標題: Improved optical transmission and current matching of a triple-junction solar cell utilizing sub-wavelength structures
作者: Chiu, M. -Y.
Chang, C. -H.
Tsai, M. -A.
Chang, F. -Y.
Yu, Peichen
電子物理學系
光電工程學系
顯示科技研究所
Department of Electrophysics
Department of Photonics
Institute of Display
公開日期: 13-九月-2010
摘要: Sub-wavelength antireflective structures are fabricated on a silicon nitride passivation layer of a Ga(0.5)In(0.5)P/GaAs/Ge triple-junction solar cell using polystyrene nanosphere lithography followed by anisotropic etching. The fabricated structures enhance optical transmission in the ultraviolet wavelength range, compared to a conventional single-layer antireflective coating (ARC). The transmission improvement contributes to an enhanced photocurrent, which is also verified by the external quantum efficiency characterization of the fabricated solar cells. Under one-sun illumination, the short-circuit current of a cell with sub-wavelength structures is enhanced by 46.1% and 3.4% due to much improved optical transmission and current matching, compared to cells without an ARC and with a conventional SiN(x) ARC, respectively. Further optimizations of the sub-wavelength structures including the periodicity and etching depth are conducted by performing comprehensive calculations based on a rigorous couple-wave analysis method. (C) 2010 Optical Society of America
URI: http://hdl.handle.net/11536/32196
ISSN: 1094-4087
期刊: OPTICS EXPRESS
Volume: 18
Issue: 19
起始頁: A308
結束頁: A313
顯示於類別:期刊論文


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  1. 000281779600081.pdf