Affiliation:
1. Central South University
Abstract
A detailed theoretical derivation and calculation method of the difference coefficient between a light distribution pattern of a
30
×
20
µ
m
2
green micro-LED array and Lambert source is proposed first in this paper, to the best of our knowledge, which establishes an accurate relationship between external quantum efficiency and current efficiency (cd/A). The variation of capacitance with voltage and wavelength blueshift is illustrated by a carrier recombination mechanism. The current efficiency reaches 132.5 cd/A for the
60
×
50
µ
m
2
and 121.7 cd/A for the
25
×
15
µ
m
2
arrays, and the mechanism caused by size dependence is analyzed in detail combined with the classical ABC model.
Funder
National Natural Science Foundation of China
National Natural Science Foundation of China’s joint fund for regional innovation and development
Subject
Atomic and Molecular Physics, and Optics,Engineering (miscellaneous),Electrical and Electronic Engineering