Determining junction temperature based on material properties and geometric structures of LEDs

  • Ching-Yen HoEmail author
  • Song-Feng Wan
  • Bor-Chyuan Chen
  • Long-Gen Li
  • Si-Li Fan
  • Chang-Wei Xiong
Part of the following topical collections:
  1. Optics in Materials, Energy and Related Technologies 2018


Based on the material properties and geometric structures of LEDs, this paper proposes an analytical model for predicting the junction temperature. The parameters relevant to the junction temperature are calculated using the material properties and geometric structures of LEDs. The junction temperature of AlGaInP LED predicted from this work agrees with the available experimental data. Effects of LED working parameters and material properties on the junction temperatures are discussed in this study.


LED Material properties Geometric structures Junction temperature 



Support for this work by ministry of science and technology under Grant No. MOST 106-2221-E-146-006-, Guangdong educational department of scientific research project with Grant No. 2017GKTSCX105, Dongguan Polytechnic scientific research fund through Grant No. 2017a04, and Dongguan Polytechnic quality engineering Project under No. JGZD201826 is gratefully acknowledged.


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© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Ching-Yen Ho
    • 1
    • 2
    Email author
  • Song-Feng Wan
    • 1
  • Bor-Chyuan Chen
    • 3
  • Long-Gen Li
    • 1
  • Si-Li Fan
    • 1
  • Chang-Wei Xiong
    • 1
  1. 1.Department of Mechanical and Electrical EngineeringDongguan PolytechnicDongguanChina
  2. 2.Department of Mechanical EngineeringHwa Hsia University of TechnologyTaipeiTaiwan, ROC
  3. 3.Department of Chinese MedicineBuddhist Dalin Tzu Chi General HospitalChiayiTaiwan, ROC

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