Issue 108, 2014
From the journal:

RSC Advances

Periodic indentation patterns fabricated on AlGaInP light emitting diodes and their effects on light extraction

Xiaoyu Lin,a   Duo Liu,*a   Guanjun Lin,a   Qian Zhang,a   Naikun Gao,a   Dongfang Zhao,a   Ran Jia,a   Zhiyuan Zuoa  and  Xiangang Xua  

* Corresponding authors

a State Key Laboratory of Crystal Materials, Shandong University, 27 South Shanda Road, Jinan, Shandong 250100, P. R. China
E-mail: liuduo@sdu.edu.cn

Abstract

We report a novel method for fabricating periodic indentation patterns on AlGaInP light emitting diodes (LEDs) that can effectively improve the light extraction efficiency. The patterns consist of hemispherical pits created by directly imprinting the top GaP window layer of AlGaInP LEDs with patterned sapphire (PS). The angle resolved electroluminescence tests reveal that the patterned chips show an average light emission enhancement of 155% over the original planar chips.

Graphical abstract: Periodic indentation patterns fabricated on AlGaInP light emitting diodes and their effects on light extraction

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Article information

DOI
https://doi.org/10.1039/C4RA11390J
Article type
Paper
Submitted
28 Sep 2014
Accepted
14 Nov 2014
First published
14 Nov 2014

RSC Adv., 2014,4, 63143-63146

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Periodic indentation patterns fabricated on AlGaInP light emitting diodes and their effects on light extraction

X. Lin, D. Liu, G. Lin, Q. Zhang, N. Gao, D. Zhao, R. Jia, Z. Zuo and X. Xu, RSC Adv., 2014, 4, 63143 DOI: 10.1039/C4RA11390J

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