照明工程学报2016，Vol.27Issue(2)：72-76,5.DOI:10.3969/j.issn.1004-440X.2016.02.016
宽频高光提取效率 LED 芯片的研究
The Study on A Broadband and High Extract Efficiency LED Chip
方海闻 1蒋寻涯1
作者信息
- 1. 复旦大学电光源研究所，先进照明技术教育部工程研究中心，上海 200433
- 折叠
摘要
Abstract
This paper proposes the use of a single photonic crystal ( PC ) moth-eye structure to improve LED light extract efficiency in a wide frequency range, the main idea is to optimize the structural parameters so that both mechanisms of PC multiple wave-vector coupling and moth-eye gradually-varied refractive index in wide frequency range could work together very well.Based on numerical experiments with finite-difference time-domain method, we optimize the structural parameters of PC moth-eye structure, and finally get a simple structure with higher extract efficiency for RGB full color LED.Its average extract efficiency could be six times higher than the traditional without-surface-structure LED in a very wide frequency range. With these values, the structure has great potential for industrial applications.关键词
光提取效率/RGB全彩LED/光子晶体/蛾眼结构Key words
light extract efficiency/RGB full color LED/photonic crystal/moth-eye structure分类
信息技术与安全科学引用本文复制引用
方海闻,蒋寻涯..宽频高光提取效率 LED 芯片的研究[J].照明工程学报,2016,27(2):72-76,5.
