TY - JOUR
T1 - Nitride-based LEDs with high-reflectance and wide-angle ag mirror+SiO 2/TiO2 DBR backside reflector
AU - Lin, Nan Ming
AU - Shei, Shih Chang
AU - Chang, Shoou Jinn
N1 - Funding Information:
Manuscript received December 10, 2010; revised January 07, 2011; accepted January 27, 2011. Date of publication February 04, 2011; date of current version March 21, 2011. This work was supported in part by the Bureau of Energy, Ministry of Economic Affairs of R.O.C. under Contract 98-D0204-6 and in part by the LED Lighting and Research Center, National Cheng Kung University, Tainan Taiwan.
Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2011
Y1 - 2011
N2 - Nitride-based light-emitting diodes (LEDs) with a backside reflector combining a SiO2/TiO2 distributed Bragg reflector (DBR) and an Ag mirror were simulated and fabricated. With combining the three-pair SiO2/TiO2 DBR and an Ag mirror, it was found that we can significantly enhance the 96% reflectance of Ag mirror to 99.1% with an incident angle of 0°. Furthermore, reflectance of the proposed reflector depends slightly on incident light wavelength and the incident angle. With 350-mA current injection, it was found that the output powers were 122, 138, 153, 156, and 162 mW for the LEDs without reflector, with an Al mirror, with Al+3DBR mirror, with an Ag mirror, and with Ag+3DBR mirror, respectively.
AB - Nitride-based light-emitting diodes (LEDs) with a backside reflector combining a SiO2/TiO2 distributed Bragg reflector (DBR) and an Ag mirror were simulated and fabricated. With combining the three-pair SiO2/TiO2 DBR and an Ag mirror, it was found that we can significantly enhance the 96% reflectance of Ag mirror to 99.1% with an incident angle of 0°. Furthermore, reflectance of the proposed reflector depends slightly on incident light wavelength and the incident angle. With 350-mA current injection, it was found that the output powers were 122, 138, 153, 156, and 162 mW for the LEDs without reflector, with an Al mirror, with Al+3DBR mirror, with an Ag mirror, and with Ag+3DBR mirror, respectively.
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U2 - 10.1109/JLT.2011.2111416
DO - 10.1109/JLT.2011.2111416
M3 - Article
AN - SCOPUS:79953032284
SN - 0733-8724
VL - 29
SP - 1033
EP - 1038
JO - Journal of Lightwave Technology
JF - Journal of Lightwave Technology
IS - 7
M1 - 5708156
ER -