Effect of phase change materials on the optical path of LEDs for opto-thermal enhancement

Name: Effect of phase change materials on the optical path of LEDs for opto-thermal enhancement
Author: Azarifar, M., Arık, Mehmet, Xie, B., Luo, X.

İsim	Effect of phase change materials on the optical path of LEDs for opto-thermal enhancement
Yazar	Azarifar, M., Arık, Mehmet, Xie, B., Luo, X.
Basım Tarihi:	2023-05
Basım Yeri	- IEEE
Konu	Heat dissipation, Light-emitting diodes (LEDs), Phase change material (PCM), Thermal quenching
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	0018-9383
Kayıt Numarası	28528078-1c85-47ac-b5fd-70108b7610bc
Lokasyon	Mechanical Engineering
Tarih	2023-05
Örnek Metin	A novel concept based on the encapsulation of transparent phase change materials (PCMs) into the optical packaging structure of light-emitting diodes (LEDs) is presented in this article. The concept was initiated by challenges of thermal management of photoluminescent particles in high-power optical systems. LEDs, white LEDs (WLEDs), and porous/network-based photoluminescent matrices can achieve improved thermal networks by embedding PCMs. In this article, paraffin is selected as a suitable PCM encapsulant, and aside from thermal perspectives, an unexpected optical benefit with melted paraffin after surface wetting of the chip was observed. Immersing an LED chip in a melted paraffin pool showed up to an 8% increase in light extraction efficiency and a 1.5% increase in power conversion efficiency (PCE). An accurate dynamic opto-electro-thermal monitoring of studied devices was used to support the proof of concept. This viable method can be integrated into current industrial packaging processes.
DOI	10.1109/TED.2023.3248524
Cilt	70

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Effect of phase change materials on the optical path of LEDs for opto-thermal enhancement

Yazar Azarifar, M., Arık, Mehmet, Xie, B., Luo, X.

Basım Tarihi 2023-05

Basım Yeri - IEEE

Konu Heat dissipation, Light-emitting diodes (LEDs), Phase change material (PCM), Thermal quenching

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 0018-9383

Kayıt Numarası 28528078-1c85-47ac-b5fd-70108b7610bc

Lokasyon Mechanical Engineering

Tarih 2023-05

Örnek Metin A novel concept based on the encapsulation of transparent phase change materials (PCMs) into the optical packaging structure of light-emitting diodes (LEDs) is presented in this article. The concept was initiated by challenges of thermal management of photoluminescent particles in high-power optical systems. LEDs, white LEDs (WLEDs), and porous/network-based photoluminescent matrices can achieve improved thermal networks by embedding PCMs. In this article, paraffin is selected as a suitable PCM encapsulant, and aside from thermal perspectives, an unexpected optical benefit with melted paraffin after surface wetting of the chip was observed. Immersing an LED chip in a melted paraffin pool showed up to an 8% increase in light extraction efficiency and a 1.5% increase in power conversion efficiency (PCE). An accurate dynamic opto-electro-thermal monitoring of studied devices was used to support the proof of concept. This viable method can be integrated into current industrial packaging processes.

DOI 10.1109/TED.2023.3248524

Cilt 70