期刊
APPLIED PHYSICS LETTERS
卷 93, 期 11, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.2957980
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资金
- UCSD Von Liebig Center
- AFOSR [FA9550-07-1-0148]
The influence of electromagnetic scattering by Au and silica nanoparticles placed atop silicon photovoltaic devices on absorption and photocurrent generation has been investigated. The nanoparticles produce substantial increases in power transmission into the semiconductor and consequently photocurrent response from similar to 500 to > 1000 nm. Increases in power conversion efficiency under simulated solar irradiation of up to 8.8% are observed experimentally, and numerical simulations provide quantitatively accurate predictions of these observed enhancements. Additional simulations indicate that these concepts can be applied to a broad range of photovoltaic device structures, including those based on low-index materials for which conventional antireflection coatings are problematic. (C) 2008 American Institute of Physics.
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