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Title:
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Plasmonic light-trapping in a-Si:H solar cells by front-side Ag nanoparticle arrays: A benchmarking study
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Author(s):
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Published by:
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Publication date:
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ECN
Solar Energy
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29-7-2013
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ECN report number:
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Document type:
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ECN-W--13-033
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Article (scientific)
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Number of pages:
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5
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Published in: Physica Status Solidi (A) (Wiley-VCH Verlag GmbH & Co), , 2013, Vol.210, no.8, p.1571-1574.
Abstract:
A series of (n-i-p) a-Si:H solar cells with light-trapping by front-side plasmonic Ag nonoparticle arrays was compared to a reference without the plasmonic arrays as well as to a benchmark with a conventional textured back-side reflector for light-trapping. The external quantum efficiency of the solar cells was determined experimentally by spectral response measurements. The comparison gives a comprehensive snap-shot of the potential of front-side plasmonic light-trapping in a-Si:H solar cells for the array parameterization used in this study. Relative to the reference the plasmonic arrays lead to clearly enhanced light-trapping in the longer wavelength range (600-800 nm). This enhancement is lower than the one achieved by the benchmark though, which is discussed in terms of further perspectives.
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