Molecular Systems, KU Leuven, 3001 Leuven, Belgium
| | - Marina Gerhard
- Chemical
Physics and NanoLund Lund University, PO Box 124, 22100 Lund, Sweden
| | - Lata Chouhan
- Graduate
School of Environmental Science and Research Institute for Electronic
Science, Hokkaido University, Sapporo, Hokkaido 001-0020, Japan
| | - Ke Xu
- Department
of Chemistry and Biochemistry, University
of California, Santa Cruz, California 95064, United States
- Multiscale
Crystal Materials Research Center, Shenzhen Institute of Advanced
Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Xian-gang Wu
- Beijing
Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems,
School of Materials Science & Engineering, Beijing Institute of Technology, 5 Zhongguancun South Street, Haidian
District, Beijing 100081, China
| | - Yanxiu Li
- Department
of Materials Science and Engineering, and Centre for Functional Photonics
(CFP), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong S.A.R.
| | - Yangning Zhang
- McKetta
Department of Chemical Engineering and Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712-1062, United States
| | - Anirban Dutta
- School
of Materials Sciences, Indian Association
for the Cultivation of Science, Kolkata 700032, India
| | - Chuang Han
- Department
of Chemistry and Biochemistry, San Diego
State University, San Diego, California 92182, United States
| | - Ilka Vincon
- Chair for
Photonics and Optoelectronics, Nano-Institute Munich, Department of
Physics, Ludwig-Maximilians-Universität
(LMU), Königinstrasse 10, 80539 Munich, Germany
| | - Andrey L. Rogach
- Department
of Materials Science and Engineering, and Centre for Functional Photonics
(CFP), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong S.A.R.
| | - Angshuman Nag
- Department
of Chemistry, Indian Institute of Science
Education and Research (IISER), Pune 411008, India
| | - Anunay Samanta
- School of
Chemistry, University of Hyderabad, Hyderabad 500 046, India
| | - Brian A. Korgel
- McKetta
Department of Chemical Engineering and Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712-1062, United States
| | - Chih-Jen Shih
- Institute
for Chemical and Bioengineering, Department of Chemistry and Applied
Biosciences, ETH-Zurich, CH-8093 Zürich, Switzerland
| | - Daniel R. Gamelin
- Department
of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Dong Hee Son
- Department
of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Haibo Zeng
- MIIT Key
Laboratory of Advanced Display Materials and Devices, Institute of
Optoelectronics & Nanomaterials, College of Materials Science
and Engineering, Nanjing University of Science
and Technology, Nanjing 210094, China
| | - Haizheng Zhong
- Beijing
Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems,
School of Materials Science & Engineering, Beijing Institute of Technology, 5 Zhongguancun South Street, Haidian
District, Beijing 100081, China
| | - Handong Sun
- Division
of Physics and Applied Physics, School of Physical and Mathematical
Sciences, Nanyang Technological University, Singapore 637371
- Centre
for Disruptive Photonic Technologies (CDPT), Nanyang Technological University, Singapore 637371
| | - Hilmi Volkan Demir
- LUMINOUS!
Center of Excellence for Semiconductor Lighting and Displays, TPI-The
Photonics Institute, School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798
- Division
of Physics and Applied Physics, School of Physical and Mathematical
Sciences, Nanyang Technological University, Singapore 639798
- Department
of Electrical and Electronics Engineering, Department of Physics,
UNAM-Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
| | - Ivan G. Scheblykin
- Chemical
Physics and NanoLund Lund University, PO Box 124, 22100 Lund, Sweden
| | - Iván Mora-Seró
- Institute
of Advanced Materials (INAM), Universitat
Jaume I, 12071 Castelló, Spain
| | - Jacek K. Stolarczyk
- Chair for
Photonics and Optoelectronics, Nano-Institute Munich, Department of
Physics, Ludwig-Maximilians-Universität
(LMU), Königinstrasse 10, 80539 Munich, Germany
| | - Jin Z. Zhang
- Department
of Chemistry and Biochemistry, University
of California, Santa Cruz, California 95064, United States
| | - Jochen Feldmann
- Chair for
Photonics and Optoelectronics, Nano-Institute Munich, Department of
Physics, Ludwig-Maximilians-Universität
(LMU), Königinstrasse 10, 80539 Munich, Germany
| | - Johan Hofkens
- Department
of Chemistry, KU Leuven, 3001 Leuven, Belgium
- Max Planck
Institute for Polymer Research, Mainz 55128, Germany
| | - Joseph M. Luther
- National
Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Julia Pérez-Prieto
- Institute
of Molecular Science, University of Valencia, c/Catedrático José
Beltrán 2, Paterna, Valencia 46980, Spain
| | - Liang Li
- School
of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Liberato Manna
- Nanochemistry
Department, Istituto Italiano di Tecnologia, Via Morego 30, Genova 16163, Italy
| | - Maryna I. Bodnarchuk
- Institute
of Inorganic Chemistry and § Institute of Chemical and Bioengineering,
Department of Chemistry and Applied Bioscience, ETH Zurich, Vladimir
Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa−Swiss
Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Maksym V. Kovalenko
- Institute
of Inorganic Chemistry and § Institute of Chemical and Bioengineering,
Department of Chemistry and Applied Bioscience, ETH Zurich, Vladimir
Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa−Swiss
Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | | | - Narayan Pradhan
- School
of Materials Sciences, Indian Association
for the Cultivation of Science, Kolkata 700032, India
| | - Omar F. Mohammed
- Advanced
Membranes and Porous Materials Center, King
Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
- KAUST Catalysis
Center, King Abdullah University of Science
and Technology, Thuwal 23955-6900, Kingdom of Saudi
Arabia
| | - Osman M. Bakr
- Division
of Physical Science and Engineering, King
Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
- Advanced
Membranes and Porous Materials Center, King
Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Peidong Yang
- Department
of Chemistry, University of California,
Berkeley, Berkeley, California 94720, United States
- Materials
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
- Department
of Materials Science and Engineering, University
of California, Berkeley, California 94720, United States
- Kavli
Energy NanoScience Institute, Berkeley, California 94720, United States
| | - Peter Müller-Buschbaum
- Lehrstuhl
für Funktionelle Materialien, Physik Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
- Heinz Maier-Leibnitz
Zentrum (MLZ), Technische Universität
München, Lichtenbergstr. 1, D-85748 Garching, Germany
| | - Prashant V. Kamat
- Notre Dame
Radiation Laboratory, Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Qiaoliang Bao
- Department
of Materials Science and Engineering and ARC Centre of Excellence
in Future Low-Energy Electronics Technologies (FLEET), Monash University, Clayton, Victoria 3800, Australia
| | - Qiao Zhang
- Institute
of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory
for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China
| | - Roman Krahne
- Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Raquel E. Galian
- School
of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Samuel D. Stranks
- Cavendish
Laboratory, University of Cambridge, 19 JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
- Department
of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge CB3 0AS, United Kingdom
| | - Sara Bals
- EMAT, University
of Antwerp, Groenenborgerlaan
171, 2020 Antwerp, Belgium
- NANOlab Center
of Excellence, University of Antwerp, 2020 Antwerp, Belgium
| | - Vasudevanpillai Biju
- Graduate
School of Environmental Science and Research Institute for Electronic
Science, Hokkaido University, Sapporo, Hokkaido 001-0020, Japan
| | - William A. Tisdale
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, Cambridge, Massachusetts 02139, United States
| | - Yong Yan
- Department
of Chemistry and Biochemistry, San Diego
State University, San Diego, California 92182, United States
| | - Robert L. Z. Hoye
- Department
of Materials, Imperial College London, Exhibition Road, London SW7 2AZ, United Kingdom
| | - Lakshminarayana Polavarapu
- Chair for
Photonics and Optoelectronics, Nano-Institute Munich, Department of
Physics, Ludwig-Maximilians-Universität
(LMU), Königinstrasse 10, 80539 Munich, Germany
- CINBIO,
Universidade de Vigo, Materials Chemistry
and Physics group, Departamento de Química Física, Campus Universitario As Lagoas,
Marcosende, 36310 Vigo, Spain
| |
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14
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Revealing the Exciton Fine Structure in Lead Halide Perovskite Nanocrystals. NANOMATERIALS 2021; 11:nano11041058. [PMID: 33924196 PMCID: PMC8074593 DOI: 10.3390/nano11041058] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/14/2021] [Accepted: 04/16/2021] [Indexed: 12/25/2022]
Abstract
Lead-halide perovskite nanocrystals (NCs) are attractive nano-building blocks for photovoltaics and optoelectronic devices as well as quantum light sources. Such developments require a better knowledge of the fundamental electronic and optical properties of the band-edge exciton, whose fine structure has long been debated. In this review, we give an overview of recent magneto-optical spectroscopic studies revealing the entire excitonic fine structure and relaxation mechanisms in these materials, using a single-NC approach to get rid of their inhomogeneities in morphology and crystal structure. We highlight the prominent role of the electron-hole exchange interaction in the order and splitting of the bright triplet and dark singlet exciton sublevels and discuss the effects of size, shape anisotropy and dielectric screening on the fine structure. The spectral and temporal manifestations of thermal mixing between bright and dark excitons allows extracting the specific nature and strength of the exciton–phonon coupling, which provides an explanation for their remarkably bright photoluminescence at low temperature although the ground exciton state is optically inactive. We also decipher the spectroscopic characteristics of other charge complexes whose recombination contributes to photoluminescence. With the rich knowledge gained from these experiments, we provide some perspectives on perovskite NCs as quantum light sources.
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15
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Exciton-acoustic phonon coupling revealed by resonant excitation of single perovskite nanocrystals. Nat Commun 2021; 12:2192. [PMID: 33850150 PMCID: PMC8044187 DOI: 10.1038/s41467-021-22486-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 03/16/2021] [Indexed: 11/08/2022] Open
Abstract
Single perovskite nanocrystals have attracted great research attention very recently due to their potential quantum-information applications, which critically depend on the development of powerful optical techniques to resolve delicate exciton photophysics. Here we have realized resonant and near-resonant excitations of single perovskite CsPbI3 nanocrystals, with the scattered laser light contributing to only ~10% of the total collected signals. This allows us to estimate an ultranarrow photoluminescence excitation linewidth of ~11.32 µeV for the emission state of a single CsPbI3 nanocrystal, corresponding to an exciton dephasing time of ~116.29 ps. Meanwhile, size-quantized acoustic phonons can be resolved from a single CsPbI3 nanocrystal, whose coupling with the exciton is proposed to arise from the piezoelectric potential. The ability to collect resonance fluorescence from single CsPbI3 nanocrystals, with the subsequent revelation of exciton-acoustic phonon coupling, has marked a critical step towards their steady advancement into superior quantum-light sources. In order to develop perovskite nanocrystals as a single-photon source, there is a need to understand the complex exciton photo-physics. Here, the authors employ resonant and near-resonant excitation technique to study single CsPbI3 nanocrystal that allows them to probe the continuous and size-quantised acoustic-phonon modes.
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16
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Rubino A, Francisco-López A, Barker AJ, Petrozza A, Calvo ME, Goñi AR, Míguez H. Disentangling Electron-Phonon Coupling and Thermal Expansion Effects in the Band Gap Renormalization of Perovskite Nanocrystals. J Phys Chem Lett 2021; 12:569-575. [PMID: 33382272 DOI: 10.1021/acs.jpclett.0c03042] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The complex electron-phonon interaction occurring in bulk lead halide perovskites gives rise to anomalous temperature dependences, like the widening of the electronic band gap as temperature increases. However, possible confinement effects on the electron-phonon coupling in the nanocrystalline version of these materials remain unexplored. Herein, we study the temperature (ranging from 80 K to ambient) and hydrostatic pressure (from atmospheric to 0.6 GPa) dependence of the photoluminescence of ligand-free methylammonium lead triiodide nanocrystals with controlled sizes embedded in a porous silica matrix. This analysis allowed us to disentangle the effects of thermal expansion and electron-phonon interaction. As the crystallite size decreases, the electron-phonon contribution to the gap renormalization gains in importance. We provide a plausible explanation for this observation in terms of quantum confinement effects, showing that neither thermal expansion nor electron-phonon coupling effects may be disregarded when analyzing the temperature dependence of the optoelectronic properties of perovskite lead halide nanocrystals.
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Affiliation(s)
- Andrea Rubino
- Institute of Materials Science of Seville, Spanish National Research Council-University of Seville, C/Américo Vespucio 49, 41092 Seville, Spain
| | - Adrián Francisco-López
- Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, 08193 Bellaterra, Spain
| | - Alex J Barker
- Center for Nano Science and Technology @PoliMi, Instituto Italiano di Tecnologia, via G. Pascoli 70/3, 20133 Milan, Italy
| | - Annamaria Petrozza
- Center for Nano Science and Technology @PoliMi, Instituto Italiano di Tecnologia, via G. Pascoli 70/3, 20133 Milan, Italy
| | - Mauricio E Calvo
- Institute of Materials Science of Seville, Spanish National Research Council-University of Seville, C/Américo Vespucio 49, 41092 Seville, Spain
| | - Alejandro R Goñi
- Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, 08193 Bellaterra, Spain
- ICREA, Passeig Lluís Companys 23, 08010 Barcelona, Spain
| | - Hernán Míguez
- Institute of Materials Science of Seville, Spanish National Research Council-University of Seville, C/Américo Vespucio 49, 41092 Seville, Spain
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17
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Wang X, Wang Q, Chai Z, Wu W. The thermal stability of FAPbBr 3 nanocrystals from temperature-dependent photoluminescence and first-principles calculations. RSC Adv 2020; 10:44373-44381. [PMID: 35517129 PMCID: PMC9058516 DOI: 10.1039/d0ra07668f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 11/10/2020] [Indexed: 01/23/2023] Open
Abstract
The temperature dependence of FAPbBr3 perovskite nanocrystals (PNCs) is investigated experimentally by steady-state and time-resolved photoluminescence (PL) spectroscopies. With the temperature increase, photon energies of line width and emission peak become larger due to stronger exciton-phonon coupling. Furthermore, theoretical calculations of first-principles simulations are used to estimate comparatively the thermal stability of typical FAPbBr3 PNCs. It is found that the PL peaks of PNCs slightly change with increasing temperature below 175 K and then blueshift steeply decreases rapidly till 400 K, which is related to phase transition from orthorhombic to tetragonal and cubic phase. The simulated results show the PL and the crystal structure of FAPbBr3 are largely dependent on the temperature. With higher temperature, the photon energy of the PL peak becomes larger, and the calculated band gap of FAPbBr3 is about 2.15 eV at 80 K, which is in good agreement with the experimental results. It is confirmed that temperature-dependent PL is composed of a band-edge exciton state and trapping state emission. The results obtained will be of certain significance to further expand other hybrid organometal perovskite materials.
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Affiliation(s)
- Xiaozhe Wang
- School of Electronic Engineering, Heilongjiang University Harbin Heilongjiang 150080 China
| | - Qi Wang
- School of Electronic Engineering, Heilongjiang University Harbin Heilongjiang 150080 China
| | - Zhijun Chai
- School of Electronic Engineering, Heilongjiang University Harbin Heilongjiang 150080 China
| | - Wenzhi Wu
- School of Electronic Engineering, Heilongjiang University Harbin Heilongjiang 150080 China
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18
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Handa T, Yamada T, Nagai M, Kanemitsu Y. Phonon, thermal, and thermo-optical properties of halide perovskites. Phys Chem Chem Phys 2020; 22:26069-26087. [PMID: 33174887 DOI: 10.1039/d0cp04426a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Metal halide perovskites are semiconductors with many fascinating characteristics and their widespread use in optoelectronic devices has been expected. High-quality thin films and single crystals can be fabricated by simple chemical solution processes and their fundamental electrical, optical, and thermal properties can be changed significantly by compositional substitution, in particular halogen ions. In this perspective, we provide an overview of phonon and thermal properties of metal halide perovskites, which play a decisive role in determining device performance. After a brief introduction to fundamental material properties, longitudinal-optical phonons and unusual thermal properties of metal halide perovskites are discussed. Remarkably, they possess very low thermal conductivities and very large thermal expansion coefficients despite their crystalline nature. In line with these discussions, we present optical properties governed by the strong electron-phonon interactions and the unusual thermal properties. By showing their unique thermo-optic responses and novel application examples, we highlight some aspects of the unusual thermal properties.
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Affiliation(s)
- Taketo Handa
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan.
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19
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Peng S, Wei Q, Wang B, Zhang Z, Yang H, Pang G, Wang K, Xing G, Sun XW, Tang Z. Suppressing Strong Exciton–Phonon Coupling in Blue Perovskite Nanoplatelet Solids by Binary Systems. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202009193] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Shaomin Peng
- Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials Engineering University of Macau Macao SAR 999078 China
| | - Qi Wei
- Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials Engineering University of Macau Macao SAR 999078 China
| | - Bingzhe Wang
- Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials Engineering University of Macau Macao SAR 999078 China
| | - Zhipeng Zhang
- Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials Engineering University of Macau Macao SAR 999078 China
| | - Hongcheng Yang
- Shenzhen Key Laboratory for Advanced Quantum Dot Displays and Lighting Department of Electrical & Electronic Engineering Southern University of Science and Technology Shenzhen 518055 China
| | - Guotao Pang
- Shenzhen Key Laboratory for Advanced Quantum Dot Displays and Lighting Department of Electrical & Electronic Engineering Southern University of Science and Technology Shenzhen 518055 China
| | - Kai Wang
- Shenzhen Key Laboratory for Advanced Quantum Dot Displays and Lighting Department of Electrical & Electronic Engineering Southern University of Science and Technology Shenzhen 518055 China
| | - Guichuan Xing
- Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials Engineering University of Macau Macao SAR 999078 China
| | - Xiao Wei Sun
- Shenzhen Key Laboratory for Advanced Quantum Dot Displays and Lighting Department of Electrical & Electronic Engineering Southern University of Science and Technology Shenzhen 518055 China
| | - Zikang Tang
- Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials Engineering University of Macau Macao SAR 999078 China
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20
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Peng S, Wei Q, Wang B, Zhang Z, Yang H, Pang G, Wang K, Xing G, Sun XW, Tang Z. Suppressing Strong Exciton–Phonon Coupling in Blue Perovskite Nanoplatelet Solids by Binary Systems. Angew Chem Int Ed Engl 2020; 59:22156-22162. [DOI: 10.1002/anie.202009193] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 08/03/2020] [Indexed: 01/10/2023]
Affiliation(s)
- Shaomin Peng
- Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials Engineering University of Macau Macao SAR 999078 China
| | - Qi Wei
- Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials Engineering University of Macau Macao SAR 999078 China
| | - Bingzhe Wang
- Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials Engineering University of Macau Macao SAR 999078 China
| | - Zhipeng Zhang
- Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials Engineering University of Macau Macao SAR 999078 China
| | - Hongcheng Yang
- Shenzhen Key Laboratory for Advanced Quantum Dot Displays and Lighting Department of Electrical & Electronic Engineering Southern University of Science and Technology Shenzhen 518055 China
| | - Guotao Pang
- Shenzhen Key Laboratory for Advanced Quantum Dot Displays and Lighting Department of Electrical & Electronic Engineering Southern University of Science and Technology Shenzhen 518055 China
| | - Kai Wang
- Shenzhen Key Laboratory for Advanced Quantum Dot Displays and Lighting Department of Electrical & Electronic Engineering Southern University of Science and Technology Shenzhen 518055 China
| | - Guichuan Xing
- Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials Engineering University of Macau Macao SAR 999078 China
| | - Xiao Wei Sun
- Shenzhen Key Laboratory for Advanced Quantum Dot Displays and Lighting Department of Electrical & Electronic Engineering Southern University of Science and Technology Shenzhen 518055 China
| | - Zikang Tang
- Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials Engineering University of Macau Macao SAR 999078 China
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21
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Masada S, Yamada T, Tahara H, Hirori H, Saruyama M, Kawawaki T, Sato R, Teranishi T, Kanemitsu Y. Effect of A-Site Cation on Photoluminescence Spectra of Single Lead Bromide Perovskite Nanocrystals. NANO LETTERS 2020; 20:4022-4028. [PMID: 32330045 DOI: 10.1021/acs.nanolett.0c01417] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Lead halide perovskite (APbX3) nanocrystals exhibit photoluminescence (PL) with both wide wavelength tunability and high quantum efficiency. While the Pb-X6 octahedra mainly determines the near-band-edge optical properties and the A-site cation affects the structural stability, the role of the A-site cation in determining the optical properties is still unclear. Here, we report the PL properties of three types of lead bromide perovskite APbBr3 nanocrystals with different cations [A = HC(NH2)2+, CH3NH3+, and Cs+], as revealed by single-dot spectroscopy, and discuss the influence of the A-site cation on the PL spectrum. The nanocrystal size dependences of the PL energy and lifetime show no large variation with the species of the A-site cation. We find that the size of the A-site cation determines the coupling strength between electrons and longitudinal-optical phonons in the nanocrystal and thus affects the PL spectral shape, especially the low-energy tail.
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Affiliation(s)
- Sojiro Masada
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Takumi Yamada
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Hirokazu Tahara
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Hideki Hirori
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Masaki Saruyama
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Tokuhisa Kawawaki
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Ryota Sato
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Toshiharu Teranishi
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Yoshihiko Kanemitsu
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
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22
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Zhong M, Zhao Z, Luo Y, Zhou F, Peng Y, Yin Y, Zhou W, Tang D. Stable green and red dual-color emission in all-inorganic halide-mixed perovskite single microsheets. RSC Adv 2020; 10:18368-18376. [PMID: 35517236 PMCID: PMC9053764 DOI: 10.1039/d0ra02068k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 05/06/2020] [Indexed: 11/21/2022] Open
Abstract
Recently, all-inorganic perovskites have attracted tremendous attention due to their excellent optoelectronic properties and extensive potential applications. However, these perovskites usually show a single emission wavelength because of the high ionic migration. Herein, we synthesized all-inorganic halide-mixed perovskite CsPbBr x I3-x microsheets with high crystal quality using the anti-solvent solution method and observed extraordinary green and red dual-color emission in single CsPbBr x I3-x microsheets. Power dependent PL spectra reveal excitonic and defect related recombination features of CsPbBr3 and CsPbI3 for the green and red emission. Temperature dependent PL spectra indicated a distinctive exciton-phonon coupling strength in CsPbBr x I3-x microsheets compared with pure CsPbBr3 and CsPbI3. The PL dynamics showing longer emission lifetime further confirmed this conclusion. Our work not only provides a novel strategy to produce stable dual-color emission integration, but also promotes the fundamental insight into the emission dynamics and exciton/free carrier related photophysics in all-inorganic halide-mixed perovskites.
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Affiliation(s)
- Manyi Zhong
- School of Physics and Electronics, Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of Education, Hunan Normal University Changsha 410081 People's Republic of China
| | - Zhuang Zhao
- School of Physics and Electronics, Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of Education, Hunan Normal University Changsha 410081 People's Republic of China
| | - Yuan Luo
- School of Physics and Electronics, Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of Education, Hunan Normal University Changsha 410081 People's Republic of China
| | - Fang Zhou
- Department of Basic Course, Hunan Police Academy Changsha 410138 People's Republic of China
| | - Yuehua Peng
- School of Physics and Electronics, Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of Education, Hunan Normal University Changsha 410081 People's Republic of China
| | - Yanling Yin
- School of Physics and Electronics, Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of Education, Hunan Normal University Changsha 410081 People's Republic of China
| | - Weichang Zhou
- School of Physics and Electronics, Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of Education, Hunan Normal University Changsha 410081 People's Republic of China
- Key Laboratory for Matter Microstructure and Function of Hunan Province, Synergetic Innovation Center for Quantum Effects and Application, Hunan Normal University Changsha 410081 People's Republic of China
| | - Dongsheng Tang
- School of Physics and Electronics, Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of Education, Hunan Normal University Changsha 410081 People's Republic of China
- Key Laboratory for Matter Microstructure and Function of Hunan Province, Synergetic Innovation Center for Quantum Effects and Application, Hunan Normal University Changsha 410081 People's Republic of China
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23
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Ben Aich R, Ben Radhia S, Boujdaria K, Chamarro M, Testelin C. Multiband k·p Model for Tetragonal Crystals: Application to Hybrid Halide Perovskite Nanocrystals. J Phys Chem Lett 2020; 11:808-817. [PMID: 31931571 DOI: 10.1021/acs.jpclett.9b02179] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
We investigate the theoretical band structure of organic-inorganic perovskites APbX3 with tetragonal crystal structure. Using D4h point group symmetry properties, we derive a general 16-band Hamiltonian describing the electronic band diagram in the vicinity of the wave-vector point corresponding to the direct band gap. For bulk crystals, a very good agreement between our predictions and experimental physical parameters, as band gap energies and effective carrier masses, is obtained. Extending this description to three-dimensional confined hybrid halide perovskite, we calculate the size dependence of the excitonic radiative lifetime and fine structure. We describe the exciton fine structure of cube-shaped nanocrystals by an interplay of crystal-field and electron-hole exchange interaction (short- and long-range parts) enhanced by confinement. Using very recent experimental results on FAPbBr3 nanocrystals, we extract the bulk short-range exchange interaction in this material and predict its value in other hybrid compounds. Finally, we also predict the bright-bright and bright-dark splittings as a function of nanocrystal size.
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Affiliation(s)
- R Ben Aich
- Faculté des Sciences de Bizerte, LR01ES15 Laboratoire de Physique des Matériaux: Structure et Propriétés , Université de Carthage , 7021 Bizerte , Tunisia
| | - S Ben Radhia
- Faculté des Sciences de Bizerte, LR01ES15 Laboratoire de Physique des Matériaux: Structure et Propriétés , Université de Carthage , 7021 Bizerte , Tunisia
| | - K Boujdaria
- Faculté des Sciences de Bizerte, LR01ES15 Laboratoire de Physique des Matériaux: Structure et Propriétés , Université de Carthage , 7021 Bizerte , Tunisia
| | - M Chamarro
- Institut des NanoSciences de Paris , Sorbonne Université, CNRS , F-75005 Paris , France
| | - C Testelin
- Institut des NanoSciences de Paris , Sorbonne Université, CNRS , F-75005 Paris , France
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24
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Jiang Y, Wang X, Pan A. Properties of Excitons and Photogenerated Charge Carriers in Metal Halide Perovskites. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1806671. [PMID: 31106917 DOI: 10.1002/adma.201806671] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 03/01/2019] [Indexed: 05/25/2023]
Abstract
Metal halide perovskites (MHPs) have recently attracted great attention from the scientific community due to their excellent photovoltaic performance as well as their tremendous potential for other optoelectronic applications such as light-emitting diodes, lasers, and photodetectors. Despite the rapid progress in device applications, a solid understanding of the photophysical properties behind the device performance is highly desirable for MHPs. Here, the properties of excitons and photogenerated charge carriers in MHPs are explored. The unique dielectric constant properties, crystal-liquid duality, and fundamental optical processes of MHPs are first discussed. The properties of excitons and related phenomena in MHPs are then detailed, including the exciton binding energy determined by various methods and their influence factors, exciton dynamics, exciton-photon coupling and related applications, and exciton-phonon coupling in MHPs. The properties of photogenerated free charge carriers in MHPs such as the carrier diffusion length, mobility, and recombination are described. Recent progress in various applications is also demonstrated. Finally, a conclusion and perspectives of future studies for MHPs are presented.
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Affiliation(s)
- Ying Jiang
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, School of Physics and Electronics, Hunan University, Changsha, 410012, China
| | - Xiao Wang
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, School of Physics and Electronics, Hunan University, Changsha, 410012, China
| | - Anlian Pan
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, College of Materials Science and Engineering, Hunan University, Changsha, 410012, China
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25
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Dirin D, Benin BM, Yakunin S, Krumeich F, Raino G, Frison R, Kovalenko MV. Microcarrier-Assisted Inorganic Shelling of Lead Halide Perovskite Nanocrystals. ACS NANO 2019; 13:11642-11652. [PMID: 31585035 PMCID: PMC6812064 DOI: 10.1021/acsnano.9b05481] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The conventional strategy of synthetic colloidal chemistry for bright and stable quantum dots has been the production of epitaxially matched core/shell heterostructures to mitigate the presence of deep trap states. This mindset has been shown to be incompatible with lead halide perovskite nanocrystals (LHP NCs) due to their dynamic surface and low melting point. Nevertheless, enhancements to their chemical stability are still in great demand for the deployment of LHP NCs in light-emitting devices. Rather than contend with their attributes, we propose a method in which we can utilize their dynamic, ionic lattice and uniquely defect-tolerant band structure to prepare non-epitaxial salt-shelled heterostructures that are able to stabilize these materials against their environment, while maintaining their excellent optical properties and increasing scattering to improve out-coupling efficiency. To do so, anchored LHP NCs are first synthesized through the heterogeneous nucleation of LHPs onto the surface of microcrystalline carriers, such as alkali halides. This first step stabilizes the LHP NCs against further merging, and this allows them to be coated with an additional inorganic shell through the surface-mediated reaction of amphiphilic Na and Br precursors in apolar media. These inorganically shelled NC@carrier composites offer significantly improved chemical stability toward polar organic solvents, such as γ-butyrolactone, acetonitrile, N-methylpyrrolidone, and trimethylamine, demonstrate high thermal stability with photoluminescence intensity reversibly dropping by no more than 40% at temperatures up to 120 °C, and improve compatibility with various UV-curable resins. This mindset for LHP NCs creates opportunities for their successful integration into next-generation light-emitting devices.
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Affiliation(s)
- Dmitry
N. Dirin
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Bogdan M. Benin
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Sergii Yakunin
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Frank Krumeich
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
| | - Gabriele Raino
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Ruggero Frison
- Department
of Chemistry, University of Zürich, CH-8057 Zürich, Switzerland
- Center
for X-ray Analytics, Empa − Swiss
Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
| | - Maksym V. Kovalenko
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
- E-mail:
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26
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Baranowski M, Galkowski K, Surrente A, Urban J, Kłopotowski Ł, Maćkowski S, Maude DK, Ben Aich R, Boujdaria K, Chamarro M, Testelin C, Nayak PK, Dollmann M, Snaith HJ, Nicholas RJ, Plochocka P. Giant Fine Structure Splitting of the Bright Exciton in a Bulk MAPbBr 3 Single Crystal. NANO LETTERS 2019; 19:7054-7061. [PMID: 31496255 DOI: 10.1021/acs.nanolett.9b02520] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Exciton fine structure splitting in semiconductors reflects the underlying symmetry of the crystal and quantum confinement. Because the latter factor strongly enhances the exchange interaction, most work has focused on nanostructures. Here, we report on the first observation of the bright exciton fine structure splitting in a bulk semiconductor crystal, where the impact of quantum confinement can be specifically excluded, giving access to the intrinsic properties of the material. Detailed investigation of the exciton photoluminescence and reflection spectra of a bulk methylammonium lead tribromide single crystal reveals a zero magnetic field splitting as large as ∼200 μeV. This result provides an important starting point for the discussion of the origin of the large bright exciton fine structure splitting observed in perovskite nanocrystals.
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Affiliation(s)
- Michał Baranowski
- Laboratoire National des Champs Magnétiques Intenses CNRS-UGA-UPS-INSA , UPR 3228, 31400 Toulouse , France
- Department of Experimental Physics, Faculty of Fundamental Problems of Technology , Wroclaw University of Science and Technology , 50-370 Wroclaw , Poland
| | - Krzysztof Galkowski
- Laboratoire National des Champs Magnétiques Intenses CNRS-UGA-UPS-INSA , UPR 3228, 31400 Toulouse , France
- Institute of Physics, Faculty of Physics, Astronomy and Informatics , Nicolaus Copernicus University , 5th Grudziadzka Street , 87-100 Torun , Poland
| | - Alessandro Surrente
- Laboratoire National des Champs Magnétiques Intenses CNRS-UGA-UPS-INSA , UPR 3228, 31400 Toulouse , France
| | - Joanna Urban
- Laboratoire National des Champs Magnétiques Intenses CNRS-UGA-UPS-INSA , UPR 3228, 31400 Toulouse , France
| | - Łukasz Kłopotowski
- Institute of Physics , Polish Academy of Sciences , al. Lotnikow 32/46 , 02-668 Warsaw , Poland
| | - Sebastian Maćkowski
- Institute of Physics, Faculty of Physics, Astronomy and Informatics , Nicolaus Copernicus University , 5th Grudziadzka Street , 87-100 Torun , Poland
| | - Duncan Kennedy Maude
- Laboratoire National des Champs Magnétiques Intenses CNRS-UGA-UPS-INSA , UPR 3228, 31400 Toulouse , France
| | - Rim Ben Aich
- Laboratoire de Physique des Matériaux: Structure et Propriétés, Faculté des Sciences de Bizerte , Université de Carthage , 7021 Zarzouna , Bizerte Tunisia
| | - Kais Boujdaria
- Laboratoire de Physique des Matériaux: Structure et Propriétés, Faculté des Sciences de Bizerte , Université de Carthage , 7021 Zarzouna , Bizerte Tunisia
| | - Maria Chamarro
- Institut des NanoSciences de Paris, INSP , Sorbonne Université, CNRS-UMR 7588 , 4 place Jussieu , F-75005 , Paris , France
| | - Christophe Testelin
- Institut des NanoSciences de Paris, INSP , Sorbonne Université, CNRS-UMR 7588 , 4 place Jussieu , F-75005 , Paris , France
| | - Pabitra K Nayak
- Clarendon Laboratory , University of Oxford , Parks Road, Oxford , OX1 3PU , United Kingdom
| | - Markus Dollmann
- Clarendon Laboratory , University of Oxford , Parks Road, Oxford , OX1 3PU , United Kingdom
| | - Henry James Snaith
- Clarendon Laboratory , University of Oxford , Parks Road, Oxford , OX1 3PU , United Kingdom
| | - Robin John Nicholas
- Clarendon Laboratory , University of Oxford , Parks Road, Oxford , OX1 3PU , United Kingdom
| | - Paulina Plochocka
- Laboratoire National des Champs Magnétiques Intenses CNRS-UGA-UPS-INSA , UPR 3228, 31400 Toulouse , France
- Department of Experimental Physics, Faculty of Fundamental Problems of Technology , Wroclaw University of Science and Technology , 50-370 Wroclaw , Poland
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27
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Liu L, Zhao R, Xiao C, Zhang F, Pevere F, Shi K, Huang H, Zhong H, Sychugov I. Size-Dependent Phase Transition in Perovskite Nanocrystals. J Phys Chem Lett 2019; 10:5451-5457. [PMID: 31465691 DOI: 10.1021/acs.jpclett.9b02058] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The complex structure of halide and oxide perovskites strongly affects their physical properties. Here, the effect of dimensions reduced to the nanoscale has been investigated by a combination of single-dot optical experiments with a phase transition theory. Methylammonium lead bromide (CH3NH3PbBr3) nanocrystals with two average particle sizes of ∼2 and ∼4 nm with blue and green photoluminescence, respectively, were spectrally and temporally probed on a single-particle level from 5 to 295 K. The results show that the abrupt blue shift of the photoluminescence spectra and lifetimes at ∼150 K can be attributed to the cubic-to-tetragonal phase transition in the large 4 nm nanocrystals, while this phase transition is completely absent for the small 2 nm particles in the investigated temperature range. Theoretical calculations based on Landau theory reveal a strong size-dependent effect on temperature-induced phase transitions in individual CH3NH3PbBr3 nanocrystals, corroborating experimental observations. This effect should be considered in structure-property analysis of ultrasmall perovskite crystals.
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Affiliation(s)
- Lige Liu
- State Key Laboratory for Mesoscopic Physics, Collaborative Innovation Center of Quantum Matter, School of Physics , Peking University , Beijing 100871 , China
- Department of Applied Physics , KTH Royal Institute of Technology , Electrum 229 , 16440 Kista , Sweden
| | - Ru Zhao
- School of Materials Science & Engineering , Beijing Institute of Technology , 5 South Street of Zhongguancun , 100081 Beijing , China
- Advanced Research Institute of Multidisciplinary Science , Beijing Institute of Technology , 5 South Street of Zhongguancun , 100081 Beijing , China
| | - Changtao Xiao
- School of Materials Science & Engineering , Beijing Institute of Technology , 5 South Street of Zhongguancun , 100081 Beijing , China
| | - Feng Zhang
- School of Materials Science & Engineering , Beijing Institute of Technology , 5 South Street of Zhongguancun , 100081 Beijing , China
| | - Federico Pevere
- Department of Applied Physics , KTH Royal Institute of Technology , Electrum 229 , 16440 Kista , Sweden
| | - Kebin Shi
- State Key Laboratory for Mesoscopic Physics, Collaborative Innovation Center of Quantum Matter, School of Physics , Peking University , Beijing 100871 , China
| | - Houbing Huang
- School of Materials Science & Engineering , Beijing Institute of Technology , 5 South Street of Zhongguancun , 100081 Beijing , China
- Advanced Research Institute of Multidisciplinary Science , Beijing Institute of Technology , 5 South Street of Zhongguancun , 100081 Beijing , China
| | - Haizheng Zhong
- School of Materials Science & Engineering , Beijing Institute of Technology , 5 South Street of Zhongguancun , 100081 Beijing , China
| | - Ilya Sychugov
- Department of Applied Physics , KTH Royal Institute of Technology , Electrum 229 , 16440 Kista , Sweden
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28
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Tamarat P, Bodnarchuk MI, Trebbia JB, Erni R, Kovalenko MV, Even J, Lounis B. The ground exciton state of formamidinium lead bromide perovskite nanocrystals is a singlet dark state. NATURE MATERIALS 2019; 18:717-724. [PMID: 31086320 DOI: 10.1038/s41563-019-0364-x] [Citation(s) in RCA: 111] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 04/03/2019] [Indexed: 05/20/2023]
Abstract
Lead halide perovskites have emerged as promising new semiconductor materials for high-efficiency photovoltaics, light-emitting applications and quantum optical technologies. Their luminescence properties are governed by the formation and radiative recombination of bound electron-hole pairs known as excitons, whose bright or dark character of the ground state remains unknown and debated. While symmetry analysis predicts a singlet non-emissive ground exciton topped with a bright exciton triplet, it has been predicted that the Rashba effect may reverse the bright and dark level ordering. Here, we provide the direct spectroscopic signature of the dark exciton emission in the low-temperature photoluminescence of single formamidinium lead bromide perovskite nanocrystals under magnetic fields. The dark singlet is located several millielectronvolts below the bright triplet, in fair agreement with an estimation of the long-range electron-hole exchange interaction. Nevertheless, these perovskites display an intense luminescence because of an extremely reduced bright-to-dark phonon-assisted relaxation.
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Affiliation(s)
- Philippe Tamarat
- Université de Bordeaux, LP2N, Talence, France
- Institut d'Optique and CNRS, LP2N, Talence, France
| | - Maryna I Bodnarchuk
- Empa-Swiss Federal Laboratories for Materials Science and Technology, Dubendorf, Switzerland
| | - Jean-Baptiste Trebbia
- Université de Bordeaux, LP2N, Talence, France
- Institut d'Optique and CNRS, LP2N, Talence, France
| | - Rolf Erni
- Empa-Swiss Federal Laboratories for Materials Science and Technology, Dubendorf, Switzerland
| | - Maksym V Kovalenko
- Empa-Swiss Federal Laboratories for Materials Science and Technology, Dubendorf, Switzerland
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich, Switzerland
| | - Jacky Even
- Univ Rennes, INSA Rennes, CNRS, Institut FOTON - UMR 6082, Rennes, France
| | - Brahim Lounis
- Université de Bordeaux, LP2N, Talence, France.
- Institut d'Optique and CNRS, LP2N, Talence, France.
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29
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Rainò G, Landuyt A, Krieg F, Bernasconi C, Ochsenbein ST, Dirin DN, Bodnarchuk MI, Kovalenko MV. Underestimated Effect of a Polymer Matrix on the Light Emission of Single CsPbBr 3 Nanocrystals. NANO LETTERS 2019; 19:3648-3653. [PMID: 31117751 DOI: 10.1021/acs.nanolett.9b00689] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Lead-halide perovskite APbX3 (A = Cs or organic cation; X = Cl, Br, I) nanocrystals (NCs) are the subject of intense research due to their exceptional characteristics as both classical and quantum light sources. Many challenges often faced with this material class concern the long-term optical stability, a serious intrinsic issue connected with the labile and polar crystal structure of APbX3 compounds. When conducting spectroscopy at a single particle level, due to the highly enhanced contaminants (e.g., water molecules, oxygen) over the NC ratio, deterioration of NC optical properties occurs within tens of seconds with typically used excitation power densities (1-100 W/cm2) and in ambient conditions. Here, we demonstrate that choosing a suitable polymer matrix is of paramount importance for obtaining stable spectra from a single NC and for suppressing the dynamic photoluminescence blueshift. In particular, polystyrene (PS), the most hydrophobic among four tested polymers, leads to the best optical stability, one to two orders of magnitude higher than that obtained with poly(methyl methacrylate), a common polymeric encapsulant containing polar ester groups. Molecular mechanics simulations based on a force-field approximation corroborate the hypothesis that PS affords for a denser molecular packing at the NC surface. These findings underscore the often-neglected role of the sample preparation methodologies for the assessment of the optical properties of perovskite NCs at a single-particle level and guide the further design of robust single photon sources.
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Affiliation(s)
- Gabriele Rainò
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences , ETH Zürich , CH-8093 Zürich , Switzerland
- Laboratory for Thin Films and Photovoltaics , Empa - Swiss Federal Laboratories for Materials Science and Technology , CH-8600 Dübendorf , Switzerland
| | - Annelies Landuyt
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences , ETH Zürich , CH-8093 Zürich , Switzerland
- Laboratory for Thin Films and Photovoltaics , Empa - Swiss Federal Laboratories for Materials Science and Technology , CH-8600 Dübendorf , Switzerland
| | - Franziska Krieg
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences , ETH Zürich , CH-8093 Zürich , Switzerland
- Laboratory for Thin Films and Photovoltaics , Empa - Swiss Federal Laboratories for Materials Science and Technology , CH-8600 Dübendorf , Switzerland
| | - Caterina Bernasconi
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences , ETH Zürich , CH-8093 Zürich , Switzerland
- Laboratory for Thin Films and Photovoltaics , Empa - Swiss Federal Laboratories for Materials Science and Technology , CH-8600 Dübendorf , Switzerland
| | - Stefan T Ochsenbein
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences , ETH Zürich , CH-8093 Zürich , Switzerland
- Laboratory for Thin Films and Photovoltaics , Empa - Swiss Federal Laboratories for Materials Science and Technology , CH-8600 Dübendorf , Switzerland
| | - Dmitry N Dirin
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences , ETH Zürich , CH-8093 Zürich , Switzerland
- Laboratory for Thin Films and Photovoltaics , Empa - Swiss Federal Laboratories for Materials Science and Technology , CH-8600 Dübendorf , Switzerland
| | - Maryna I Bodnarchuk
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences , ETH Zürich , CH-8093 Zürich , Switzerland
- Laboratory for Thin Films and Photovoltaics , Empa - Swiss Federal Laboratories for Materials Science and Technology , CH-8600 Dübendorf , Switzerland
| | - Maksym V Kovalenko
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences , ETH Zürich , CH-8093 Zürich , Switzerland
- Laboratory for Thin Films and Photovoltaics , Empa - Swiss Federal Laboratories for Materials Science and Technology , CH-8600 Dübendorf , Switzerland
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30
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Bodnarchuk M, Boehme SC, ten Brinck S, Bernasconi C, Shynkarenko Y, Krieg F, Widmer R, Aeschlimann B, Günther D, Kovalenko MV, Infante I. Rationalizing and Controlling the Surface Structure and Electronic Passivation of Cesium Lead Halide Nanocrystals. ACS ENERGY LETTERS 2019; 4:63-74. [PMID: 30662955 PMCID: PMC6333230 DOI: 10.1021/acsenergylett.8b01669] [Citation(s) in RCA: 170] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 11/27/2018] [Indexed: 05/03/2023]
Abstract
Colloidal lead halide perovskite nanocrystals (NCs) have recently emerged as versatile photonic sources. Their processing and luminescent properties are challenged by the lability of their surfaces, i.e., the interface of the NC core and the ligand shell. On the example of CsPbBr3 NCs, we model the nanocrystal surface structure and its effect on the emergence of trap states using density functional theory. We rationalize the typical observation of a degraded luminescence upon aging or the luminescence recovery upon postsynthesis surface treatments. The conclusions are corroborated by the elemental analysis. We then propose a strategy for healing the surface trap states and for improving the colloidal stability by the combined treatment with didodecyldimethylammonium bromide and lead bromide and validate this approach experimentally. This simple procedure results in robust colloids, which are highly pure and exhibit high photoluminescence quantum yields of up to 95-98%, retained even after three to four rounds of washing.
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Affiliation(s)
- Maryna
I. Bodnarchuk
- Empa
− Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Simon C. Boehme
- Department
of Theoretical Chemistry, Faculty of Science, Vrije Universiteit Amsterdam, de Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Stephanie ten Brinck
- Department
of Theoretical Chemistry, Faculty of Science, Vrije Universiteit Amsterdam, de Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Caterina Bernasconi
- Empa
− Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
| | - Yevhen Shynkarenko
- Empa
− Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
| | - Franziska Krieg
- Empa
− Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
| | - Roland Widmer
- Empa
− Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Beat Aeschlimann
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
| | - Detlef Günther
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
| | - Maksym V. Kovalenko
- Empa
− Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- M. V. Kovalenko. E-mail:
| | - Ivan Infante
- Department
of Theoretical Chemistry, Faculty of Science, Vrije Universiteit Amsterdam, de Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
- I. Infante. E-mail:
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31
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Becker MA, Scarpelli L, Nedelcu G, Rainò G, Masia F, Borri P, Stöferle T, Kovalenko MV, Langbein W, Mahrt RF. Long Exciton Dephasing Time and Coherent Phonon Coupling in CsPbBr 2Cl Perovskite Nanocrystals. NANO LETTERS 2018; 18:7546-7551. [PMID: 30407011 DOI: 10.1021/acs.nanolett.8b03027] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Fully inorganic cesium lead halide perovskite nanocrystals (NCs) have shown to exhibit outstanding optical properties such as wide spectral tunability, high quantum yield, high oscillator strength as well as blinking-free single photon emission, and low spectral diffusion. Here, we report measurements of the coherent and incoherent exciton dynamics on the 100 fs to 10 ns time scale, determining dephasing and density decay rates in these NCs. The experiments are performed on CsPbBr2Cl NCs using transient resonant three-pulse four-wave mixing (FWM) in heterodyne detection at temperatures ranging from 5 to 50 K. We found a low-temperature exciton dephasing time of 24.5 ± 1.0 ps, inferred from the decay of the photon-echo amplitude at 5 K, corresponding to a homogeneous line width (fwhm) of 54 ± 5 μeV. Furthermore, oscillations in the photon-echo signal on a picosecond time scale are observed and attributed to coherent coupling of the exciton to a quantized phonon mode with 3.45 meV energy.
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Affiliation(s)
- Michael A Becker
- IBM Research-Zurich , Säumerstrasse 4 , 8803 Rüschlikon , Switzerland
- Optical Materials Engineering Laboratory , ETH Zürich , 8092 Zürich , Switzerland
| | - Lorenzo Scarpelli
- School of Physics and Astronomy , Cardiff University , The Parade, Cardiff CF243AA , United Kingdom
| | - Georgian Nedelcu
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Bioscience , ETH Zürich , 8093 Zürich , Switzerland
- Laboratory of Thin Films and Photovoltaics , Empa - Swiss Federal Laboratories for Materials Science and Technology , 8600 Dübendorf , Switzerland
| | - Gabriele Rainò
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Bioscience , ETH Zürich , 8093 Zürich , Switzerland
- Laboratory of Thin Films and Photovoltaics , Empa - Swiss Federal Laboratories for Materials Science and Technology , 8600 Dübendorf , Switzerland
| | - Francesco Masia
- School of Physics and Astronomy , Cardiff University , The Parade, Cardiff CF243AA , United Kingdom
| | - Paola Borri
- School of Physics and Astronomy , Cardiff University , The Parade, Cardiff CF243AA , United Kingdom
- Cardiff University School of Biosciences , Museum Avenue, Cardiff CF10 3AX , United Kingdom
| | - Thilo Stöferle
- IBM Research-Zurich , Säumerstrasse 4 , 8803 Rüschlikon , Switzerland
| | - Maksym V Kovalenko
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Bioscience , ETH Zürich , 8093 Zürich , Switzerland
- Laboratory of Thin Films and Photovoltaics , Empa - Swiss Federal Laboratories for Materials Science and Technology , 8600 Dübendorf , Switzerland
| | - Wolfgang Langbein
- School of Physics and Astronomy , Cardiff University , The Parade, Cardiff CF243AA , United Kingdom
| | - Rainer F Mahrt
- IBM Research-Zurich , Säumerstrasse 4 , 8803 Rüschlikon , Switzerland
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32
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Vovk IA, Tepliakov NV, Baimuratov AS, Leonov MY, Baranov AV, Fedorov AV, Rukhlenko ID. Excitonic phenomena in perovskite quantum-dot supercrystals. Phys Chem Chem Phys 2018; 20:25023-25030. [PMID: 30246191 DOI: 10.1039/c8cp04724c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Quantum confinement and collective excitations in perovskite quantum-dot (QD) supercrystals offer multiple benefits to the light emitting and solar energy harvesting devices of modern photovoltaics. Recent advances in the fabrication technology of low dimensional perovskites has made the production of such supercrystals a reality and created a high demand for the modelling of excitonic phenomena inside them. Here we present a rigorous theory of Frenkel excitons in lead halide perovskite QD supercrystals with a square Bravais lattice. The theory shows that such supercrystals support three bright exciton modes whose dispersion and polarization properties are controlled by the symmetry of the perovskite lattice and the orientations of QDs. The effective masses of excitons are found to scale with the ratio of the superlattice period and the number of QDs along the supercrystal edge, allowing one to fine-tune the electro-optical response of the supercrystals as desired for applications. We also calculate the conductivity of perovskite QD supercrystals and analyze how it is affected by the optical generation of the three types of excitons. This paper provides a solid theoretical basis for the modelling of two- and three-dimensional supercrystals made of perovskite QDs and the engineering of photovoltaic devices with superior optoelectronic properties.
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Affiliation(s)
- Ilia A Vovk
- Information Optical Technologies Centre, ITMO University, Saint Petersburg 197101, Russia.
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