Evaluation of current and temperature effects on optical performance of InGaAlP thin-film SMD LED mounted on different substrate packages

被引：0
|
作者：
Muna E.Raypah [1 ]
Mutharasu Devarajan [1 ]
Fauziah Sulaiman [1 ]
机构：
[1] School of Physics, Universiti Sains Malaysia (USM)
来源：
Chinese Physics B | 2017年 / 07期
关键词：
light-emitting diodes(LEDs); surface-mounted device(SMD); InGaAlP; luminous efficiency;
D O I：
暂无
中图分类号：
O484.41 [];
学科分类号：
0803 ;
摘要：
The relationship between the photometric, electric, and thermal parameters of light-emitting diodes(LEDs) is important for optimizing the LED illumination design. Indium gallium aluminium phosphide(InGaAlP)-based thin-film surface-mounted device(SMD) LEDs have attracted wide attention in research and development due to their portability and miniaturization. We report the optical characterization of InGaAlP thin-film SMD LED mounted on FR4, 2 W, and 5 W aluminum(Al) packages. The optical and thermal parameters of LED are determined at different injection currents and ambient temperatures by combining the T3ster(thermal transient tester) and TeraL ED(thermal and radiometric characterization of power LEDs) systems. Analysis shows that LED on a 5 W Al substrate package obtains the highest luminous and optical efficiency.
引用
收藏
页码：458 / 464
页数：7
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