Self-Generated Buried Submicrocavities for High-Performance Near-Infrared Perovskite Light-Emitting Diode

Jiong Li; Chenghao Duan; Qianpeng Zhang; Chang Chen; Qiaoyun Wen; Minchao Qin; Christopher C. S. Chan; Shibing Zou; Jianwu Wei; Zuo Xiao; Chuantian Zuo; Xinhui Lu; Kam Sing Wong; Zhiyong Fan; Keyou Yan

doi:10.1007/s40820-023-01097-3

Nano-Micro Letters (May 2023)

Self-Generated Buried Submicrocavities for High-Performance Near-Infrared Perovskite Light-Emitting Diode

Jiong Li,
Chenghao Duan,
Qianpeng Zhang,
Chang Chen,
Qiaoyun Wen,
Minchao Qin,
Christopher C. S. Chan,
Shibing Zou,
Jianwu Wei,
Zuo Xiao,
Chuantian Zuo,
Xinhui Lu,
Kam Sing Wong,
Zhiyong Fan,
Keyou Yan

Affiliations

Jiong Li: School of Environment and Energy, State Key Lab of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology
Chenghao Duan: School of Environment and Energy, State Key Lab of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology
Qianpeng Zhang: Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology
Chang Chen: School of Environment and Energy, State Key Lab of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology
Qiaoyun Wen: School of Environment and Energy, State Key Lab of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology
Minchao Qin: Department of Physics, The Chinese University of Hong Kong
Christopher C. S. Chan: Department of Physics, The Hong Kong University of Science and Technology
Shibing Zou: School of Environment and Energy, State Key Lab of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology
Jianwu Wei: School of Chemistry and Chemical Engineering, Guangxi University
Zuo Xiao: Center for Excellence in Nanoscience (CAS), Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS), National Center for Nanoscience and Technology
Chuantian Zuo: Center for Excellence in Nanoscience (CAS), Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS), National Center for Nanoscience and Technology
Xinhui Lu: Department of Physics, The Chinese University of Hong Kong
Kam Sing Wong: Department of Physics, The Hong Kong University of Science and Technology
Zhiyong Fan: Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology
Keyou Yan: School of Environment and Energy, State Key Lab of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology

DOI: https://doi.org/10.1007/s40820-023-01097-3
Journal volume & issue: Vol. 15, no. 1
pp. 1 – 13

Abstract

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Highlights Synergistic effect triggers the Ostwald ripening for the downward recrystallization of perovskite to form buried submicrocavities as light output coupler. The simulation suggests the buried submicrocavities can improve the light out-coupling efficiency from 26.8% to 36.2% for near-infrared light. Light-emitting diodes yields peak external quantum efficiency increasing from 17.3% at current density of 114 mA cm−2 to 25.5% at current density of 109 mA cm−2 and a radiance increasing from 109 to 487 W sr−1 m−2 with low rolling-off.

Published in Nano-Micro Letters

ISSN: 2311-6706 (Print); 2150-5551 (Online)
Publisher: SpringerOpen
Country of publisher: Germany
LCC subjects: Technology
Website: http://www.springer.com/40820

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