A critical review on the junction temperature measurement of light emitting diodes

Name: A critical review on the junction temperature measurement of light emitting diodes
Author: Cengiz, C., Azarifar, M., Arık, Mehmet

İsim	A critical review on the junction temperature measurement of light emitting diodes
Yazar	Cengiz, C., Azarifar, M., Arık, Mehmet
Basım Tarihi:	2022-10
Basım Yeri	- MDPI
Konu	Heat generation, Junction temperature, Light emitting diode (LED), Measurement systems, Review, Thermometry
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	2072-666X
Kayıt Numarası	9d4f116e-514c-4307-95b1-dd2853294a22
Lokasyon	Mechanical Engineering
Tarih	2022-10
Notlar	TÜBİTAK
Örnek Metin	In the new age of illumination, light emitting diodes (LEDs) have been proven to be the most efficient alternative to conventional light sources. Yet, in comparison to other lighting systems, LEDs operate at low temperatures while junction temperature (Tj) is is among the main factors dictating their lifespan, reliability, and performance. This indicates that accurate measurement of LED temperature is of great importance to better understand the thermal effects over a system and improve performance. Over the years, various Tj measurement techniques have been developed, and existing methods have been improved in many ways with technological and scientific advancements. Correspondingly, in order to address the governing phenomena, benefits, drawbacks, possibilities, and applications, a wide range of measurement techniques and systems are covered. This paper comprises a large number of published studies on junction temperature measurement approaches for LEDs, and a summary of the experimental parameters employed in the literature are given as a reference. In addition, some of the corrections noted in non-ideal thermal calibration processes are discussed and presented. Finally, a comparison between methods will provide the readers a better insight into the topic and direction for future research.
DOI	10.3390/mi13101615
Cilt	13

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A critical review on the junction temperature measurement of light emitting diodes

Yazar Cengiz, C., Azarifar, M., Arık, Mehmet

Basım Tarihi 2022-10

Basım Yeri - MDPI

Konu Heat generation, Junction temperature, Light emitting diode (LED), Measurement systems, Review, Thermometry

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 2072-666X

Kayıt Numarası 9d4f116e-514c-4307-95b1-dd2853294a22

Lokasyon Mechanical Engineering

Tarih 2022-10

Notlar TÜBİTAK

Örnek Metin In the new age of illumination, light emitting diodes (LEDs) have been proven to be the most efficient alternative to conventional light sources. Yet, in comparison to other lighting systems, LEDs operate at low temperatures while junction temperature (Tj) is is among the main factors dictating their lifespan, reliability, and performance. This indicates that accurate measurement of LED temperature is of great importance to better understand the thermal effects over a system and improve performance. Over the years, various Tj measurement techniques have been developed, and existing methods have been improved in many ways with technological and scientific advancements. Correspondingly, in order to address the governing phenomena, benefits, drawbacks, possibilities, and applications, a wide range of measurement techniques and systems are covered. This paper comprises a large number of published studies on junction temperature measurement approaches for LEDs, and a summary of the experimental parameters employed in the literature are given as a reference. In addition, some of the corrections noted in non-ideal thermal calibration processes are discussed and presented. Finally, a comparison between methods will provide the readers a better insight into the topic and direction for future research.

DOI 10.3390/mi13101615

Cilt 13