外文题目: Enhanced light trapping with double-groove grating in thin-film amorphous silicon solar cells
作者: Wu, Jun
刊名: Opt. Laser Technol.
年: 2016 卷: 79 页： 95--99
英文关键词:
Diffractive optics; Gratings; Solar cells
ABSORPTION; OPTIMIZATION; PLASMONICS; DEVICES
英文摘要:
A design to enhance light absorption in thin-film amorphous silicon (a-Si) solar cells is proposed. It is achieved by patterning a double-groove grating with waveguide layer as the absorbing layer and coating a double-groove grating anti-reflective layer in the front window of the cell. The broadband absorption under normal incidence can be achieved for both TE and TM polarizations. It is shown that the averaged integrated absorptions have very large angle independence for the optimized solar cell. An qualitative understanding of such broadband enhanced absorption effect, which is attributed to the guided mode resonance, is presented. The conclusions can be exploited to guide the design of solar cells based on a grating structure. (C) 2015 Elsevier Ltd. All rights reserved.


文献类型: 期刊论文
正文语种: English
收录类别: SCIEI
DOI: 10.1016/j.optlastec.2015.11.021


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