標題: Modeling and Optimization of Sub-Wavelength Grating Nanostructures on Cu(In,Ga)Se-2 Solar Cell
作者: Kuo, Shou-Yi
Hsieh, Ming-Yang
Lai, Fang-I
Liao, Yu-Kuang
Kao, Ming-Hsuan
Kuo, Hao-Chung
電子物理學系
光電工程學系
Department of Electrophysics
Department of Photonics
公開日期: 1-Oct-2012
摘要: In this study, an optical simulation of Cu(In,Ga)Se-2 (CIGS) solar cells by the rigorous coupled-wave analysis (RCWA) method is carried out to investigate the effects of surface morphology on the light absorption and power conversion efficiencies. Various sub-wavelength grating (SWG) nanostructures of periodic ZnO:Al (AZO) on CIGS solar cells were discussed in detail. SWG nanostructures were used as efficient antireflection layers. From the simulation results, AZO structures with nipple arrays effectively suppress the Fresnel reflection compared with nanorod- and cone-shaped AZO structures. The optimized reflectance decreased from 8.44 to 3.02% and the efficiency increased from 14.92 to 16.11% accordingly. The remarkable enhancement in light harvesting is attributed to the gradient refractive index profile between the AZO nanostructures and air. (C) 2012 The Japan Society of Applied Physics
URI: http://dx.doi.org/10.1143/JJAP.51.10NC14
http://hdl.handle.net/11536/20445
ISSN: 0021-4922
DOI: 10.1143/JJAP.51.10NC14
期刊: JAPANESE JOURNAL OF APPLIED PHYSICS
Volume: 51
Issue: 10
結束頁: 
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