1
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Ye J, Gaur D, Mi C, Chen Z, Fernández IL, Zhao H, Dong Y, Polavarapu L, Hoye RLZ. Strongly-confined colloidal lead-halide perovskite quantum dots: from synthesis to applications. Chem Soc Rev 2024; 53:8095-8122. [PMID: 38894687 DOI: 10.1039/d4cs00077c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
Colloidal semiconductor nanocrystals enable the realization and exploitation of quantum phenomena in a controlled manner, and can be scaled up for commercial uses. These materials have become important for a wide range of applications, from ultrahigh definition displays, to solar cells, quantum computing, bioimaging, optical communications, and many more. Over the last decade, lead-halide perovskite nanocrystals have rapidly gained prominence as efficient semiconductors. Although the majority of studies have focused on large nanocrystals in the weak- to intermediate-confinement regime, quantum dots (QDs) in the strongly-confined regime (with sizes smaller than the Bohr diameter, which ranges from 4-12 nm for lead-halide perovskites) offer unique opportunities, including polarized light emission and color-pure, stable luminescence in the region that is unattainable by perovskites with single-halide compositions. In this tutorial review, we bring together the latest insights into this emerging and rapidly growing area, focusing on the synthesis, steady-state optical properties (including exciton fine-structure splitting), and transient kinetics (including hot carrier cooling) of strongly-confined perovskite QDs. We also discuss recent advances in their applications, including single photon emission for quantum technologies, as well as light-emitting diodes. We finish with our perspectives on future challenges and opportunities for strongly-confined QDs, particularly around improving the control over monodispersity and stability, important fundamental questions on the photophysics, and paths forward to improve the performance of perovskite QDs in light-emitting diodes.
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Affiliation(s)
- Junzhi Ye
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK.
| | - Deepika Gaur
- CINBIO, Universidade de Vigo, Materials Chemistry and Physics Group, Department of Physical Chemistry Campus Universitario As Lagoas, Marcosende 36310, Vigo, Spain.
| | - Chenjia Mi
- Department of Chemistry and Biochemistry, The University of Oklahoma, Norman, Oklahoma 73019, USA
| | - Zijian Chen
- Centre for Intelligent and Biomimetic Systems, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 440305, China
| | - Iago López Fernández
- CINBIO, Universidade de Vigo, Materials Chemistry and Physics Group, Department of Physical Chemistry Campus Universitario As Lagoas, Marcosende 36310, Vigo, Spain.
| | - Haitao Zhao
- Centre for Intelligent and Biomimetic Systems, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 440305, China
| | - Yitong Dong
- Department of Chemistry and Biochemistry, The University of Oklahoma, Norman, Oklahoma 73019, USA
| | - Lakshminarayana Polavarapu
- CINBIO, Universidade de Vigo, Materials Chemistry and Physics Group, Department of Physical Chemistry Campus Universitario As Lagoas, Marcosende 36310, Vigo, Spain.
| | - Robert L Z Hoye
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK.
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2
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Yang C, Li Y, Hou X, Zhang M, Zhang G, Li B, Guo W, Han X, Bai X, Li J, Chen R, Qin C, Hu J, Xiao L, Jia S. Conversion of Photoluminescence Blinking Types in Single Colloidal Quantum Dots. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2309134. [PMID: 38150666 DOI: 10.1002/smll.202309134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/29/2023] [Indexed: 12/29/2023]
Abstract
Almost all colloidal quantum dots (QDs) exhibit undesired photoluminescence (PL) blinking, which poses a significant obstacle to their use in numerous luminescence applications. An in-depth study of the blinking behavior, along with the associated mechanisms, can provide critical opportunities for fabricating high-quality QDs for diverse applications. Here the blinking of a large series of colloidal QDs is investigated with different surface ligands, particle sizes, shell thicknesses, and compositions. It is found that the blinking behavior of single alloyed CdSe/ZnS QDs with a shell thickness of up to 2 nm undergoes an irreversible conversion from Auger-blinking to band-edge carrier blinking (BC-blinking). Contrastingly, single perovskite QDs with particle sizes smaller than their Bohr diameters exhibit reversible conversion between BC-blinking and more pronounced Auger-blinking. Changes in the effective trapping sites under different excitation conditions are found to be responsible for the blinking type conversions. Additionally, changes in shell thickness and particle size of QDs have a significant effect on the blinking type conversions due to altered wavefunction overlap between excitons and effective trapping sites. This study elucidates the discrepancies in the blinking behavior of various QD samples observed in previous reports and provides deeper understanding of the mechanisms underlying diverse types of blinking.
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Affiliation(s)
- Changgang Yang
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, 030006, China
| | - Yang Li
- School of Physics and Optoelectronic Engineering, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China
- Research Institute of Intelligent Sensing, Zhejiang Lab, Hangzhou, 311100, China
| | - Xiaoqi Hou
- School of Chemistry and Material Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China
| | - Mi Zhang
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, 030006, China
| | - Guofeng Zhang
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, 030006, China
| | - Bin Li
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, 030006, China
| | - Wenli Guo
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, 030006, China
| | - Xue Han
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, 030006, China
| | - Xiuqing Bai
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, 030006, China
| | - Jialu Li
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, 030006, China
| | - Ruiyun Chen
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, 030006, China
| | - Chengbing Qin
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, 030006, China
| | - Jianyong Hu
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, 030006, China
| | - Liantuan Xiao
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, 030006, China
| | - Suotang Jia
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, 030006, China
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3
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Meliakov SR, Zhukov EA, Kulebyakina EV, Belykh VV, Yakovlev DR. Coherent Spin Dynamics of Electrons in CsPbBr 3 Perovskite Nanocrystals at Room Temperature. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2454. [PMID: 37686962 PMCID: PMC10489742 DOI: 10.3390/nano13172454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 08/24/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023]
Abstract
Coherent spin dynamics of charge carriers in CsPbBr3 perovskite nanocrystals are studied in a temperature range of 4-300 K and in magnetic fields of up to 500 mT using time-resolved pump-probe Faraday rotation and differential transmission techniques. We detect electron spin Larmor precession in the entire temperature range. At temperatures below 50 K, hole spin precession is also observed. The temperature dependences of spin-related parameters, such as Landè g-factor and spin dephasing time are measured and analyzed. The electron g-factor increases with growing temperature, which can not be described by the temperature-induced band gap renormalization. We find that photocharging of the nanocrystals with either electrons or holes depends on the sample cooling regime, namely the cooling rate and illumination conditions. The type of the charge carrier provided by the photocharging can be identified via the carrier spin Larmor precession.
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Affiliation(s)
- Sergey R. Meliakov
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, 119991 Moscow, Russia
| | - Evgeny A. Zhukov
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, 119991 Moscow, Russia
- Experimentelle Physik 2, Technische Universität Dortmund, 44227 Dortmund, Germany
| | | | - Vasilii V. Belykh
- Experimentelle Physik 2, Technische Universität Dortmund, 44227 Dortmund, Germany
| | - Dmitri R. Yakovlev
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, 119991 Moscow, Russia
- Experimentelle Physik 2, Technische Universität Dortmund, 44227 Dortmund, Germany
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4
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Bhardwaj A, Kundu K, Sasmal R, Acharyya P, Pradhan J, Kalita S, Agasti SS, Biswas K. 2D nanosheets of layered double perovskites: synthesis, photostable bright orange emission and photoluminescence blinking. Chem Sci 2023; 14:7161-7169. [PMID: 37416708 PMCID: PMC10321497 DOI: 10.1039/d3sc02506c] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 06/06/2023] [Indexed: 07/08/2023] Open
Abstract
Lead (Pb)-free layered double perovskites (LDPs) with exciting optical properties and environmental stability have sparked attention in optoelectronics, but their high photoluminescence (PL) quantum yield and understanding of the PL blinking phenomenon at the single particle level are still elusive. Herein, we not only demonstrate a hot-injection route for the synthesis of two-dimensional (2D) ∼2-3 layer thick nanosheets (NSs) of LDP, Cs4CdBi2Cl12 (pristine), and its partially Mn-substituted analogue [i.e., Cs4Cd0.6Mn0.4Bi2Cl12 (Mn-substituted)], but also present a solvent-free mechanochemical synthesis of these samples as bulk powders. Bright and intense orange emission has been perceived for partially Mn-substituted 2D NSs with a relatively high PL quantum yield (PLQY) of ∼21%. The PL and lifetime measurements both at cryogenic (77 K) and room temperatures were employed to understand the de-excitation pathways of charge carriers. With the implementation of super-resolved fluorescence microscopy and time-resolved single particle tracking, we identified the occurrence of metastable non-radiative recombination channels in a single NS. In contrast to the rapid photo-bleaching that resulted in a PL blinking-like nature of the controlled pristine NS, the 2D NS of the Mn-substituted sample displayed negligible photo-bleaching with suppression of PL fluctuation under continuous illumination. The blinking-like nature in pristine NSs appeared due to a dynamic equilibrium flanked by the active and in-active states of metastable non-radiative channels. However, the partial substitution of Mn2+ stabilized the in-active state of the non-radiative channels, which increased the PLQY and suppressed PL fluctuation and photo-bleaching events in Mn-substituted NSs.
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Affiliation(s)
- Aditya Bhardwaj
- New Chemistry Unit and School of Advanced Materials Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Jakkur P.O. Bangalore 560064 India
| | - Kaushik Kundu
- New Chemistry Unit and School of Advanced Materials Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Jakkur P.O. Bangalore 560064 India
| | - Ranjan Sasmal
- New Chemistry Unit and School of Advanced Materials Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Jakkur P.O. Bangalore 560064 India
| | - Paribesh Acharyya
- New Chemistry Unit and School of Advanced Materials Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Jakkur P.O. Bangalore 560064 India
| | - Jayita Pradhan
- New Chemistry Unit and School of Advanced Materials Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Jakkur P.O. Bangalore 560064 India
| | - Simanta Kalita
- Chemistry and Physics of Materials Unit, JNCASR Jakkur P.O. Bangalore 560064 India
| | - Sarit S Agasti
- New Chemistry Unit and School of Advanced Materials Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Jakkur P.O. Bangalore 560064 India
- Chemistry and Physics of Materials Unit, JNCASR Jakkur P.O. Bangalore 560064 India
| | - Kanishka Biswas
- New Chemistry Unit and School of Advanced Materials Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Jakkur P.O. Bangalore 560064 India
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5
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Nguyen HA, Dixon G, Dou FY, Gallagher S, Gibbs S, Ladd DM, Marino E, Ondry JC, Shanahan JP, Vasileiadou ES, Barlow S, Gamelin DR, Ginger DS, Jonas DM, Kanatzidis MG, Marder SR, Morton D, Murray CB, Owen JS, Talapin DV, Toney MF, Cossairt BM. Design Rules for Obtaining Narrow Luminescence from Semiconductors Made in Solution. Chem Rev 2023. [PMID: 37311205 DOI: 10.1021/acs.chemrev.3c00097] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Solution-processed semiconductors are in demand for present and next-generation optoelectronic technologies ranging from displays to quantum light sources because of their scalability and ease of integration into devices with diverse form factors. One of the central requirements for semiconductors used in these applications is a narrow photoluminescence (PL) line width. Narrow emission line widths are needed to ensure both color and single-photon purity, raising the question of what design rules are needed to obtain narrow emission from semiconductors made in solution. In this review, we first examine the requirements for colloidal emitters for a variety of applications including light-emitting diodes, photodetectors, lasers, and quantum information science. Next, we will delve into the sources of spectral broadening, including "homogeneous" broadening from dynamical broadening mechanisms in single-particle spectra, heterogeneous broadening from static structural differences in ensemble spectra, and spectral diffusion. Then, we compare the current state of the art in terms of emission line width for a variety of colloidal materials including II-VI quantum dots (QDs) and nanoplatelets, III-V QDs, alloyed QDs, metal-halide perovskites including nanocrystals and 2D structures, doped nanocrystals, and, finally, as a point of comparison, organic molecules. We end with some conclusions and connections, including an outline of promising paths forward.
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Affiliation(s)
- Hao A Nguyen
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Grant Dixon
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Florence Y Dou
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Shaun Gallagher
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Stephen Gibbs
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Dylan M Ladd
- Department of Materials Science and Engineering, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - Emanuele Marino
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Via Archirafi 36, 90123 Palermo, Italy
| | - Justin C Ondry
- Department of Chemistry, James Franck Institute, and Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - James P Shanahan
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Eugenia S Vasileiadou
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Stephen Barlow
- Renewable and Sustainable Energy Institute, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - Daniel R Gamelin
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - David S Ginger
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - David M Jonas
- Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, United States
- Renewable and Sustainable Energy Institute, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - Mercouri G Kanatzidis
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Seth R Marder
- Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, United States
- Renewable and Sustainable Energy Institute, University of Colorado Boulder, Boulder, Colorado 80303, United States
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - Daniel Morton
- Renewable and Sustainable Energy Institute, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - Christopher B Murray
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Jonathan S Owen
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Dmitri V Talapin
- Department of Chemistry, James Franck Institute, and Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Michael F Toney
- Department of Materials Science and Engineering, University of Colorado Boulder, Boulder, Colorado 80303, United States
- Renewable and Sustainable Energy Institute, University of Colorado Boulder, Boulder, Colorado 80303, United States
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - Brandi M Cossairt
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
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6
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Boehme S, Bodnarchuk MI, Burian M, Bertolotti F, Cherniukh I, Bernasconi C, Zhu C, Erni R, Amenitsch H, Naumenko D, Andrusiv H, Semkiv N, John RA, Baldwin A, Galkowski K, Masciocchi N, Stranks SD, Rainò G, Guagliardi A, Kovalenko MV. Strongly Confined CsPbBr 3 Quantum Dots as Quantum Emitters and Building Blocks for Rhombic Superlattices. ACS NANO 2023; 17:2089-2100. [PMID: 36719353 PMCID: PMC9933619 DOI: 10.1021/acsnano.2c07677] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 01/05/2023] [Indexed: 06/18/2023]
Abstract
The success of the colloidal semiconductor quantum dots (QDs) field is rooted in the precise synthetic control of QD size, shape, and composition, enabling electronically well-defined functional nanomaterials that foster fundamental science and motivate diverse fields of applications. While the exploitation of the strong confinement regime has been driving commercial and scientific interest in InP or CdSe QDs, such a regime has still not been thoroughly explored and exploited for lead-halide perovskite QDs, mainly due to a so far insufficient chemical stability and size monodispersity of perovskite QDs smaller than about 7 nm. Here, we demonstrate chemically stable strongly confined 5 nm CsPbBr3 colloidal QDs via a postsynthetic treatment employing didodecyldimethylammonium bromide ligands. The achieved high size monodispersity (7.5% ± 2.0%) and shape-uniformity enables the self-assembly of QD superlattices with exceptional long-range order, uniform thickness, an unusual rhombic packing with an obtuse angle of 104°, and narrow-band cyan emission. The enhanced chemical stability indicates the promise of strongly confined perovskite QDs for solution-processed single-photon sources, with single QDs showcasing a high single-photon purity of 73% and minimal blinking (78% "on" fraction), both at room temperature.
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Affiliation(s)
- Simon
C. Boehme
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa, Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland
| | - Maryna I. Bodnarchuk
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa, Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland
| | - Max Burian
- Swiss
Light Source, Paul Scherrer Institute, 5232 Villigen, Switzerland
| | - Federica Bertolotti
- Department
of Science and High Technology and To.Sca.Lab., University of Insubria, via Valleggio 11, 22100 Como, Italy
| | - Ihor Cherniukh
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa, Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland
| | - Caterina Bernasconi
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa, Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland
| | - Chenglian Zhu
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa, Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland
| | - Rolf Erni
- Electron
Microscopy Center, Empa, Swiss
Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland
| | - Heinz Amenitsch
- Institute
of Inorganic Chemistry, Graz University
of Technology, 8010 Graz, Austria
| | - Denys Naumenko
- Institute
of Inorganic Chemistry, Graz University
of Technology, 8010 Graz, Austria
| | - Hordii Andrusiv
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa, Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland
| | - Nazar Semkiv
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa, Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland
| | - Rohit Abraham John
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa, Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland
| | - Alan Baldwin
- Cavendish
Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, U.K.
- Department
of Chemical Engineering & Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, U.K.
| | - Krzysztof Galkowski
- Cavendish
Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, U.K.
| | - Norberto Masciocchi
- Department
of Science and High Technology and To.Sca.Lab., University of Insubria, via Valleggio 11, 22100 Como, Italy
| | - Samuel D. Stranks
- Cavendish
Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, U.K.
- Department
of Chemical Engineering & Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, U.K.
| | - Gabriele Rainò
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa, Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland
| | - Antonietta Guagliardi
- Istituto
di Cristallografia and To.Sca.Lab, Consiglio
Nazionale delle Ricerche, via Valleggio 11, 22100 Como, Italy
| | - Maksym V. Kovalenko
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa, Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland
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7
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Paul S, Samanta A. Phase-Stable and Highly Luminescent CsPbI 3 Perovskite Nanocrystals with Suppressed Photoluminescence Blinking. J Phys Chem Lett 2022; 13:5742-5750. [PMID: 35713649 DOI: 10.1021/acs.jpclett.2c01463] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Despite their low band gap, the utility of CsPbI3 nanocrystals (NCs) in solar photovoltaic and optoelectronic applications is rather limited because of their phase instability and photoluminescence (PL) intermittency. Herein we show that phase-pure, monodispersed, stable and highly luminescent CsPbI3 NCs can be obtained by tweaking the conventional hot-injection method employing NH4I as an additional precursor. Single-particle studies show a significant suppression of PL blinking. Among all NCs studied, 60% exhibit only high-intensity ON states with a narrow distribution of intensity. The remaining 40% of NCs exhibit a much wider distribution of PL intensity with a significant contribution of low-intensity OFF states. Excellent characteristics of these CsPbI3 NCs are shown to be the result of NH4+ replacing some surface Cs+ of an iodide-rich surface of the NCs. These phase-stable and highly luminescent CsPbI3 NCs with significantly suppressed PL blinking can be useful single-photon emitters and promising materials for optoelectronic and solar photovoltaic applications.
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Affiliation(s)
- Sumanta Paul
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
| | - Anunay Samanta
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
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8
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Chi S, Yang S, Sun Y, Pang Z, Sun X, Fan L, Wang F, Liu X, Wei M, Yang J, Yang N, Yang L. Synthesis and Improved Photoluminescent Properties and Stability of Bromine‐Rich CsPbBr
3
Nanocrystals Via using CTAB as Additive. CRYSTAL RESEARCH AND TECHNOLOGY 2022. [DOI: 10.1002/crat.202200051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shaohua Chi
- Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences Changchun 130033 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun 130103 P. R. China
| | - Shuo Yang
- College of Science Changchun University Changchun 130022 P. R. China
| | - Yansen Sun
- Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences Changchun 130033 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun 130103 P. R. China
| | - Zhenyu Pang
- Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences Changchun 130033 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun 130103 P. R. China
| | - Xiaoxu Sun
- Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences Changchun 130033 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun 130103 P. R. China
| | - Lin Fan
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun 130103 P. R. China
| | - Fengyou Wang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun 130103 P. R. China
| | - Xiaoyan Liu
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun 130103 P. R. China
| | - Maobin Wei
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun 130103 P. R. China
| | - Jinghai Yang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun 130103 P. R. China
| | - Nannan Yang
- College of Mechanical Engineering Jilin Engineering Normal University Changchun 130052 P. R. China
| | - Lili Yang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun 130103 P. R. China
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9
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Yang Z, Dong Y, Zong S, Li L, Yang K, Wang Z, Zeng H, Cui Y. Water-dispersed CsPbBr 3 nanocrystals for single molecule localization microscopy with high location accuracy for targeted bioimaging. NANOSCALE 2022; 14:6392-6401. [PMID: 35415728 DOI: 10.1039/d1nr08029f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Single-molecule localization microscopy (SMLM) is one of the most promising super-resolution imaging techniques for visualizing ultrasmall cellular structures. Here, water-dispersed perovskite CsPbBr3 nanocrystals (CsPbBr3 NCs) fabricated by a one-step mechanochemical method are explored as a SMLM fluorophore for bioimaging. Due to their ultrahigh photoluminescence quantum yield (PLQY), inherent frequent fluorescence blinking, proper duty cycle and long-term photostability, an extremely high location precision of ∼3 nm was achieved, a sixfold enhancement than those reported previously. In addition, the spatial resolution of a SMLM image depends on the size of CsPbBr3 NCs, which is approximately 23 nm. Two closely spaced CsPbBr3 NCs with a gap of 40 nm can be clearly distinguished in the SMLM image. More importantly, unlike most perovskite quantum dots (QDs), one-step mechanochemically prepared CsPbBr3 NCs can retain their excellent fluorescence characteristics even after surface biofunctionalization, greatly reducing the current limitations of perovskite QDs on bioimaging. As an example, cell-derived exosomes (30-150 nm in diameter) labeled with CsPbBr3 NCs were easily identified by SMLM. In addition, after being functionalized with biotin, targeted SMLM imaging of the nuclear lamina or cell membranes of cells was achieved with an enhanced resolution. This work may open up a promising avenue to expand the field of perovskite QD-based SMLM to bioimaging with a high location accuracy.
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Affiliation(s)
- Zhaoyan Yang
- Advanced Photonics Center, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China.
| | - Yuhui Dong
- MIIT Key Laboratory of Advanced Display Materials and Devices, Institute of Optoelectronics & Nanomaterials, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Shenfei Zong
- Advanced Photonics Center, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China.
| | - Lang Li
- Advanced Photonics Center, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China.
| | - Kuo Yang
- Advanced Photonics Center, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China.
| | - Zhuyuan Wang
- Advanced Photonics Center, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China.
| | - Haibo Zeng
- MIIT Key Laboratory of Advanced Display Materials and Devices, Institute of Optoelectronics & Nanomaterials, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Yiping Cui
- Advanced Photonics Center, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China.
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10
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Yang Z, Zong S, Yang K, Zhu K, Li N, Wang Z, Cui Y. Wavelength Tunable Aqueous CsPbBr 3-Based Nanoprobes with Ultrahigh Photostability for Targeted Super-Resolution Bioimaging. ACS APPLIED MATERIALS & INTERFACES 2022; 14:17109-17118. [PMID: 35380800 DOI: 10.1021/acsami.2c01638] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Single molecule localization microscopy (SMLM) is indispensable in the visualization of cellular microstructures. However, current SMLM imaging materials, from organic fluorophores to quantum dots, still lack the requirement of increasing need for multiple targets of interest due to their broad emission. Here, by one-step encapsulating hydrophilic cesium lead bromide perovskite nanocrystals (CsPbBr3 NCs) into functionalized polyethylene glycol (PEG), a core-shell nanocomposite of CsPb(Cl(1-x)/Brx)3@PEG (0 < x < 1) was presented as a wavelength-tunable fluorescent probe with the narrow full width at half-maximum (fwhm) as 11 nm. The layer of functionalized PEG endows CsPbBr3 NCs with a broad spectral tunability from 521 to 431 nm, superior photostability for several years, and the ability to be further surface functionalized. The CsPb(Cl(1-x)/Brx)3@PEG exhibits a sub-10 nm localization precision and 10-fold enhanced spatial resolution. Using exosomes with small sizes less than 150 nm as the imaging target, CsPb(Cl(1-x)/Brx)3@PEG realized the distinction of two adjacent exosomes by SMLM. Moreover, after being modified with biotin, CsPb(Cl(1-x)/Brx)3@PEG was universally used for SMLM imaging of cellular microstructures. The excellent photostability and narrow fwhm indicated that such a CsPbBr3-based nanoprobe has great potential as a commercial dye for multitarget super-resolution bioimaging applications.
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Affiliation(s)
- Zhaoyan Yang
- Advanced Photonics Center, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China
| | - Shenfei Zong
- Advanced Photonics Center, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China
| | - Kuo Yang
- Advanced Photonics Center, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China
| | - Kai Zhu
- Advanced Photonics Center, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China
| | - Na Li
- Advanced Photonics Center, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China
| | - Zhuyuan Wang
- Advanced Photonics Center, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China
| | - Yiping Cui
- Advanced Photonics Center, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China
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11
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He Y, Chen J, Liu R, Weng Y, Zhang C, Kuang Y, Wang X, Guo L, Ran X. Suppressed Blinking and Polarization-Dependent Emission Enhancement of Single ZnCdSe/ZnS Dot Coupled with Au Nanorods. ACS APPLIED MATERIALS & INTERFACES 2022; 14:12901-12910. [PMID: 35245021 DOI: 10.1021/acsami.2c00207] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Fluorescent quantum dots (QDs) have attracted extensive attention because of their promising applications in many fields such as quantum optics, optoelectronics, solid-state lighting, and bioimaging. However, photo-blinking, low emission efficiency, and instability are the drawbacks of fluorescent QD-based devices, affecting their optical properties and practical applications. Here, we report suppressed blinking, enhanced radiative rate, and polarization-dependent emission properties of single ZnCdSe/ZnS QDs assembled on the surface of Au nanorods (NRs). We found that the local surface plasmon (LSP) of Au NRs significantly regulates the excitation and emission properties of the composite ZnCdSe/ZnS QD-Au NRs (QD-Au NRs). The average number of photons emitted per unit time from single QD-Au NRs has been significantly enhanced compared with that of single ZnCdSe/ZnS QDs on the coverslip, accompanied by a drastically shortened lifetime and suppressed blinking. According to the experimental and simulation analysis, the photogenerated LSP field of Au NRs remarkably increases the excitation transition and the radiative rates of QD-Au NRs. Although the emission efficiency is slightly increased, the synergetic enhancement of excitation and radiative rates sufficiently competes with the nonradiative process to compensate for the low emission efficiency of QDs and ultimately suppress the photo-blinking of QD-Au NRs. Moreover, the polarization-dependent emission enhancement has also been observed and theoretically analyzed, demonstrating good consistency and confirming the contribution of excitation enhancement. Our findings present a practical strategy to improve the optical properties and stability of single QD-Au NR composite and provide essential information for a deep understanding of the interaction between emitters and the LSP field of metal nanoparticles.
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Affiliation(s)
- Yulu He
- Academy for Advanced Interdisciplinary Studies, State Key Laboratory of Crop Stress Adaptation and Improvement, School of Physics and Electronics, Henan University, Kaifeng 475004, China
| | - Jin Chen
- School of Physics and Electronics, International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, Henan University, Kaifeng 475004, China
| | - Renming Liu
- School of Physics and Electronics, International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, Henan University, Kaifeng 475004, China
| | - Yulong Weng
- Academy for Advanced Interdisciplinary Studies, State Key Laboratory of Crop Stress Adaptation and Improvement, School of Physics and Electronics, Henan University, Kaifeng 475004, China
| | - Cong Zhang
- School of Physics and Electronics, International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, Henan University, Kaifeng 475004, China
| | - Yanmin Kuang
- School of Physics and Electronics, International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, Henan University, Kaifeng 475004, China
| | - Xiaojuan Wang
- School of Physics and Electronics, International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, Henan University, Kaifeng 475004, China
| | - Lijun Guo
- Academy for Advanced Interdisciplinary Studies, State Key Laboratory of Crop Stress Adaptation and Improvement, School of Physics and Electronics, Henan University, Kaifeng 475004, China
| | - Xia Ran
- School of Physics and Electronics, International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, Henan University, Kaifeng 475004, China
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12
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Choi S, Kim G, Ko Y, Lee J, Lee S, Zheng X, Hong S, Park J, Lee K, Prabhakaran P. Highly stable mixed halide perovskite quantum dots synthesized in the presence of fluorous ligands. NANO SELECT 2022. [DOI: 10.1002/nano.202100315] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Affiliation(s)
- Sinil Choi
- Department of Advanced Materials Hannam University Daejeon Republic of Korea
| | - Gyeong‐Ju Kim
- Department of Advanced Materials Hannam University Daejeon Republic of Korea
| | - Yun‐Hyuk Ko
- Department of Advanced Materials Hannam University Daejeon Republic of Korea
- Department of Electronics and Computer Engineering Hanyang University Seoul Republic of Korea
| | - Ji‐Eun Lee
- Department of Electronics and Computer Engineering Hanyang University Seoul Republic of Korea
| | - Seung‐Jae Lee
- Department of Electronics and Computer Engineering Hanyang University Seoul Republic of Korea
| | - Xiangming Zheng
- Department of Advanced Materials Hannam University Daejeon Republic of Korea
| | - Sujin Hong
- Department of Advanced Materials Hannam University Daejeon Republic of Korea
| | - Jea‐Gun Park
- Department of Electronics and Computer Engineering Hanyang University Seoul Republic of Korea
| | - Kwang‐Sup Lee
- Department of Advanced Materials Hannam University Daejeon Republic of Korea
| | - Prem Prabhakaran
- Department of Advanced Materials Hannam University Daejeon Republic of Korea
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13
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van der Laan M, de Weerd C, Poirier L, van de Water O, Poonia D, Gomez L, Kinge S, Siebbeles LDA, Koenderink AF, Gregorkiewicz T, Schall P. Photon Recycling in CsPbBr 3 All-Inorganic Perovskite Nanocrystals. ACS PHOTONICS 2021; 8:3201-3208. [PMID: 34820474 PMCID: PMC8603385 DOI: 10.1021/acsphotonics.1c00953] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Indexed: 05/21/2023]
Abstract
Photon recycling, the iterative process of re-absorption and re-emission of photons in an absorbing medium, can play an important role in the power-conversion efficiency of photovoltaic cells. To date, several studies have proposed that this process may occur in bulk or thin films of inorganic lead-halide perovskites, but conclusive proof of the occurrence and magnitude of this effect is missing. Here, we provide clear evidence and quantitative estimation of photon recycling in CsPbBr3 nanocrystal suspensions by combining measurements of steady-state and time-resolved photoluminescence (PL) and PL quantum yield with simulations of photon diffusion through the suspension. The steady-state PL shows clear spectral modifications including red shifts and quantum yield decrease, while the time-resolved measurements show prolonged PL decay and rise times. These effects grow as the nanocrystal concentration and distance traveled through the suspension increase. Monte Carlo simulations of photons diffusing through the medium and exhibiting absorption and re-emission account quantitatively for the observed trends and show that up to five re-emission cycles are involved. We thus identify 4 quantifiable measures, PL red shift, PL QY, PL decay time, and PL rise time that together all point toward repeated, energy-directed radiative transfer between nanocrystals. These results highlight the importance of photon recycling for both optical properties and photovoltaic applications of inorganic perovskite nanocrystals.
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Affiliation(s)
- Marco van der Laan
- Institute
of Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Chris de Weerd
- Institute
of Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Lucas Poirier
- Institute
of Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Oscar van de Water
- Institute
of Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Deepika Poonia
- Optoelectronic
Materials Section, Department of Chemical Engineering, Delft University of Technology, 2629 HZ Delft, The Netherlands
| | - Leyre Gomez
- Institute
of Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
- Catalan
Institute of Nanoscience and Nanotechnology, CSIC, BIST, and CIBERBBN, 08193 Bellaterra, Barcelona, Spain
| | - Sachin Kinge
- Optoelectronic
Materials Section, Department of Chemical Engineering, Delft University of Technology, 2629 HZ Delft, The Netherlands
- Materials
Research & Development, Toyota Motor
Europe, B1930 Zaventem, Belgium
| | - Laurens D. A. Siebbeles
- Optoelectronic
Materials Section, Department of Chemical Engineering, Delft University of Technology, 2629 HZ Delft, The Netherlands
| | - A. Femius Koenderink
- Institute
of Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
- Center
for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
| | - Tom Gregorkiewicz
- Institute
of Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Peter Schall
- Institute
of Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
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14
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Mandal S, Ghosh S, Mukherjee S, Roy D, De CK, Mukhuti K, Mandal PK. Near-Ergodic CsPbBr 3 Perovskite Nanocrystal with Minimal Statistical Aging. J Phys Chem Lett 2021; 12:10169-10174. [PMID: 34643402 DOI: 10.1021/acs.jpclett.1c02326] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Optical robustness, uniformity, ergodicity, statistical aging, etc. dictate the applicability of nanocrystals. Based on a series of multimodal statistical analyses such as the Kolmogorov-Smirnov test, Lévy statistics, etc., we demonstrate that for CsPbBr3 perovskite nanocrystals (PNCs): (a) the extent of heterogeneity in the quality and associated physical processes is minimal; (b) the optical robustness is very high, and (c) indeed, a single PNC can depict optical behavior of its ensemble. In addition, toward prospective applications, an optically robust CsPbBr3 PNC exhibits (i) near-ergodicity and (ii) minimal statistical aging, which are extremely vital and complementary to its high defect tolerance.
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Affiliation(s)
- Saptarshi Mandal
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, India 741246
| | - Swarnali Ghosh
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, India 741246
| | - Soumen Mukherjee
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, India 741246
| | - Debjit Roy
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, India 741246
| | - Chayan K De
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, India 741246
| | - Kingshuk Mukhuti
- Department of Physical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, India 741246
| | - Prasun K Mandal
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, India 741246
- Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, India 741246
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15
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Iaru CM, Brodu A, van Hoof NJJ, Ter Huurne SET, Buhot J, Montanarella F, Buhbut S, Christianen PCM, Vanmaekelbergh D, de Mello Donega C, Rivas JG, Koenraad PM, Silov AY. Fröhlich interaction dominated by a single phonon mode in CsPbBr 3. Nat Commun 2021; 12:5844. [PMID: 34615880 PMCID: PMC8494801 DOI: 10.1038/s41467-021-26192-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 09/17/2021] [Indexed: 12/02/2022] Open
Abstract
The excellent optoelectronic performance of lead halide perovskites has generated great interest in their fundamental properties. The polar nature of the perovskite lattice means that electron-lattice coupling is governed by the Fröhlich interaction. Still, considerable ambiguity exists regarding the phonon modes that participate in this crucial mechanism. Here, we use multiphonon Raman scattering and THz time-domain spectroscopy to investigate Fröhlich coupling in CsPbBr3. We identify a longitudinal optical phonon mode that dominates the interaction, and surmise that this mode effectively defines exciton-phonon scattering in CsPbBr3, and possibly similar materials. It is additionally revealed that the observed strength of the Fröhlich interaction is significantly higher than the expected intrinsic value for CsPbBr3, and is likely enhanced by carrier localization in the colloidal perovskite nanocrystals. Our experiments also unearthed a dipole-related dielectric relaxation mechanism which may impact transport properties. Electron-phonon interaction is essential for understanding electronic and optical properties of lead halide perovskites. Here, using multiphonon Raman scattering and THz time-domain spectroscopy, the authors characterize the full phonon spectrum of CsPbBr3 and identify a single phonon mode that dominates electron-phonon scattering.
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Affiliation(s)
- Claudiu M Iaru
- Department of Applied Physics and Institute for Photonic Integration, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands.
| | - Annalisa Brodu
- Condensed Matter and Interfaces, Debye Institute for Nanomaterials Science, Utrecht University, Princetonplein 1, 3508 TA, Utrecht, The Netherlands
| | - Niels J J van Hoof
- Department of Applied Physics and Institute for Photonic Integration, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands
| | - Stan E T Ter Huurne
- Department of Applied Physics and Institute for Photonic Integration, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands
| | - Jonathan Buhot
- HH Wills Laboratory, University of Bristol, Bristol, BS8 1TL, UK.,High Field Magnet Laboratory (HFML - EMFL), Radboud University, 6525 ED, Nijmegen, The Netherlands
| | - Federico Montanarella
- Condensed Matter and Interfaces, Debye Institute for Nanomaterials Science, Utrecht University, Princetonplein 1, 3508 TA, Utrecht, The Netherlands
| | - Sophia Buhbut
- Condensed Matter and Interfaces, Debye Institute for Nanomaterials Science, Utrecht University, Princetonplein 1, 3508 TA, Utrecht, The Netherlands
| | - Peter C M Christianen
- High Field Magnet Laboratory (HFML - EMFL), Radboud University, 6525 ED, Nijmegen, The Netherlands
| | - Daniël Vanmaekelbergh
- Condensed Matter and Interfaces, Debye Institute for Nanomaterials Science, Utrecht University, Princetonplein 1, 3508 TA, Utrecht, The Netherlands
| | - Celso de Mello Donega
- Condensed Matter and Interfaces, Debye Institute for Nanomaterials Science, Utrecht University, Princetonplein 1, 3508 TA, Utrecht, The Netherlands
| | - Jaime Gòmez Rivas
- Department of Applied Physics and Institute for Photonic Integration, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands
| | - Paul M Koenraad
- Department of Applied Physics and Institute for Photonic Integration, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands
| | - Andrei Yu Silov
- Department of Applied Physics and Institute for Photonic Integration, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands.
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16
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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: 379] [Impact Index Per Article: 126.3] [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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17
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Das A, Mishra K, Ghosh S. Revealing Explicit Microsecond Carrier Diffusion from One Emission Center to Another in an All-Inorganic Perovskite Nanocrystal. J Phys Chem Lett 2021; 12:5413-5422. [PMID: 34080871 DOI: 10.1021/acs.jpclett.1c01154] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Blinking of freely diffusing CsPbBr3 nanocrystals (NCs) is studied using fluorescence lifetime correlation spectroscopy (FLCS). Emitted photons from each NCs are assigned to an emission state (exciton or trap) based on their lifetime. Subsequently, an intrastate autocorrelation function (ACF) and an interstate cross-correlation function (CCF) are constructed. Fitting of the AFCs with an analytical model shows that, at low excitation power, the microsecond blinking timescale of the exciton state matches well with that of the trap state. Most interestingly, both of those timescales further correlate with the microsecond growth timescale of the CCF. The strong anti-correlation of the CCF along with the stretched exponential nature of the blinking kinetics confirms the involvement of carrier diffusion and dispersive trap states in NC blinking. At high excitation power, enhanced sample heterogeneity causes a more dispersive blinking. To the best of our knowledge, this is the first report of a NC blinking study using a single-molecule-based FLCS technique.
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Affiliation(s)
- Ayendrila Das
- School of Chemical Sciences, National Institute of Science Education and Research, Homi Bhabha National Institute (HBNI), Khurda 752050, Odisha, India
| | - Krishna Mishra
- School of Chemical Sciences, National Institute of Science Education and Research, Homi Bhabha National Institute (HBNI), Khurda 752050, Odisha, India
| | - Subhadip Ghosh
- School of Chemical Sciences, National Institute of Science Education and Research, Homi Bhabha National Institute (HBNI), Khurda 752050, Odisha, India
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18
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Palstra I, de Buy Wenniger IM, Patra BK, Garnett EC, Koenderink AF. Intermittency of CsPbBr 3 Perovskite Quantum Dots Analyzed by an Unbiased Statistical Analysis. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2021; 125:12061-12072. [PMID: 34276863 PMCID: PMC8282187 DOI: 10.1021/acs.jpcc.1c01671] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 05/05/2021] [Indexed: 06/13/2023]
Abstract
We analyze intermittency in intensity and fluorescence lifetime of CsPbBr3 perovskite quantum dots by applying unbiased Bayesian inference analysis methods. We apply change-point analysis (CPA) and a Bayesian state clustering algorithm to determine the timing of switching events and the number of states between which switching occurs in a statistically unbiased manner, which we have benchmarked particularly to apply to highly multistate emitters. We conclude that perovskite quantum dots display a plethora of gray states in which brightness, broadly speaking, correlates inversely with decay rate, confirming the multiple recombination centers model. We leverage the CPA partitioning analysis to examine aging and memory effects. We find that dots tend to return to the bright state before jumping to a dim state and that when choosing a dim state, they tend to explore the entire set of states available.
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Affiliation(s)
- Isabelle
M. Palstra
- Institute
of Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
- Center
for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
| | | | - Biplab K. Patra
- Center
for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
| | - Erik C. Garnett
- Center
for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
| | - A. Femius Koenderink
- Center
for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
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19
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Perez CM, Ghosh D, Prezhdo O, Tretiak S, Neukirch AJ. Excited-State Properties of Defected Halide Perovskite Quantum Dots: Insights from Computation. J Phys Chem Lett 2021; 12:1005-1011. [PMID: 33470811 DOI: 10.1021/acs.jpclett.0c03317] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
CsPbBr3 quantum dots (QDs) have been recently suggested for their application as bright green light-emitting diodes (LEDs); however, their optical properties are yet to be fully understood and characterized. In this work, we utilize time-dependent density functional theory to analyze the ground and excited states of the CsPbBr3 clusters in the presence of various low formation energy vacancy defects. Our study finds that the QD perovskites retain their defect tolerance with limited perturbance to the simulated UV-vis spectra. The exception to this general trend is that Br vacancies must be avoided, as they cause molecular orbital localization, resulting in trap states and lower LED performance. Blinking will likely still plague CsPbBr3 QDs, given that the charged defects critically perturb the spectra via red-shifting and lower absorbance. Our study provides insight into the tunability of CsPbBr3 QDs optical properties by understanding the nature of the electronic excitations and guiding improved development for high-performance LEDs.
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Affiliation(s)
- Carlos Mora Perez
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
- Theoretical Physics and Chemistry of Materials, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Dibyajyoti Ghosh
- Theoretical Physics and Chemistry of Materials, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
- Center for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Oleg Prezhdo
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Sergei Tretiak
- Theoretical Physics and Chemistry of Materials, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Amanda J Neukirch
- Theoretical Physics and Chemistry of Materials, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
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20
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Chen W, Gan Z, Green MA, Jia B, Wen X. Revealing Dynamic Effects of Mobile Ions in Halide Perovskite Solar Cells Using Time-Resolved Microspectroscopy. SMALL METHODS 2021; 5:e2000731. [PMID: 34927806 DOI: 10.1002/smtd.202000731] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/21/2020] [Indexed: 06/14/2023]
Abstract
Halide perovskites are promising candidate materials for the next generation high-efficiency optoelectronic devices. Since perovskites are electronic-ionic mixed conductors, ion dynamics have a critical impact on the performance and stability of perovskite-based applications. However, comprehensively understanding ionic dynamics is challenging, particularly on nanoscale imaging of ionic dynamics in perovskites. In this review, mobile ion dynamics in halide perovskites investigated via luminescence spectroscopy combined with confocal microscopy are discussed, including mobile ion induced fluorescence quenching, phase segregation in mixed halide hybrid perovskite, and mobile ion accumulation at the interface in perovskite devices. Steady-state and time-resolved luminescence imaging techniques, combined with confocal microscopy, are unique tools for probing ionic dynamics in perovskites, providing invaluable insights on ionic dynamics in nanoscale resolution, along with a wide temporal range from picoseconds to hours. The works in this review are not only for understanding mobile ions to improve the design of perovskite-based devices but also foster the development of microspectroscopic methodologies in a broader solid-state physics context of investigating ionic transports in polycrystalline materials.
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Affiliation(s)
- Weijian Chen
- Centre for Translational Atomaterials, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Kensington, NSW, 2052, Australia
| | - Zhixing Gan
- Center for Future Optoelectronic Functional Materials, School of Computer and Electronic Information/School of Artificial Intelligence, Nanjing Normal University, Nanjing, 210023, P. R. China
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Martin A Green
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Kensington, NSW, 2052, Australia
| | - Baohua Jia
- Centre for Translational Atomaterials, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia
| | - Xiaoming Wen
- Centre for Translational Atomaterials, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia
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21
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Yadav SK, Grandhi GK, Dubal DP, de Mello JC, Otyepka M, Zbořil R, Fischer RA, Jayaramulu K. Metal Halide Perovskite@Metal-Organic Framework Hybrids: Synthesis, Design, Properties, and Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2004891. [PMID: 33125820 DOI: 10.1002/smll.202004891] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 09/28/2020] [Indexed: 06/11/2023]
Abstract
Metal halide perovskites (MHPs) have excellent optoelectronic and photovoltaic applications because of their cost-effectiveness, tunable emission, high photoluminescence quantum yields, and excellent charge carrier properties. However, the potential applications of the entire MHP family are facing a major challenge arising from its weak resistance to moisture, polar solvents, temperature, and light exposure. A viable strategy to enhance the stability of MHPs could lie in their incorporation into a porous template. Metal-organic frameworks (MOFs) have outstanding properties, with a unique network of ordered/functional pores, which render them promising for functioning as such a template, accommodating a wide range of MHPs to the nanosized region, alongside minimizing particle aggregation and enhancing the stability of the entrapped species. This review highlights recent advances in design strategies, synthesis, characterization, and properties of various hybrids of MOFs with MHPs. Particular attention is paid to a critical review of the emergence of MHP@MOF for comprehensive studies of next-generation materials for various technological applications including sensors, photocatalysis, encryption/decryption, light-emitting diodes, and solar cells. Finally, by summarizing the state-of-the-art, some promising future applications of reported hybrids are proposed. Considering the inherent correlation and synergic functionalities of MHPs and MOFs, further advancement; new functional materials; and applications can be achieved through designing MHP@MOF hybrids.
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Affiliation(s)
- Surendra K Yadav
- Department of Chemistry, Norwegian University of Science and Technology (NTNU), Trondheim, NO-7491, Norway
| | - G Krishnamurthy Grandhi
- Chemistry and Advanced Materials Group, Faculty of Engineering and Natural Sciences, Tampere University, P.O. Box 692, Tampere, 33014, Finland
| | - Deepak P Dubal
- School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4001, Australia
| | - John C de Mello
- Department of Chemistry, Norwegian University of Science and Technology (NTNU), Trondheim, NO-7491, Norway
| | - Michal Otyepka
- Regional Centre of Advanced Technologies and Materials, Faculty of Science, Palacky University, Šlechtitelů 27, Olomouc, 783 71, Czech Republic
| | - Radek Zbořil
- Regional Centre of Advanced Technologies and Materials, Faculty of Science, Palacky University, Šlechtitelů 27, Olomouc, 783 71, Czech Republic
| | - Roland A Fischer
- Chair of Inorganic and Metal-Organic Chemistry, Department of Chemistry and Catalysis Research Centre, Technical University of Munich, Garching, 85748, Germany
| | - Kolleboyina Jayaramulu
- Regional Centre of Advanced Technologies and Materials, Faculty of Science, Palacky University, Šlechtitelů 27, Olomouc, 783 71, Czech Republic
- Head of the Department, Department of Chemistry, Indian Institute of Technology Jammu, Jammu, Jammu & Kashmir, 181221, India
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22
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Kundu K, Acharyya P, Maji K, Sasmal R, Agasti SS, Biswas K. Synthesis and Localized Photoluminescence Blinking of Lead‐Free 2D Nanostructures of Cs
3
Bi
2
I
6
Cl
3
Perovskite. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005966] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Kaushik Kundu
- New Chemistry Unit and School of Advanced Materials Bangalore 560064 India
- Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Jakkur P.O. Bangalore 560064 India
| | - Paribesh Acharyya
- New Chemistry Unit and School of Advanced Materials Bangalore 560064 India
- Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Jakkur P.O. Bangalore 560064 India
| | - Krishnendu Maji
- New Chemistry Unit and School of Advanced Materials Bangalore 560064 India
- Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Jakkur P.O. Bangalore 560064 India
| | - Ranjan Sasmal
- New Chemistry Unit and School of Advanced Materials Bangalore 560064 India
- Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Jakkur P.O. Bangalore 560064 India
| | - Sarit S. Agasti
- New Chemistry Unit and School of Advanced Materials Bangalore 560064 India
- Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Jakkur P.O. Bangalore 560064 India
| | - Kanishka Biswas
- New Chemistry Unit and School of Advanced Materials Bangalore 560064 India
- Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Jakkur P.O. Bangalore 560064 India
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23
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Kundu K, Acharyya P, Maji K, Sasmal R, Agasti SS, Biswas K. Synthesis and Localized Photoluminescence Blinking of Lead-Free 2D Nanostructures of Cs 3 Bi 2 I 6 Cl 3 Perovskite. Angew Chem Int Ed Engl 2020; 59:13093-13100. [PMID: 32374512 DOI: 10.1002/anie.202005966] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Indexed: 11/10/2022]
Abstract
Two-dimensional (2D) lead-free halide perovskites have generated enormous perception in the field of optoelectronics due to their fascinating optical properties. However, an in-depth understanding on their shape-controlled charge-carrier recombination dynamics is still lacking, which could be resolved by exploring the photoluminescence (PL) blinking behaviour at the single-particle level. Herein, we demonstrate, for the first time, the synthesis of nanocrystals (NCs) and 2D nanosheets (NSs) of layered mixed halide, Cs3 Bi2 I6 Cl3 , by solution-based method. We applied fluorescence microscopy and super-resolution optical imaging at single-particle level to investigate their morphology-dependent PL properties. Narrow emission line widths and passivation of non-radiative defects were evidenced for 2D layered nanostructures, whereas the activation of shallow trap states was recognized at 77 K. Interestingly, individual NCs were found to display temporal intermittency (blinking) in PL emission. On the other hand, NS showed temporal PL intensity fluctuations within localized domains of the crystal. In addition, super-resolution optical image of the NS from localization-based method showed spatial inhomogeneity of the PL intensity within perovskite crystal.
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Affiliation(s)
- Kaushik Kundu
- New Chemistry Unit and School of Advanced Materials, Bangalore, 560064, India.,Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bangalore, 560064, India
| | - Paribesh Acharyya
- New Chemistry Unit and School of Advanced Materials, Bangalore, 560064, India.,Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bangalore, 560064, India
| | - Krishnendu Maji
- New Chemistry Unit and School of Advanced Materials, Bangalore, 560064, India.,Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bangalore, 560064, India
| | - Ranjan Sasmal
- New Chemistry Unit and School of Advanced Materials, Bangalore, 560064, India.,Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bangalore, 560064, India
| | - Sarit S Agasti
- New Chemistry Unit and School of Advanced Materials, Bangalore, 560064, India.,Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bangalore, 560064, India
| | - Kanishka Biswas
- New Chemistry Unit and School of Advanced Materials, Bangalore, 560064, India.,Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur P.O., Bangalore, 560064, India
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24
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Zhao B, Zhu L, Sun L, Wang S, Lu J, Zhang J, Han Q, Dong H, Tang B, Zhou B, Liu F, Shen X, Lu W. Strong fluorescence blinking of large-size all-inorganic perovskite nano-spheres. NANOTECHNOLOGY 2020; 31:215204. [PMID: 32015226 DOI: 10.1088/1361-6528/ab7250] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We demonstrated strong fluorescence blinking on large all-inorganic perovskite (CsPbBr3) nano-spheres. By performing (time-resolved) micro-photoluminescence (μ-PL) measurements, the unique blinking characteristics of the as-grown nano-spheres with diameters of hundred nanometers, are clearly observed. Blinking has no obvious on/off states, which is different from the blinking characteristics of quantum dots. It is believed that the blinking of fluorescence is caused by metastable defect-induced trapping of carriers on the surface of the nano-spheres, because dramatically suppressed fluorescence blinking and the decay rates of ultrafast carriers are realized by surface passivation of the nano-spheres. Surface defects are closely related to the ambient atmosphere, which has been further confirmed by PL measurements of the as-grown nano-spheres in vacuum. Additionally, we also found that the fluorescence blinking was significantly suppressed as the sample size increased, which can be attributed to the large-size induced average effect on fluorescence blinking. These results may be important for understanding the mechanism of the fluorescence blinking of perovskite materials and for developing optical devices with good fluorescence stability.
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Affiliation(s)
- Binbin Zhao
- Department of Physics, Shanghai Normal University, Shanghai, 200234, People's Republic of China. State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, 200083, People's Republic of China
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25
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Hou L, Zhao C, Yuan X, Zhao J, Krieg F, Tamarat P, Kovalenko MV, Guo C, Lounis B. Memories in the photoluminescence intermittency of single cesium lead bromide nanocrystals. NANOSCALE 2020; 12:6795-6802. [PMID: 32181469 DOI: 10.1039/d0nr00633e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Single cesium lead bromide (CsPbBr3) nanocrystals show strong photoluminescence intermittency, with on- and off- dwelling times following power-law distributions. We investigate the correlations for successive on-times and successive off-times, and find a memory effect in the photoluminescence intermittency of such inorganic perovskite nanocrystals. This memory effect is not sensitive to the nature of the surface capping ligand and the embedding polymer. These observations suggest that photoluminescence intermittency and its memory are mainly controlled by intrinsic traps in the nanocrystals. Our findings will help optimizing light-emitting devices based on these perovskite nanocrystals.
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Affiliation(s)
- Lei Hou
- Université de Bordeaux, LP2N, Talence, France.
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26
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Mandal S, Mukherjee S, De CK, Roy D, Ghosh S, Mandal PK. Extent of Shallow/Deep Trap States beyond the Conduction Band Minimum in Defect-Tolerant CsPbBr 3 Perovskite Quantum Dot: Control over the Degree of Charge Carrier Recombination. J Phys Chem Lett 2020; 11:1702-1707. [PMID: 32040316 DOI: 10.1021/acs.jpclett.0c00385] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Perovskite quantum dots (PQDs) are known to be defect-tolerant, possessing a clean band gap with optically inactive benign defect states. However, we show that there exist significant deep trap states beyond the conduction band minimum, although the extent of shallow trap states is observed to be minimal. The extent of deep trap states beyond the conduction band minimum seems to be significant in PQDs; however, the extent is less than that of even optically robust CdSe- and InP-based core/alloy-shell QDs. In-depth analyses based on ultrafast transient absorption and ultrasensitive single-particle spectroscopic investigations decode the underlying degree of charge carrier recombination in CsPbBr3 PQDs, which is quite important for energy applications.
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27
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Trinh CT, Minh DN, Ahn KJ, Kang Y, Lee KG. Verification of Type-A and Type-B-HC Blinking Mechanisms of Organic-Inorganic Formamidinium Lead Halide Perovskite Quantum Dots by FLID Measurements. Sci Rep 2020; 10:2172. [PMID: 32034230 PMCID: PMC7005873 DOI: 10.1038/s41598-020-58926-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 01/21/2020] [Indexed: 12/04/2022] Open
Abstract
Organic–inorganic halide perovskite nanocrystals or quantum dots (PQDs) are excellent candidates for optoelectronic applications, such as lasers, solar cells, light emitting diodes, and single photon sources. However, the potential applications of PQDs can expand once the photoluminescence, and in particular, the blinking behaviors of single PQDs are understood. Although the blinking of PQDs has been studied extensively recently, the underlying mechanism of the blinking behaviors is still under debate. In this study, we confirmed that type-A and type-B-HC (hot carrier) blinking, contributed to PQD blinking using their fluorescence lifetime intensity distribution (FLID). Type-B-HC blinking was experimentally confirmed for the first time for formamidinium based PQDs, and the simultaneous contributions of type-A and type-B blinking were clearly specified. Further, we related different FLID data to the ON/OFF time distribution as distinct features of different blinking types. We also emphasized that detection capability was crucial for correctly elucidating the blinking mechanism.
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Affiliation(s)
- Cong Tai Trinh
- Department of Physics, Hanyang University, Seoul, 04763, Republic of Korea
| | - Duong Nguyen Minh
- Department of Chemistry, Research Institute for Natural Sciences, Institute of Nano Science and Technology, Hanyang University, Seoul, 04763, Republic of Korea
| | - Kwang Jun Ahn
- Department of Physics and Department of Energy Systems Research, Ajou University, Suwon, 16499, Republic of Korea
| | - Youngjong Kang
- Department of Chemistry, Research Institute for Natural Sciences, Institute of Nano Science and Technology, Hanyang University, Seoul, 04763, Republic of Korea
| | - Kwang-Geol Lee
- Department of Physics, Hanyang University, Seoul, 04763, Republic of Korea.
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28
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Wang D, Cavin J, Yin B, Thind AS, Borisevich AY, Mishra R, Sadtler B. Role of Solid-State Miscibility during Anion Exchange in Cesium Lead Halide Nanocrystals Probed by Single-Particle Fluorescence. J Phys Chem Lett 2020; 11:952-959. [PMID: 31945295 DOI: 10.1021/acs.jpclett.9b03633] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
In this Letter, we used fluorescence microscopy to image the reversible transformation of individual CsPbCl3 nanocrystals to CsPbBr3, which enables us to quantify heterogeneity in reactivity among hundreds of nanocrystals prepared within the same batch. We observed a wide distribution of waiting times for individual nanocrystals to react as has been seen previously for cation exchange and ion intercalation. However, a significant difference for this reaction is that the switching times for changes in fluorescence intensity are dependent on the concentration of substitutional halide ions in solution (i.e., Br- or Cl-). On the basis of the high solid-state miscibility between CsPbCl3 and CsPbBr3, we develop a model in which the activation energy for anion exchange depends on the density of exchanged ions in the nanocrystal. The heterogeneity in reaction kinetics observed among individual nanocrystals limits the compositional uniformity that can be achieved in luminescent CsPbCl3-xBrx nanocrystals prepared by anion exchange.
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Affiliation(s)
- Dong Wang
- Department of Chemistry , Washington University in St. Louis , St. Louis , Missouri 63130 , United States
| | - John Cavin
- Department of Physics , Washington University in St. Louis , St. Louis , Missouri 63130 , United States
| | - Bo Yin
- Institute of Materials Science & Engineering , Washington University in St. Louis , St. Louis , Missouri 63130 , United States
| | - Arashdeep S Thind
- Institute of Materials Science & Engineering , Washington University in St. Louis , St. Louis , Missouri 63130 , United States
| | - Albina Y Borisevich
- Center for Nanophase Materials Sciences , Oak Ridge National Laboratory , Oak Ridge , Tennnessee , 37831 , United States
| | - Rohan Mishra
- Institute of Materials Science & Engineering , Washington University in St. Louis , St. Louis , Missouri 63130 , United States
- Department of Mechanical Engineering and Materials Science , Washington University in St. Louis , St. Louis , Missouri 63130 , United States
| | - Bryce Sadtler
- Department of Chemistry , Washington University in St. Louis , St. Louis , Missouri 63130 , United States
- Institute of Materials Science & Engineering , Washington University in St. Louis , St. Louis , Missouri 63130 , United States
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29
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Park J, Kim Y, Ham S, Woo JY, Kim T, Jeong S, Kim D. A relationship between the surface composition and spectroscopic properties of cesium lead bromide (CsPbBr 3) perovskite nanocrystals: focusing on photoluminescence efficiency. NANOSCALE 2020; 12:1563-1570. [PMID: 31859337 DOI: 10.1039/c9nr08516e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We have previously developed CsPbBr3 NCs exhibiting a tremendously high photoluminescence (PL) and structural stability by adding ZnBr2. However, understanding of these outstanding properties is lacking due to the absence of spectroscopic analyses, such as spectral or dynamical characteristics. In this work, we conducted a comparative analysis of photophysical properties for conventional-CsPbBr3 NCs and ZnBr2-CsPbBr3 NCs. First, we analyzed the blinking traces by comparing the single crystal PL intermittency. It has been found that the PL quantum yield of CsPbBr3 NCs is gradually decreasing at the ensemble level, resulting from a significant activation of the Auger-induced blinking. Furthermore, the time-resolved TA dynamics supports the fact that Auger-type energy transfer accelerates the hot carrier cooling time, and thereby the Auger-induced blinking behavior in the band-edge state becomes dominant over time. Here, ZnBr2-CsPbBr3 NCs showed a low multiexciton Auger amplitude and therefore had a stable PL emission compared with conventional-CsPbBr3 NCs. Finally, we suggest that both NCs differ in intraband spacing possibly due to capping ligands, finally leading to a suppressed Auger process and higher stability for ZnBr2-CsPbBr3 NCs.
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Affiliation(s)
- Jumi Park
- Department of Chemistry, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea.
| | - Youngsik Kim
- Department of Energy Science, Sungkyunkwan University, 2066 Seobu-Ro, Jangan-Gu, Suwon, Gyeonggi-do 16419, Republic of Korea.
| | - Sujin Ham
- Department of Chemistry, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea.
| | - Ju Young Woo
- Micro/Nano Scale Manufacturing Group, Korea Institute of Industrial Technology, 143 Hanggaulro, Sangrok-gu, Ansan, Gyeonggi-do 15588, Republic of Korea
| | - Taehee Kim
- Department of Chemistry, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea.
| | - Sohee Jeong
- Department of Energy Science, Sungkyunkwan University, 2066 Seobu-Ro, Jangan-Gu, Suwon, Gyeonggi-do 16419, Republic of Korea.
| | - Dongho Kim
- Department of Chemistry, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea.
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30
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Yoshimura H, Yamauchi M, Masuo S. In Situ Observation of Emission Behavior during Anion-Exchange Reaction of a Cesium Lead Halide Perovskite Nanocrystal at the Single-Nanocrystal Level. J Phys Chem Lett 2020; 11:530-535. [PMID: 31814415 DOI: 10.1021/acs.jpclett.9b03204] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Postsynthesis anion-exchange reaction of cesium lead halide (CsPbX3; X = Cl, Br, and I) perovskite nanocrystals (NCs) has emerged as a unique strategy to control band gap. Recently, the partially anion-exchanged CsPb(Br/I)3 NC was reported to form an inhomogeneously alloyed heterostructure, which could possibly form some emission sites depending on the halide composition in the single NC. In this work, we observed the in situ emission behavior of single CsPb(Br/I)3 NCs during the anion-exchange reaction. Photon-correlation measurements of the single NCs revealed that the mixed halide CsPb(Br/I)3 NC exhibited single-photon emission. Even when irradiated with an intense excitation laser, the single NC exhibited single-photon emission with a photoluminescence spectrum of a single peak. These results suggested that the heterohalide compositions of the CsPb(Br/I)3 NC do not form any emission sites with different band gap energies; instead, the NC forms emission sites with uniform band gap energy as a whole NC via quantum confinement.
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Affiliation(s)
- Hiroyuki Yoshimura
- Department of Applied Chemistry for Environment , Kwansei Gakuin University , 2-1 Gakuen , Sanda , Hyogo 669-1337 , Japan
| | - Mitsuaki Yamauchi
- Department of Applied Chemistry for Environment , Kwansei Gakuin University , 2-1 Gakuen , Sanda , Hyogo 669-1337 , Japan
| | - Sadahiro Masuo
- Department of Applied Chemistry for Environment , Kwansei Gakuin University , 2-1 Gakuen , Sanda , Hyogo 669-1337 , Japan
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31
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Ahmed T, Seth S, Samanta A. Mechanistic Investigation of the Defect Activity Contributing to the Photoluminescence Blinking of CsPbBr 3 Perovskite Nanocrystals. ACS NANO 2019; 13:13537-13544. [PMID: 31714741 DOI: 10.1021/acsnano.9b07471] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Exploration of the full potential of the perovskite nanocrystals (NCs) for different applications requires a thorough understanding of the pathways of recombination of the photogenerated charge carriers and associated dynamics. In this work, we have tracked the recombination routes of the charge carriers by probing photoluminescence (PL) intermittency of the immobilized and freely diffusing single CsPbBr3 NCs employing a time-tagged-time-resolved method. The immobilized single CsPbBr3 NCs show a complex PL time-trace, a careful analysis of which reveals that nonradiative band-edge recombination through trap states, trion recombination, and trapping of the hot carriers contribute to the blinking behavior of any given NC. A drastically suppressed PL blinking observed for the NCs treated with a tetrafluoroborate salt indicates elimination of most of the undesired recombination processes. A fluorescence correlation spectroscopy (FCS) study on the freely diffusing single NCs shows that enhanced PL and suppressed blinking of the treated particles are the outcome of an increase in per-particle brightness, not due to any increase in the number of particles undergoing "off"-"on" transition in the observation volume. The mechanistic details obtained from this study on the origin of blinking in CsPbBr3 NCs provide deep insight into the radiative and nonradiative charge carrier recombination pathways in these important materials, and this knowledge is expected to be useful for better design and development of bright photoluminescent samples of this class for optoelectronic applications.
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Affiliation(s)
- Tasnim Ahmed
- School of Chemistry , University of Hyderabad , Hyderabad 500046 , India
| | - Sudipta Seth
- School of Chemistry , University of Hyderabad , Hyderabad 500046 , India
| | - Anunay Samanta
- School of Chemistry , University of Hyderabad , Hyderabad 500046 , India
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32
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Guo T, Bose R, Zhou X, Gartstein YN, Yang H, Kwon S, Kim MJ, Lutfullin M, Sinatra L, Gereige I, Al-Saggaf A, Bakr OM, Mohammed OF, Malko AV. Delayed Photoluminescence and Modified Blinking Statistics in Alumina-Encapsulated Zero-Dimensional Inorganic Perovskite Nanocrystals. J Phys Chem Lett 2019; 10:6780-6787. [PMID: 31613634 DOI: 10.1021/acs.jpclett.9b02594] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
We demonstrate enhancement of the photoluminescence (PL) properties of individual zero-dimensional (0D) Cs4PbBr6 perovskite nanocrystals (PNCs) upon encapsulation by alumina using an appropriately modified atomic layer deposition method. In addition to the increased PL intensity and improved long-term stability of encapsulated PNCs, our single-particle studies reveal substantial changes in the PL blinking statistics and the persistent appearance of the long-lived, "delayed" PL components. The blinking patterns exhibit a modification from the fast switching between fluorescent ON and OFF states found in bare PNCs to a behavior with longer ON states and more isolated OFF states in alumina-encapsulated PNCs. Controlled exposure of 0D nanocrystals to moisture suggests that the observed PL lifetime changes may be related to water-induced "reservoir" states that allow for longer-lived charge storage with subsequent back-feeding into the emissive states. Viable encapsulation of PNCs with metal oxides that can preserve and even enhance their PL properties can be utilized in the fabrication of extended structures on their basis for optoelectronic and photonic applications.
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Affiliation(s)
| | | | | | | | - Haoze Yang
- Division of Physical Sciences and Engineering , King Abdullah University of Science and Technology , Thuwal 23955-6900 , Kingdom of Saudi Arabia
| | | | | | - Marat Lutfullin
- Quantum Solutions LLC , Thuwal 23955-6900 , Kingdom of Saudi Arabia
| | - Lutfan Sinatra
- Quantum Solutions LLC , Thuwal 23955-6900 , Kingdom of Saudi Arabia
| | - Issam Gereige
- Saudi Aramco Research & Development Center , Dhahran 31311 , Kingdom of Saudi Arabia
| | - Ahmed Al-Saggaf
- Saudi Aramco Research & Development Center , Dhahran 31311 , Kingdom of Saudi Arabia
| | - Osman M Bakr
- Division of Physical Sciences and Engineering , King Abdullah University of Science and Technology , Thuwal 23955-6900 , Kingdom of Saudi Arabia
| | - Omar F Mohammed
- Division of Physical Sciences and Engineering , King Abdullah University of Science and Technology , Thuwal 23955-6900 , Kingdom of Saudi Arabia
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33
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Zhang L, Lv B, Yang H, Xu R, Wang X, Xiao M, Cui Y, Zhang J. Quantum-confined stark effect in the ensemble of phase-pure CdSe/CdS quantum dots. NANOSCALE 2019; 11:12619-12625. [PMID: 31233067 DOI: 10.1039/c9nr03061a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Colloidal semiconductor quantum dots (QDs) have recently attracted great attention in electric field sensing via the quantum-confined Stark effect (QCSE), but they suffer from the random local electric field around the charged QDs through the Auger process or defect traps. Here, QCSE in the ensemble of phase-pure wurtzite CdSe/CdS QDs was studied by applying a uniform external electric field. We observed clear field-dependent photoluminescence (PL) and absorption characteristics in thick-shell CdSe/CdS QDs with 11 CdS monolayers (11 MLs) including a pronounced spectral redshift in PL of ∼2.3 nm and absorption of ∼2.1 nm. The time-dependent PL intensity traces implied that the thick-shell QDs were conducive to realize the Stark shift in QD ensembles due to the effective suppression of the main sources of the local field. These findings were in stark contrast to those of moderate-shell (5 MLs) and ultrathick-shell (15 MLs) CdSe/CdS QDs. The measurement value of exciton polarizability was smaller than the theoretical value, which may be influenced by very few exciton traps. Moreover, the amplified stimulated emission also exhibited obvious optical modulations under the electric field with decreased emission intensity and an increased ultrafast lifetime. Finally, the temporal evolution of the multiexciton process in thick-shell CdSe/CdS QDs indicated that the multiexciton state induced a higher energy state near the band edge, which may weaken the QCSE of a single exciton. Therefore, it was demonstrated that efficient field control over the optical properties of these nanomaterials is feasible and this can open up potential applications in field-controlled electro-optic modulators.
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Affiliation(s)
- Lei Zhang
- Advanced Photonics Center, Southeast University, Nanjing 210096, China.
| | - Bihu Lv
- National Laboratory of Solid State Microstructures, School of Physics, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China.
| | - Hongyu Yang
- Advanced Photonics Center, Southeast University, Nanjing 210096, China.
| | - Ruilin Xu
- Advanced Photonics Center, Southeast University, Nanjing 210096, China.
| | - Xiaoyong Wang
- National Laboratory of Solid State Microstructures, School of Physics, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China.
| | - Min Xiao
- National Laboratory of Solid State Microstructures, School of Physics, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China.
| | - Yiping Cui
- Advanced Photonics Center, Southeast University, Nanjing 210096, China.
| | - Jiayu Zhang
- Advanced Photonics Center, Southeast University, Nanjing 210096, China.
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Mondal N, De A, Das S, Paul S, Samanta A. Ultrafast carrier dynamics of metal halide perovskite nanocrystals and perovskite-composites. NANOSCALE 2019; 11:9796-9818. [PMID: 31070653 DOI: 10.1039/c9nr01745c] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Perovskite nanocrystals (NCs), especially those based on cesium lead halides, have emerged in recent years as highly promising materials for efficient solar cells and photonic applications. The key to realization of full potential of these materials lies however in the molecular level understanding of the processes triggered by light. Herein we highlight the knowledge gained from photophysical investigations on these NCs of various sizes and compositions employing primarily the femtosecond pump-probe technique. We show how spectral and temporal characterization of the photo-induced transients provide insight into the mechanism and dynamics of relaxation of hot and thermalized charge carriers through their recombination and trapping. We discuss how the multiple excitons including the charged ones (trions), generated using high pump fluence or photon energy, recombine through the Auger-assisted process. We discussed the harvesting of hot carriers prior to their cooling and band-edge carriers from these perovskite NCs to wide band-gap metal oxides, metal chalcogenide NCs and molecular acceptors. How perovskites can influence the charge carrier dynamics in composites of organic and inorganic semiconductors is also discussed.
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Affiliation(s)
- Navendu Mondal
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India. E-mail:
| | - Apurba De
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India. E-mail:
| | - Somnath Das
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India. E-mail:
| | - Sumanta Paul
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India. E-mail:
| | - Anunay Samanta
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India. E-mail:
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