钝化
材料科学
发光二极管
光电子学
电致发光
电介质
量子效率
二极管
光致发光
绿灯
纳米技术
图层(电子)
蓝光
作者
Meng-Chun Shen,Wenan Guo,Jinlan Chen,Shen Lin,Saijun Li,Shouqiang Lai,Tingwei Lu,Min Huang,Hao‐Chung Kuo,Zhong Chen,Tingzhu Wu
出处
期刊:Physica Scripta
[IOP Publishing]
日期:2023-10-18
卷期号:98 (11): 115524-115524
标识
DOI:10.1088/1402-4896/acfb4d
摘要
Abstract The technique of double dielectric sidewall passivation could improve the electroluminescence characteristics of green mini-LED, including the leakage current, electroluminescence intensity and external quantum efficiency (EQE). According to the analysis of EQE with ABC + f (n) model, both the increment of size and the sidewall passivation could reduce the fraction of SRH recombination. Then, the results of time-resolved photoluminescence measurement indicated that the carrier lifetime of mini-LEDs with higher surface-volume ratio and sidewall passivation would be reduced. Moreover, the communication performances such as modulation bandwidth and frequency response of green mini-LEDs could also be improved by adopting double dielectric sidewall passivation, and the smaller sized green mini-LEDs could achieve higher modulation bandwidth and frequency response.
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