NDLI: Divergent Far-Field III–Nitride Ultrathin Film-Transferred Photonic Crystal Light-Emitting Diodes

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Divergent Far-Field III–Nitride Ultrathin Film-Transferred Photonic Crystal Light-Emitting Diodes

Content Provider	Scilit
Author	Lai, Chun-Feng Chao, Chia-Hsin Kuo, Hao-Chung Yu, Peichen Yen, His-Hsuan Yeh, Wen-Yung
Copyright Year	2010
Description	Journal: Japanese Journal of Applied Physics 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 200 mA as compared with non-PhC (without PhC) FTLEDs. This could lead to promising LEDs with unusual divergent far-field properties for specific applications.
Related Links	http://pdfs.semanticscholar.org/a37f/8e81e413b0b6e19ef93dcde3da188e00f2dd.pdf http://iopscience.iop.org/article/10.1143/JJAP.49.04DG08/pdf
ISSN	00214922
e-ISSN	13474065
DOI	10.1143/jjap.49.04dg08
Journal	Japanese Journal of Applied Physics
Issue Number	4
Volume Number	49
Language	English
Publisher	IOP Publishing
Publisher Date	2010-04-20
Access Restriction	Open
Subject Keyword	Journal: Japanese Journal of Applied Physics Public, Environmental and Occupational Health Band Structure Photonic Crystal Light Emitting Diode
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy Engineering

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