Temperature Independence of the Droop Effect in Blue LED’s Grown on Silicon Substrates

摘要：

　　Efficiency droop remains a significant problem to be overcome if the performance of LEDs for solid state lighting is to be improved.As more cost effective substrates such as silicon wafers are used on which to grow the LED active layers,the overall output efficiency and efficiency droop at high drive currents need to be monitored and better understood.This paper investigates the droop effect at elevated temperatures for an LED grown on silicon,compared with an LED grown on the more standard sapphire substrate.While the overall output efficiency decreases with increasing temperature,the efficiency droop is found to be relatively independent of temperature.

作者: P. Tanner J. Han S. Dimitrijev

作者单位: Griffith University Queensland Micro- and Nanotechnology Centre Nathan,Queensland,Australia,4111

会议类型: 国内会议

会议名称: 第十二届中国国际半导体照明论坛

会议地点: 深圳

会议语种:英文

页码: 1-4

在线出版日期: 2015-11-02（万方平台首次上网日期，不代表论文的发表时间）