Blue perovskite LEDs

Mengqi Zhang; Chuantian Zuo; Jianjun Tian; Liming Ding

doi:10.1088/1674-4926/42/7/070201

J. Semicond. > 2021, Volume 42?>?Issue 7?> 070201

RESEARCH HIGHLIGHTS

Blue perovskite LEDs

Mengqi Zhang¹, Chuantian Zuo², Jianjun Tian^1, and Liming Ding^2,

+ Author Affiliations

1. Institute for Advanced Materials Technology, University of Science and Technology Beijing, Beijing 100083, China
2. Center for Excellence in Nanoscience (CAS), Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS), National Center for Nanoscience and Technology, Beijing 100190, China

Author Bio:

Mengqi Zhang received BE in Central South University in 2015 and ME in University of New South Wales in 2020. She is currently a PhD candidate at University of Science and Technology Beijing under the supervision of Professor Jianjun Tian. Her work focuses on perovskite quantum dots synthesis and related optoelectronic devices.

Chuantian Zuo received his PhD in 2018 from National Center for Nanoscience and Technology (CAS) under the supervision of Professor Liming Ding. Then he did postdoctoral research in CSIRO, Australia. Currently, he is an assistant professor in Liming Ding Group. His research focuses on innovative materials and devices.

Jianjun Tian received his PhD from University of Science and Technology Beijing (USTB) in 2007. In 2011–2012, he worked at the University of Washington. Now he is a professor at USTB. He was nominated as the Director of Functional Materials Institute, USTB, in 2015. His research focuses on the development of quantum dots and perovskite materials for optoelectronic applications.

Liming Ding got his PhD from University of Science and Technology of China (was a joint student at Changchun Institute of Applied Chemistry, CAS). He started his research on OSCs and PLEDs in Olle Ingan?s Lab in 1998. Later on, he worked at National Center for Polymer Research, Wright-Patterson Air Force Base and Argonne National Lab (USA). He joined Konarka as a Senior Scientist in 2008. In 2010, he joined National Center for Nanoscience and Technology as a full professor. His research focuses on functional materials and devices. He is RSC Fellow, the nominator for Xplorer Prize, and the Associate Editors for Science Bulletin and Journal of Semiconductors.

Corresponding author: Jianjun Tian, tianjianjun@mater.ustb.edu.cn; Liming Ding, ding@nanoctr.cn

DOI: 10.1088/1674-4926/42/7/070201

References

[1]	Kovalenko M V, Protesescu L, Bodnarchuk M I. Properties and potential optoelectronic applications of lead halide perovskite nanocrystals. Science, 2017, 358, 745 doi: 10.1126/science.aam7093
[2]	Xu W D, Hu Q, Bai S, et al. Rational molecular passivation for high-performance perovskite light-emitting diodes. Nat Photonics, 2019, 13, 418 doi: 10.1038/s41566-019-0390-x
[3]	Kim Y H, Kim S J, Kakekhani A, et al. Comprehensive defect suppression in perovskite nanocrystals for high-efficiency light-emitting diodes. Nat Photonics, 2021, 15, 148 doi: 10.1038/s41566-020-00732-4
[4]	Liu A Q, Bi C H, Guo R Q, et al. Electroluminescence principle and performance improvement of metal halide perovskite light-emitting diodes. Adv Optical Mater, 2021, 9, 2002167 doi: 10.1002/adom.202002167
[5]	Bi C H, Hu J C, Yao Z W, et al. Self-assembled perovskite nanowire clusters for high luminance red light-emitting diodes. Adv Funct Mater, 2020, 30, 2005990 doi: 10.1002/adfm.202005990
[6]	Dong Y T, Wang Y K, Yuan F L, et al. Bipolar-shell resurfacing for blue LEDs based on strongly confined perovskite quantum dots. Nat Nanotechnol, 2020, 15, 668 doi: 10.1038/s41565-020-0714-5
[7]	Chu Z M, Zhao Y, Ma F, et al. Large cation ethylammonium incorporated perovskite for efficient and spectra stable blue light-emitting diodes. Nat Commun, 2020, 11, 4165 doi: 10.1038/s41467-020-17943-6
[8]	Karlsson M, Yi Z Y, Reichert S, et al. Mixed halide perovskites for spectrally stable and high-efficiency blue light-emitting diodes. Nat Commun, 2021, 12, 361 doi: 10.1038/s41467-020-20582-6
[9]	Zheng X P, Yuan S, Liu J K, et al. Chlorine vacancy passivation in mixed halide perovskite quantum dots by organic pseudohalides enables efficient Rec. 2020 blue light-emitting diodes. ACS Energy Lett, 2020, 5, 793 doi: 10.1021/acsenergylett.0c00057
[10]	Bi C H, Yao Z W, Sun X J, et al. Perovskite quantum dots with ultralow trap density by acid etching-driven ligand exchange for high luminance and stable pure-blue light-emitting diodes. Adv Mater, 2021, 33, 2006722 doi: 10.1002/adma.202006722
[11]	Wang C H, Han D B, Wang J H, et al. Dimension control of in situ fabricated CsPbClBr₂ nanocrystal films toward efficient blue light-emitting diodes. Nat Commun, 2020, 11, 6428 doi: 10.1038/s41467-020-20163-7
[12]	Jiang Y Z, Cui M H, Li S S, et al. Reducing the impact of Auger recombination in quasi-2D perovskite light-emitting diodes. Nat Commun, 2021, 12, 336 doi: 10.1038/s41467-020-20555-9

Fig. 1. (Color online) (a) EL spectra for blue PeLEDs. (b) Schematic illustration of the bipolar-shell-stabilized perovskite QDs. (c) EQE for blue-PeLEDs made with bipolar-shell-stabilized QDs. Reproduced with permission^[6], Copyright 2020, Nature Publishing Group. (d) Schematic illustration of the mechanism for halide redistribution. (e) EL spectra (Left) and CIE color coordinates (Right) for VAC-treated, Rb-incorporated PeLEDs. (f) EQE for Rb-device as a function of current density. Reproduced with permission^[8], Copyright 2021, Nature Publishing Group.

DownLoad: Full-Size Img PowerPoint

Fig. 2. (Color online) (a) Schematic illustration of ligand exchange process driven by acid etching. (b) PL for QDs films and EL for PeLEDs. (c) T₅₀ for PeLEDs with an initial luminance of 102 cd m^-2. Reproduced with permission^[10], Copyright 2021, Wiley Publishing Group. (d) Schematic diagram for DPPABr-based and PEABr-based CsPbClBr₂ nanocrystal films. (e) Steady-state PL and absorption spectra for CsPbClBr₂ films. (f) EL spectra for PeLEDs under forward biases of 3.6, 4.4, and 5.2 V. Reproduced with permission^[11], Copyright 2020, Nature Publishing Group.

DownLoad: Full-Size Img PowerPoint

[1]	Kovalenko M V, Protesescu L, Bodnarchuk M I. Properties and potential optoelectronic applications of lead halide perovskite nanocrystals. Science, 2017, 358, 745 doi: 10.1126/science.aam7093
[2]	Xu W D, Hu Q, Bai S, et al. Rational molecular passivation for high-performance perovskite light-emitting diodes. Nat Photonics, 2019, 13, 418 doi: 10.1038/s41566-019-0390-x
[3]	Kim Y H, Kim S J, Kakekhani A, et al. Comprehensive defect suppression in perovskite nanocrystals for high-efficiency light-emitting diodes. Nat Photonics, 2021, 15, 148 doi: 10.1038/s41566-020-00732-4
[4]	Liu A Q, Bi C H, Guo R Q, et al. Electroluminescence principle and performance improvement of metal halide perovskite light-emitting diodes. Adv Optical Mater, 2021, 9, 2002167 doi: 10.1002/adom.202002167
[5]	Bi C H, Hu J C, Yao Z W, et al. Self-assembled perovskite nanowire clusters for high luminance red light-emitting diodes. Adv Funct Mater, 2020, 30, 2005990 doi: 10.1002/adfm.202005990
[6]	Dong Y T, Wang Y K, Yuan F L, et al. Bipolar-shell resurfacing for blue LEDs based on strongly confined perovskite quantum dots. Nat Nanotechnol, 2020, 15, 668 doi: 10.1038/s41565-020-0714-5
[7]	Chu Z M, Zhao Y, Ma F, et al. Large cation ethylammonium incorporated perovskite for efficient and spectra stable blue light-emitting diodes. Nat Commun, 2020, 11, 4165 doi: 10.1038/s41467-020-17943-6
[8]	Karlsson M, Yi Z Y, Reichert S, et al. Mixed halide perovskites for spectrally stable and high-efficiency blue light-emitting diodes. Nat Commun, 2021, 12, 361 doi: 10.1038/s41467-020-20582-6
[9]	Zheng X P, Yuan S, Liu J K, et al. Chlorine vacancy passivation in mixed halide perovskite quantum dots by organic pseudohalides enables efficient Rec. 2020 blue light-emitting diodes. ACS Energy Lett, 2020, 5, 793 doi: 10.1021/acsenergylett.0c00057
[10]	Bi C H, Yao Z W, Sun X J, et al. Perovskite quantum dots with ultralow trap density by acid etching-driven ligand exchange for high luminance and stable pure-blue light-emitting diodes. Adv Mater, 2021, 33, 2006722 doi: 10.1002/adma.202006722
[11]	Wang C H, Han D B, Wang J H, et al. Dimension control of in situ fabricated CsPbClBr₂ nanocrystal films toward efficient blue light-emitting diodes. Nat Commun, 2020, 11, 6428 doi: 10.1038/s41467-020-20163-7
[12]	Jiang Y Z, Cui M H, Li S S, et al. Reducing the impact of Auger recombination in quasi-2D perovskite light-emitting diodes. Nat Commun, 2021, 12, 336 doi: 10.1038/s41467-020-20555-9