透射率
量子效率
光学
功勋
发光二极管
自发辐射
物理
塞尔效应
量子
联轴节(管道)
二极管
光电子学
材料科学
激光器
量子力学
冶金
作者
Siyuan Huang,Yongpin Chen,Yang Yang,Wei E. I. Sha
出处
期刊:Optics Express
[Optica Publishing Group]
日期:2022-06-16
卷期号:30 (14): 24544-24544
被引量:1
摘要
The calculation method for light emission efficiency splits external quantum efficiency (EQE) into internal quantum efficiency (IQE) and light extraction efficiency (LEE) independently. Consequently, the IQE connected to Purcell factor and the LEE are calculated separately. This traditional method ignores the interplays between the Purcell factor and transmittance coefficient in spectral domain, which all strongly depend on emitting directions. In this work, we propose a new figure of merit to describe the light emission process accurately by using the direction-dependent Purcell factor and transmittance coefficient simultaneously. We use a specific LED structure as a numerical example to illustrate the calculation method and optimization procedure.
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