Enhanced conversion efficiency of Cu(In, Ga)Se2 solar cells with periodic nanosphere arrays

Author

Ming-Yang Hsieh ; Shou-Yi Kuo ; Fang-I Lai ; Hau-Vei Han ; Tsung-Yeh Chuang ; Hao-Chung Kuo

Author_Institution

Dept. of Electron. Eng., Chang Gung Univ., Taoyuan, Taiwan

fYear

2013

fDate

2-4 Jan. 2013

Firstpage

411

Lastpage

413

Abstract

Enhanced photoelectric conversion is demonstrated in a Cu(In, Ga)Se₂ solar cell with the polystyrene (PS) nanospheres, which is one of the simplest and the fastest methods to build a two-dimensional closely packed periodic structure. Owing to the scattering of the PS nanospheres, the light path length can be increased when compared to a bare CIGS solar cell without PS nanospheres on surface. The dimensions of the PS nanospheres are analyzed by using rigorous coupled-wave analysis (RCWA) method, and the optimized efficiency increased from 15.03 to 15.78%.

Keywords

copper compounds; gallium compounds; indium compounds; nanostructured materials; polymers; solar cells; ternary semiconductors; CIGS solar cell; Cu(InGa)Se₂; PS nanosphere; RCWA method; periodic nanosphere arrays; photoelectric conversion efficiency enhancement; polystyrene nanosphere; rigorous coupled-wave analysis; two-dimensional closely packed periodic structure; Glass; Periodic structures; Photovoltaic cells; Reflectivity; Scattering; Self-assembly; Zinc oxide;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanoelectronics Conference (INEC), 2013 IEEE 5th International

Conference_Location

Singapore

ISSN

2159-3523

Print_ISBN

978-1-4673-4840-9

Electronic_ISBN

2159-3523

Type

conf

DOI

10.1109/INEC.2013.6466063

Filename

6466063