Thermal and optical performance characterization of bare and phosphor converted LEDs through package level immersion cooling

Name: Thermal and optical performance characterization of bare and phosphor converted LEDs through package level immersion cooling
Author: Azarifar, Mohammad, Cengiz, Ceren, Arık, Mehmet

İsim	Thermal and optical performance characterization of bare and phosphor converted LEDs through package level immersion cooling
Yazar	Azarifar, Mohammad, Cengiz, Ceren, Arık, Mehmet
Basım Tarihi:	2022-06-15
Basım Yeri	- Elsevier
Konu	Electronics packaging, LED, Liquid cooling, Optoelectronics thermal management, SSL
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	0017-9310
Kayıt Numarası	beedfe9b-eedf-4c4c-b22f-501fa8c91e58
Lokasyon	Mechanical Engineering
Tarih	2022-06-15
Notlar	EVATEG Center ; Ozyegin University ; TÜBİTAK
Örnek Metin	Increased demand for high flux electronics requires creative and affordable thermal management approaches to meet the performance and lifetime expectations. In the present study, optical and thermal improvements of a new package level liquid coolant encapsulation that directly targets heat generation zones are studied for bare and phosphor converted LEDs. As heat both at chip and phosphor composite regions are being generated, a series of detailed experimental and theoretical characterization is performed in order to examine the capability of the new cooling method. The findings can be used to extend the application of precisely controlled liquid packing on the heat source region of optoelectronic components. This method has shown a 15% reduction in thermal resistance and a 7% increase in power conversion efficiency of LED packages. The capacity of this method is mainly limited to the thermal conductivity of the coolant while a significant ability for improvement can be expected by utilizing thermally conductive particles such as hexagonal boron nitride inside the coolant.
DOI	10.1016/j.ijheatmasstransfer.2022.122607
Cilt	189

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Thermal and optical performance characterization of bare and phosphor converted LEDs through package level immersion cooling

Yazar Azarifar, Mohammad, Cengiz, Ceren, Arık, Mehmet

Basım Tarihi 2022-06-15

Basım Yeri - Elsevier

Konu Electronics packaging, LED, Liquid cooling, Optoelectronics thermal management, SSL

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 0017-9310

Kayıt Numarası beedfe9b-eedf-4c4c-b22f-501fa8c91e58

Lokasyon Mechanical Engineering

Tarih 2022-06-15

Notlar EVATEG Center ; Ozyegin University ; TÜBİTAK

Örnek Metin Increased demand for high flux electronics requires creative and affordable thermal management approaches to meet the performance and lifetime expectations. In the present study, optical and thermal improvements of a new package level liquid coolant encapsulation that directly targets heat generation zones are studied for bare and phosphor converted LEDs. As heat both at chip and phosphor composite regions are being generated, a series of detailed experimental and theoretical characterization is performed in order to examine the capability of the new cooling method. The findings can be used to extend the application of precisely controlled liquid packing on the heat source region of optoelectronic components. This method has shown a 15% reduction in thermal resistance and a 7% increase in power conversion efficiency of LED packages. The capacity of this method is mainly limited to the thermal conductivity of the coolant while a significant ability for improvement can be expected by utilizing thermally conductive particles such as hexagonal boron nitride inside the coolant.

DOI 10.1016/j.ijheatmasstransfer.2022.122607

Cilt 189