High uniformity red µ-LED array with a current efficiency of 2.6 cd/A and ns-level response time-Reference-Cited by-同舟云学术

High uniformity red µ-LED array with a current efficiency of 2.6 cd/A and ns-level response time

Published:2023-05-24 Issue:11 Volume:48 Page:2933
ISSN:0146-9592
Container-title:Optics Letters
language:en
Short-container-title:Opt. Lett.

Author:

Yee Chee-Keong^ORCID,Lin Jia-Ming,Wu Ming-June,Cheng Hao-Tien^ORCID,Huang Chun-Wei,Lee Chia-An¹,Lin Kuan-Heng¹,Wu Chung-Chih^ORCID,Wu Chao-Hsiu^ORCID

Affiliation:

1. AU Optronics Corporation

Abstract

This paper demonstrates an AlGaInP-based 620-nm red micro-light-emitting-diode (µ-LED) array and studies the enhancement effect of the surface treatments using (NH4)2S x solutions by comparing the characteristics of µ-LED arrays with and without the (NH4)2S x treatment. Furthermore, our µ-LED array demonstrates a measurement of the current efficiency (2.6 cd/A), which improves the light output uniformity. Also, we apply a setup for measuring the response time at the fast ns-level to analyze the effect of passivation in AlGaInP-based µ-LED arrays.

Funder

AU Optronics

National Science and Technology Council

Chung-Shan Institute of Science and Technology

National Taiwan University

NTUS Innovation Cooperation

Publisher

Optica Publishing Group

Subject

Atomic and Molecular Physics, and Optics

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