High-efficiency, flexible and large-area red/green/blue all-inorganic metal halide perovskite quantum wires-based light-emitting diodes

Yang Bryan Cao; Daquan Zhang; Qianpeng Zhang; Xiao Qiu; Yu Zhou; Swapnadeep Poddar; Yu Fu; Yudong Zhu; Jin-Feng Liao; Lei Shu; Beitao Ren; Yucheng Ding; Bing Han; Zhubing He; Dai-Bin Kuang; Kefan Wang; Haibo Zeng; Zhiyong Fan

doi:10.1038/s41467-023-40150-y

Nature Communications (Aug 2023)

High-efficiency, flexible and large-area red/green/blue all-inorganic metal halide perovskite quantum wires-based light-emitting diodes

Yang Bryan Cao,
Daquan Zhang,
Qianpeng Zhang,
Xiao Qiu,
Yu Zhou,
Swapnadeep Poddar,
Yu Fu,
Yudong Zhu,
Jin-Feng Liao,
Lei Shu,
Beitao Ren,
Yucheng Ding,
Bing Han,
Zhubing He,
Dai-Bin Kuang,
Kefan Wang,
Haibo Zeng,
Zhiyong Fan

Affiliations

Yang Bryan Cao: Department of Electronic & Computer Engineering, The Hong Kong University of Science and Technology, Clear Water Bay
Daquan Zhang: Department of Electronic & Computer Engineering, The Hong Kong University of Science and Technology, Clear Water Bay
Qianpeng Zhang: Department of Electronic & Computer Engineering, The Hong Kong University of Science and Technology, Clear Water Bay
Xiao Qiu: Department of Electronic & Computer Engineering, The Hong Kong University of Science and Technology, Clear Water Bay
Yu Zhou: Department of Electronic & Computer Engineering, The Hong Kong University of Science and Technology, Clear Water Bay
Swapnadeep Poddar: Department of Electronic & Computer Engineering, The Hong Kong University of Science and Technology, Clear Water Bay
Yu Fu: Department of Electronic & Computer Engineering, The Hong Kong University of Science and Technology, Clear Water Bay
Yudong Zhu: Department of Electronic & Computer Engineering, The Hong Kong University of Science and Technology, Clear Water Bay
Jin-Feng Liao: MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat‐sen University
Lei Shu: Department of Electronic & Computer Engineering, The Hong Kong University of Science and Technology, Clear Water Bay
Beitao Ren: Department of Electronic & Computer Engineering, The Hong Kong University of Science and Technology, Clear Water Bay
Yucheng Ding: Department of Electronic & Computer Engineering, The Hong Kong University of Science and Technology, Clear Water Bay
Bing Han: Department of Materials Science and Engineering, Southern University of Science and Technology, No. 1088
Zhubing He: Department of Materials Science and Engineering, Southern University of Science and Technology, No. 1088
Dai-Bin Kuang: MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat‐sen University
Kefan Wang: Henan Provinces Key Laboratory of Photovoltaic Materials, Henan University
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
Zhiyong Fan: Department of Electronic & Computer Engineering, The Hong Kong University of Science and Technology, Clear Water Bay

DOI: https://doi.org/10.1038/s41467-023-40150-y
Journal volume & issue: Vol. 14, no. 1
pp. 1 – 9

Abstract

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Abstract Metal halide perovskites have shown great promise as a potential candidate for next-generation solid state lighting and display technologies. However, a generic organic ligand-free and antisolvent-free solution method to fabricate highly efficient full-color perovskite light-emitting diodes has not been realized. Herein, by utilizing porous alumina membranes with ultra-small pore size as templates, we have successfully fabricated crystalline all-inorganic perovskite quantum wire arrays with ultrahigh density and excellent uniformity, using a generic organic ligand-free and anti-solvent-free solution method. The quantum confinement effect, in conjunction with the high light out-coupling efficiency, results in high photoluminescence quantum yield for blue, sky-blue, green and pure-red perovskite quantum wires arrays. Consequently, blue, sky-blue, green and pure-red LED devices with spectrally stable electroluminescence have been successfully fabricated, demonstrating external quantum efficiencies of 12.41%, 16.49%, 26.09% and 9.97%, respectively, after introducing a dual-functional small molecule, which serves as surface passivation and hole transporting layer, and a halide vacancy healing agent.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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