利用网状光子晶体提高GaN基发光二极管的光提取效率

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-01-01 DOI:10.1117/1.JNP.17.016005

Meng Liu, Xu Zheng, Z. Gong, Renqi Gao, Juanying Li, Wenfei Liu

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引用次数: 0

摘要

摘要我们已经在传统发光二极管（LED）的顶表面上提出了网状光子晶体（PhCs），以提高光提取效率（LEE）。基于三维时域有限差分方法进行了严格的电磁模拟，以研究网状光子晶体LED的光学特性以及网状光子晶体提高LED LEE的机理。这些模拟的结果表明，对于具有200nm的网状PhCs周期和200nm的深度的LED，已经实现了超过115%的LEE增强。这项研究为创造下一代高效LED提供了一种创新的方法。

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Enhancing light extraction efficiency of GaN-based light-emitting diodes with reticulated photonic crystals

Abstract. We have proposed reticulated photonic crystals (PhCs) on the top surface of conventional light-emitting diodes (LEDs) to increase the light extraction efficiency (LEE). The rigorous electromagnetic simulations based on the three-dimensional finite-difference time-domain method were carried out to investigate the optical properties of reticulated PhCs LEDs and mechanisms of reticulated PhCs improving the LEE of LEDs. Results from these simulations showed that more than 115% enhancement of LEE had been achieved for LEDs with reticulated PhCs period of 200 nm and depth of 200 nm. This study provides an innovative approach to the creation of high-efficiency LEDs of the upcoming generation.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.