Using Pre-TMIn treatment to improve the optical properties of green light emitting diodes

Bing Xu, Hai Tao Dai, Shu Guo Wang, Fu Chuan Chu, Chou Hsiung Huang, Sheng Fu Yu, Jun Liang Zhao, Xiao Wei Sun, Ray Ming Lin*

*此作品的通信作者

研究成果: 期刊稿件文章同行評審

2 引文 斯高帕斯(Scopus)

摘要

We investigated the effects of pre-TMIn treatment on the optical properties of green light emitting diodes (LEDs). Although pre-TMIn treatment did not affect the epitaxial structure of quantum wells, it significantly improved the quality of the surface morphology relative to that of the untreated sample. Indium cluster can be seen by high-resolution transmission electron microscopy (HR-TEM), which is the explanation for the red-shift of photoluminescence (PL). Time-resolved photoluminescence measurements indicated that the sample prepared with pre-TMIn treatment had a shorter radiative decay time. As a result, the light output power of the treated green LED was higher than that of the conventional untreated one. Thus, pre-TMIn treatment appears to be a simple and efficient means of improving the performance of green LEDs.

原文英語
文章編號952567
期刊International Journal of Photoenergy
2014
DOIs
出版狀態已出版 - 2014

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