標題: Mechanisms of the Asymmetric Light Output Enhancements in a-Plane GaN Light-Emitting Diodes With Photonic Crystals
作者: Li, Hsiang-Wei
Yin, Yu-Feng
Chang, Chen-Yu
Tsai, Chen-Hung
Hsu, Yen-Hsiang
Lin, Da-Wei
Wu, Yuh-Renn
Kuo, Hao-Chung
Huang, Jian Jang
光電工程學系
Department of Photonics
關鍵字: Light-emitting diodes;non-polar GaN;photonic crystal;purcell effect
公開日期: 1-十二月-2014
摘要: The unique properties of nonpolar GaN light-emitting diodes (LEDs) have the advantages of generating polarized light emission. The employment of asymmetric 2-D photonic crystals (PhCs) can further enhance the light polarization ratio. In addition, it was generally recognized that the Purcell effect can increase the internal quantum efficiency of the LEDs with PhCs. In this paper, we study the properties of optical modes from different crystal planes. The Purcell effect is analyzed based on the PhCs and material crystal orientations. With different transition probability of the polarized photons in valence bands, the corresponding Purcell effect enhancement on the quantum efficiency varies.
URI: http://dx.doi.org/10.1109/JQE.2014.2362552
http://hdl.handle.net/11536/123885
ISSN: 0018-9197
DOI: 10.1109/JQE.2014.2362552
期刊: IEEE JOURNAL OF QUANTUM ELECTRONICS
Volume: 50
Issue: 12
起始頁: 951
結束頁: 956
顯示於類別:期刊論文


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  1. 000344478600002.pdf