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Nanosphere lithography of nanostructured silver films on thin-film silicon solar cells for light trapping

Published online by Cambridge University Press:  31 January 2011

Birol Ozturk ,
Eric A Schiff ,
Hui Zhao ,
Subhendu Guha ,
Baojie Yan  and
Jeff Yang
Birol Ozturk
Affiliation:
biozturk@syr.edu, Syracuse University, Physics, Syracuse, New York, United States
Eric A Schiff
Affiliation:
easchiff@syr.edu, Syracuse University, Physics, Syracuse, New York, United States
Hui Zhao
Affiliation:
hzhao01@physics.syr.edu, Syracuse University, Physics, Syracuse, New York, United States
Subhendu Guha
Affiliation:
sguha@uni-solar.com, United States
Baojie Yan
Affiliation:
byan@uni-solar.com, United Solar Ovonic LLC, Troy, Michigan, United States
Jeff Yang
Affiliation:
jyang@uni-solar.com, United Solar Ovonic LLC, Troy, Michigan, United States
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Abstract

Sparse arrays of evaporated silver nanodiscs were fabricated with nanosphere lithography (NSL) on glass substrates and on hydrogenated nanocrystalline silicon solar cells. The optical transmittance spectra for arrays on glass vary substantially with film thickness, and were reasonably consistent with previous work. The quantum efficiency spectra of hydrogenated nanocrystalline silicon solar cells show spectral shifts due to coupling of surface plasmons in the metal nanodiscs to the planar waveguide modes of the cells, with overall photocurrent enhancement up to 10%.

Keywords

photovoltaicnanostructureoptical properties

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