中国物理B ›› 2017, Vol. 26 ›› Issue (7): 78503-078503.doi: 10.1088/1674-1056/26/7/078503

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    下一篇

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

Muna E. Raypah, Mutharasu Devarajan, Fauziah Sulaiman   

  1. School of Physics, Universiti Sains Malaysia(USM), Penang 11800, Malaysia
  • 收稿日期:2017-01-20 修回日期:2017-03-07 出版日期:2017-07-05 发布日期:2017-07-05
  • 通讯作者: Muna E. Raypah E-mail:muna.ezzi@gmail.com,moni.ezzi@yahoo.com

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

Muna E. Raypah, Mutharasu Devarajan, Fauziah Sulaiman   

  1. School of Physics, Universiti Sains Malaysia(USM), Penang 11800, Malaysia
  • Received:2017-01-20 Revised:2017-03-07 Online:2017-07-05 Published:2017-07-05
  • Contact: Muna E. Raypah E-mail:muna.ezzi@gmail.com,moni.ezzi@yahoo.com

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 TeraLED (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.

关键词: light-emitting diodes (LEDs), surface-mounted device (SMD), InGaAlP, luminous efficiency

Abstract: 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 TeraLED (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.

Key words: light-emitting diodes (LEDs), surface-mounted device (SMD), InGaAlP, luminous efficiency

中图分类号:  (Light-emitting devices)

  • 85.60.Jb
61.82.Fk (Semiconductors) 81.05.Ea (III-V semiconductors) 81.70.Pg (Thermal analysis, differential thermal analysis (DTA), differential thermogravimetric analysis)