標題: Divergent Far-Field III-Nitride Ultrathin Film-Transferred Photonic Crystal Light-Emitting Diodes
作者: Lai, Chun-Feng
Chao, Chia-Hsin
Kuo, Hao-Chung
Yu, Peichen
Yen, His-Hsuan
Yeh, Wen-Yung
光電工程學系
Department of Photonics
公開日期: 2010
摘要: The divergent far-field distribution of III-nitride ultrathin film-transferred light-emitting diodes (FTLEDs) with ellipse holes of triangular photonic crystal (PhC) lattice have been experimental and theoretical studies. Angular-and-spectral-resolved measurement revealed guided modes extraction behaviors which obtain good agreement with theoretical model according to two-dimensional free photon band structure. The azimuthal evolution of the guided modes' diffraction behavior according to Bragg's diffraction has also been discussed by angular-resolved monochromatical mapping. Finally, the PhC FTLEDs show light enhancement with the divergence far-field pattern that exhibited 130% at a driving current of 200mA as compared with non-PhC (without PhC) FTLEDs. This could lead to promising LEDs with unusual divergent far-field properties for specific applications. (C) 2010 The Japan Society of Applied Physics
URI: http://hdl.handle.net/11536/6041
http://dx.doi.org/10.1143/JJAP.49.04DG08
ISSN: 0021-4922
DOI: 10.1143/JJAP.49.04DG08
期刊: JAPANESE JOURNAL OF APPLIED PHYSICS
Volume: 49
Issue: 4
顯示於類別:期刊論文


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  1. 000277301300131.pdf