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

Autor:	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
Jazyk:	angličtina
Rok vydání:	2023
Předmět:	Perovskite light-emitting diodes Downward recrystallization Buried submicrocavities Light out-coupling efficiency Radiative recombination Technology
Zdroj:	Nano-Micro Letters, Vol 15, Iss 1, Pp 1-13 (2023)
Druh dokumentu:	article
ISSN:	2311-6706 2150-5551
DOI:	10.1007/s40820-023-01097-3
Popis:	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.
Databáze:	Directory of Open Access Journals
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