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Proceedings Paper

Metal-black scattering centers to enhance light harvesting by thin-film solar cells
Author(s): Deep Panjwani; Robert E. Peale; Isaiah Oladeji; F. Khalilzadeh Rezaie; Kevin Baillie; Josh Colwell; Christopher J. Fredricksen
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Paper Abstract

Small metal particles are investigated as scattering centers to increase the effective optical thickness of thin-film solar cells. The particular type of particles used is known as "metal-black", well known as an IR absorber for bolometric infrared detectors. Gold-black was deposited on commercial thin-film solar cells using a thermal evaporator in nitrogen ambient at pressures of ~1 Torr. A broad range of length scales, as revealed by scanning electron microscope images gives rise to effective scattering over a range of wavelengths across the solar spectrum. The solar cell efficiency was determined both as a function of wavelength and for a solar spectrum produced by a Xe lamp and appropriate filters. Up to 20% increase in short-circuit photo-current, and a 5% increase in efficiency at the maximum power point, were observed.

Paper Details

Date Published: 17 May 2011
PDF: 6 pages
Proc. SPIE 8035, Energy Harvesting and Storage: Materials, Devices, and Applications II, 80350N (17 May 2011); doi: 10.1117/12.883467
Show Author Affiliations
Deep Panjwani, Univ. of Central Florida (United States)
Robert E. Peale, Univ. of Central Florida (United States)
Isaiah Oladeji, SISOM Thin Films, LLC (United States)
F. Khalilzadeh Rezaie, Univ. of Central Florida (United States)
Kevin Baillie, Univ. of Central Florida (United States)
Josh Colwell, Univ. of Central Florida (United States)
Christopher J. Fredricksen, LRC Engineering Inc. (United States)


Published in SPIE Proceedings Vol. 8035:
Energy Harvesting and Storage: Materials, Devices, and Applications II
Nibir K. Dhar; Priyalal S. Wijewarnasuriya; Achyut K. Dutta, Editor(s)

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