Hybrid Organic–Inorganic Perovskite Superstructures for Ultrapure Green Emissions

Wen Kiat Chan; Jiawei Chen; Donglei Zhou; Junzhi Ye; Ricardo Javier Vázquez; Cheng Zhou; Guillermo Carlos Bazan; Akshay Rao; Zhongzheng Yu; Timothy Thatt Yang Tan

doi:10.3390/nano13050815

Hybrid Organic–Inorganic Perovskite Superstructures for Ultrapure Green Emissions

Wen Kiat Chan, Jiawei Chen, Donglei Zhou, Junzhi Ye, Ricardo Javier Vázquez, Cheng Zhou, Guillermo Carlos Bazan, Akshay Rao, Zhongzheng Yu^*, Timothy Thatt Yang Tan^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

All inorganic CsPbBr₃ superstructures (SSs) have attracted much research interest due to their unique photophysical properties, such as their large emission red-shifts and super-radiant burst emissions. These properties are of particular interest in displays, lasers and photodetectors. Currently, the best-performing perovskite optoelectronic devices incorporate organic cations (methylammonium (MA), formamidinium (FA)), however, hybrid organic–inorganic perovskite SSs have not yet been investigated. This work is the first to report on the synthesis and photophysical characterization of APbBr₃ (A = MA, FA, Cs) perovskite SSs using a facile ligand-assisted reprecipitation method. At higher concentrations, the hybrid organic–inorganic MA/FAPbBr₃ nanocrystals self-assemble into SSs and produce red-shifted ultrapure green emissions, meeting the requirement of Rec. 2020 displays. We hope that this work will be seminal in advancing the exploration of perovskite SSs using mixed cation groups to further improve their optoelectronic applications.

Original language	English
Article number	815
Journal	Nanomaterials
Volume	13
Issue number	5
DOIs	https://doi.org/10.3390/nano13050815
Publication status	Published - Mar 2023
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2023 by the authors.

ASJC Scopus Subject Areas

General Chemical Engineering
General Materials Science

Keywords

ligand-assisted reprecipitation
organic–inorganic perovskites
superstructures
ultrapure green emissions

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10.3390/nano13050815

Cite this

@article{914a9390f31c456f8fce0ccbd316fb47,

title = "Hybrid Organic–Inorganic Perovskite Superstructures for Ultrapure Green Emissions",

abstract = "All inorganic CsPbBr3 superstructures (SSs) have attracted much research interest due to their unique photophysical properties, such as their large emission red-shifts and super-radiant burst emissions. These properties are of particular interest in displays, lasers and photodetectors. Currently, the best-performing perovskite optoelectronic devices incorporate organic cations (methylammonium (MA), formamidinium (FA)), however, hybrid organic–inorganic perovskite SSs have not yet been investigated. This work is the first to report on the synthesis and photophysical characterization of APbBr3 (A = MA, FA, Cs) perovskite SSs using a facile ligand-assisted reprecipitation method. At higher concentrations, the hybrid organic–inorganic MA/FAPbBr3 nanocrystals self-assemble into SSs and produce red-shifted ultrapure green emissions, meeting the requirement of Rec. 2020 displays. We hope that this work will be seminal in advancing the exploration of perovskite SSs using mixed cation groups to further improve their optoelectronic applications.",

keywords = "ligand-assisted reprecipitation, organic–inorganic perovskites, superstructures, ultrapure green emissions",

author = "Chan, {Wen Kiat} and Jiawei Chen and Donglei Zhou and Junzhi Ye and V{\'a}zquez, {Ricardo Javier} and Cheng Zhou and Bazan, {Guillermo Carlos} and Akshay Rao and Zhongzheng Yu and Tan, {Timothy Thatt Yang}",

note = "Publisher Copyright: {\textcopyright} 2023 by the authors.",

year = "2023",

month = mar,

doi = "10.3390/nano13050815",

language = "English",

volume = "13",

journal = "Nanomaterials",

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AU - Chan, Wen Kiat

AU - Chen, Jiawei

AU - Zhou, Donglei

AU - Ye, Junzhi

AU - Vázquez, Ricardo Javier

AU - Zhou, Cheng

AU - Bazan, Guillermo Carlos

AU - Rao, Akshay

AU - Yu, Zhongzheng

AU - Tan, Timothy Thatt Yang

PY - 2023/3

Y1 - 2023/3

N2 - All inorganic CsPbBr3 superstructures (SSs) have attracted much research interest due to their unique photophysical properties, such as their large emission red-shifts and super-radiant burst emissions. These properties are of particular interest in displays, lasers and photodetectors. Currently, the best-performing perovskite optoelectronic devices incorporate organic cations (methylammonium (MA), formamidinium (FA)), however, hybrid organic–inorganic perovskite SSs have not yet been investigated. This work is the first to report on the synthesis and photophysical characterization of APbBr3 (A = MA, FA, Cs) perovskite SSs using a facile ligand-assisted reprecipitation method. At higher concentrations, the hybrid organic–inorganic MA/FAPbBr3 nanocrystals self-assemble into SSs and produce red-shifted ultrapure green emissions, meeting the requirement of Rec. 2020 displays. We hope that this work will be seminal in advancing the exploration of perovskite SSs using mixed cation groups to further improve their optoelectronic applications.

AB - All inorganic CsPbBr3 superstructures (SSs) have attracted much research interest due to their unique photophysical properties, such as their large emission red-shifts and super-radiant burst emissions. These properties are of particular interest in displays, lasers and photodetectors. Currently, the best-performing perovskite optoelectronic devices incorporate organic cations (methylammonium (MA), formamidinium (FA)), however, hybrid organic–inorganic perovskite SSs have not yet been investigated. This work is the first to report on the synthesis and photophysical characterization of APbBr3 (A = MA, FA, Cs) perovskite SSs using a facile ligand-assisted reprecipitation method. At higher concentrations, the hybrid organic–inorganic MA/FAPbBr3 nanocrystals self-assemble into SSs and produce red-shifted ultrapure green emissions, meeting the requirement of Rec. 2020 displays. We hope that this work will be seminal in advancing the exploration of perovskite SSs using mixed cation groups to further improve their optoelectronic applications.

KW - ligand-assisted reprecipitation

KW - organic–inorganic perovskites

KW - superstructures

KW - ultrapure green emissions

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Hybrid Organic–Inorganic Perovskite Superstructures for Ultrapure Green Emissions

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Keywords

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Hybrid Organic–Inorganic Perovskite Superstructures for Ultrapure Green Emissions

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Bibliographical note

ASJC Scopus Subject Areas

Keywords

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Data on Chemicals and Chemistry Published by Researchers at Nanyang Technological University (Hybrid Organic-Inorganic Perovskite Superstructures for Ultrapure Green Emissions)

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