Affiliation:
1. National Yang Ming Chiao Tung University
2. Hon Hai Research Institute
3. King Abdullah University of Science and Technology (KAUST)
4. National Taiwan University
Abstract
In this study, we present a high-efficiency InGaN red micro-LED fabricated by the incorporation of superlattice structure, atomic layer deposition passivation, and a distributed Bragg reflector, exhibiting maximum external quantum efficiency of 5.02% with a low efficiency droop corresponding to an injection current density of
112
A
/
cm
2
. The fast carrier dynamics in the InGaN is characterized by using time-resolved photoluminescence, which is correlated to a high modulation bandwidth of 271 MHz achieved by a
6
×
25-μm-sized micro-LED array with a data transmission rate of 350 Mbit/s at a high injection current density of
2000
A
/
cm
2
. It holds great promise for full-color micro-displays as well as high-speed visible light communication applications based on monolithic InGaN micro-LED technologies.
Funder
Ministry of Science and Technology, Taiwan
Subject
Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials
Cited by
49 articles.
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