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Lee, Jeong Chul
Interdisciplinary School of Green Energy
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Improvement of solar cell efficiency by applying Si3N4 nanopattern on glass substrate

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Title
Improvement of solar cell efficiency by applying Si3N4 nanopattern on glass substrate
Author
Lee, Jeong ChulKim, Yang DooShin, Ju-HyeonOh, Kyeong SukLee, Heon
Keywords
Amorphous silicon solar cell; Si3N4 nano-sized pattern; Light scattering effect; Planarization; Nanoimprint lithography
Issue Date
2014-09
Publisher
ELSEVIER SCIENCE BV
Citation
CURRENT APPLIED PHYSICS, v.14, no.9, pp.1240 - 1244
Abstract
A cylindrical Si3N4 nanopattern whose heights was 200 nm was fabricated on a glass substrate, and an aluminum-doped zinc oxide (AZO) layer was grown on the nanopatterned glass substrate. The nano-pattern was applied to an amorphous silicon solar cell in order to increase the light-scattering effect, thus enhancing the efficiency of the solar cell. The reflectance of the solar cell on the Si3N4 nanopattern decreased and its absorption increased. Compared to a flat substrate, the short-circuit current density (J(SC)) and conversion efficiency of a solar cell on the Si3N4 nanopatterned substrate were improved by 17.9% and 24.2%, respectively, as determined from solar simulator measurements.
URI
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DOI
10.1016/j.cap.2014.05.013
ISSN
1567-1739
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ECHE_Journal Papers
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