期刊
APPLIED PHYSICS LETTERS
卷 103, 期 25, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4851236
关键词
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资金
- Thousand Talent Program for Young Outstanding Scientists of People's Republic China
- Natural Science Foundation of Ningbo [2013A610030]
We report a significant reflection reduction over a broadband light spectrum in crystalline silicon via introduction of low aspect-ratio honeycomb nanobowl front surface textures. A restructuration technique is developed to shape nanopores into nanobowls, enabling excellent impedance matching and efficient mode coupling. As a result, an overall reflection down to 2% in the spectrum range of 400-1 100 nm wavelength is achieved. In comparison to nanopores-structured light-trapping configurations, the nanobowls-textures have much smaller parasitic surface area, which mitigates the surface recombination losses. The texturing technique offers a promising approach to high efficiency c-Si thin-film solar cells. (C) 2013 AIP Publishing LLC.
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