Chin. Phys. Lett.  2011, Vol. 28 Issue (5): 054216    DOI: 10.1088/0256-307X/28/5/054216
FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
Light Extraction Enhancement of GaN LED with a Two-Dimensional Photonic Crystal Slab
LIU Hong-Wei1**, KAN Qiang2, WANG Chun-Xia2, HU Hai-Yang2, XU Xing-Sheng2, CHEN Hong-Da2
1School of Electronics and Information Engineering, Tianjin Polytechnic University, Tianjin 300160
2Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083
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LIU Hong-Wei, KAN Qiang, WANG Chun-Xia et al  2011 Chin. Phys. Lett. 28 054216
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Abstract Light extraction effects of a photonic crystal slab with a micrometer scale lattice constant are studied. A GaN light emitting diode (LED) with a photonic crystal slab is fabricated. The light extraction effects and the enhancement mechanism are investigated. From theoretical analysis, it is found that the characteristics of LED light emission are modulated by the photonic crystal slab. Experimental results show that the LED light emission intensity is enhanced by 38% due to guide mode extracting by the photonic crystal.
Keywords: 42.25.Fx      42.70.Qs     
Received: 21 September 2010      Published: 26 April 2011
PACS:  42.25.Fx (Diffraction and scattering)  
  42.70.Qs (Photonic bandgap materials)  
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https://cpl.iphy.ac.cn/10.1088/0256-307X/28/5/054216       OR      https://cpl.iphy.ac.cn/Y2011/V28/I5/054216
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LIU Hong-Wei
KAN Qiang
WANG Chun-Xia
HU Hai-Yang
XU Xing-Sheng
CHEN Hong-Da
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