標題: Toward Omnidirectional Light Absorption by Plasmonic Effect for High-Efficiency Flexible Nonvacuum Cu(In,Ga)Se-2 Thin Film Solar Cells
作者: Chen, Shih-Chen
Chen, Yi-Ju
Chen, Wei Ting
Yen, Yu-Ting
Kao, Tsung Sheng
Chuang, Tsung-Yeh
Liao, Yu-Kuang
Wu, Kaung-Hsiung
Yabushita, Atsushi
Hsieh, Tung-Po
Charlton, Martin D. B.
Tsai, Din Ping
Kuo, Hao-Chung
Chueh, Yu-Lun
交大名義發表
電子物理學系
光電工程學系
National Chiao Tung University
Department of Electrophysics
Department of Photonics
關鍵字: solar Cell;Cu(In,Ga)Se-2;omnidirectional light absorption;plasmonic effect;nanoparticles;flexible
公開日期: 1-Sep-2014
摘要: We have successfully demonstrated a great advantage of plasmonic Au nanoparticles for efficient enhancement of Cu(In,Ga)Se-2(CIGS) flexible photovoltaic devices. The incorporation of Au NPs can eliminate obstacles in the way of developing ink-printing CIGS flexible thin film photovoltaics (TFPV), such as poor absorption at wavelengths in the high intensity region of solar spectrum, and that occurs significantly at large incident angle of solar irradiation. The enhancement of external quantum efficiency and photocurrent have been systematically analyzed via the calculated electromagnetic field distribution. Finally, the major benefits of the localized surface plasmon resonances (LSPR) in visible wavelength have been investigated by ultrabroadband pump-probe spectroscopy, providing a solid evidence on the strong absorption and reduction of surface recombination that increases electron hole generation and improves the carrier transportation in the vicinity of pn-juction.
URI: http://dx.doi.org/10.1021/nn503320m
http://hdl.handle.net/11536/25191
ISSN: 1936-0851
DOI: 10.1021/nn503320m
期刊: ACS NANO
Volume: 8
Issue: 9
起始頁: 9341
結束頁: 9348
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