A novel liquid packaging structure of deep-ultraviolet light-emitting diodes to enhance the light-extraction efficiency

Chieh Yu Kang, Chih Hao Lin, Tingzhu Wu*, Po-Tsung Lee, Zhong Chen, Hao-Chung Kuo

*此作品的通信作者

研究成果: Article同行評審

19 引文 斯高帕斯(Scopus)

摘要

To realize high-efficiency, AlGaN-based, deep-ultraviolet light-emitting diodes (DUV-LEDs), enhancing their light-extraction efficiency and reducing thermal resistance is very crucial. We proposed a liquid packaging structure that could enhance optical power by 27.2% and 70.7% for flat type and lens type 281-nm DUV-LEDs, respectively. A significant improvement effect at different wavelengths, such as 268 nm and 310 nm, was also observed. Furthermore, using the liquid packaging structure, the thermal resistance was reduced by 30.3% compared to the conventional structure. Finally, the reliability of liquid packaging DUV-LEDs was tested. The light output maintenance of liquid packaging DUV-LEDs was compared to the conventional structure.

原文English
文章編號203
頁(從 - 到)1-9
頁數9
期刊Crystals
9
發行號4
DOIs
出版狀態Published - 4月 2019

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