Determining Junction Temperature of LEDs by the Relative Reflected Intensity of the Incident Exciting Light
| العنوان: | Determining Junction Temperature of LEDs by the Relative Reflected Intensity of the Incident Exciting Light |
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| المؤلفون: | Yao Xiao, Lihong Zhu, Yulin Gao, Yijun Lu, Ziquan Guo, Tingzhu Wu, Sijia Dang, Yue Lin, Zhong Chen |
| المصدر: | IEEE Transactions on Electron Devices. 64:2257-2260 |
| بيانات النشر: | Institute of Electrical and Electronics Engineers (IEEE), 2017. |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | 010302 applied physics, Optical fiber, Materials science, business.industry, Light extraction in LEDs, Dynamic range, 020208 electrical & electronic engineering, 02 engineering and technology, 01 natural sciences, Temperature measurement, Electronic, Optical and Magnetic Materials, law.invention, Optics, law, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, Optoelectronics, Junction temperature, Electrical and Electronic Engineering, business, Absorption (electromagnetic radiation), Diode, Light-emitting diode |
| الوصف: | Relative reflected intensity of the incident exciting light is proposed to measure the junction temperature of light-emitting diodes (LEDs) under test. Reflectance spectra at a wide junction temperature range are acquired. Multichannel optical fibers greatly increase the collecting efficiency of the reflected light. Lock-in technique is utilized to exclude the interference of the emitting light from LEDs under test and to increase the dynamic range greatly. The results are in good agreement with those directly tested by a microthermocouple. To avoid extra carrier absorption and modulation effect, the incident exciting light should harbor smaller bandgap than that of LEDs under test. |
| تدمد: | 1557-9646 0018-9383 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_________::2624c7030fb5d30768d7f8290ffa5667Test https://doi.org/10.1109/ted.2017.2678513Test |
| حقوق: | CLOSED |
| رقم الانضمام: | edsair.doi...........2624c7030fb5d30768d7f8290ffa5667 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15579646 00189383 |
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