电子元件与材料2016，Vol.35Issue(7)：19-22,4.DOI:10.14106/j.cnki.1001-2028.2016.07.005
基于YAG陶瓷封装的大功率车用LED的发光性能
Performance of high power LEDs based on Ce:YAG ceramics for automotive application
摘要
Abstract
5 W blue light LED chips based on InGaN were packaged using the Ce:YAG ceramics with different Ce doping levels. The luminescent properties of packaged LED beads were evaluated. Electroluminescence (EL) spectra of the ceramic-packaged LEDs show that Ce:YAG ceramic is a more compact and efficient fluorescent material. More activation centers of Ce3+can be contained in ceramic with a low doping concentration at a small volume. With a concentration of x=0.03 (Cex:Y3-xAl5O12) and a thickness of 0.4 mm, YAG ceramic-packaged LED shows a high luminous efficiency of 88.2 lm/W. The optical performance of this kind of LEDs based on YAG ceramic makes them promising in automotive headlamps.关键词
Ce:YAG/陶瓷/荧光粉/LED/发光性能/车大灯Key words
Ce:YAG/ceramics/phosphors/LEDs/optical properties/headlights分类
通用工业技术引用本文复制引用
张晔明,芶立,时佳男,高江东..基于YAG陶瓷封装的大功率车用LED的发光性能[J].电子元件与材料,2016,35(7):19-22,4.基金项目
成都市高校院所应用成果转化资助项目 （）
