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Solution-processed omnidirectional antireflection coatings on amorphous silicon solar cells

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Solution-processed omnidirectional antireflection coatings on amorphous silicon solar cells

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dc.contributor.author Zhou, Weidong
dc.contributor.author Wang, Yuehui
dc.contributor.author Tummala, Rajesh
dc.contributor.author Chen, L.
dc.contributor.author Guo, L. Qing
dc.contributor.author Tao, Meng
dc.date.accessioned 2010-09-26T20:56:20Z
dc.date.available 2010-09-26T20:56:20Z
dc.date.issued 2009-05
dc.identifier.uri http://hdl.handle.net/10106/5042
dc.description.abstract Solution-processed spherical surface textures are demonstrated on commercial amorphous silicon solar cells. The texture is formed with a monolayer of silica microspheres by convective coating, followed by a spin-on-glass film. It is found that the spherical texture reduces the reflectivity of the cells in the wavelength regime of 400–1200 nm, thus broad spectrum. It is also found that the spherical texture improves the efficiency of the cells at various incident angles from surface normal to at least 60°. The improvement in efficiency increases at larger incident angles to as high as 12% relative improvement, demonstrating its omnidirectionality. Current-voltage characteristics show that the efficiency improvement with coating is largely due to the increased short circuit current, while the open-circuit voltage remains the same. Therefore the efficiency improvement is attributed to more light coupled into the cells. This omnidirectional surface texture offers an attractive solution for antireflection in both polycrystalline silicon and thin-film solar cells. en_US
dc.language.iso en_US en_US
dc.publisher Original publisher: Journal of Applied Physics en_US
dc.publisher University of Texas at Arlington en
dc.subject Amorphous semiconductors en_US
dc.subject Antireflection coatings en_US
dc.subject Elemental semiconductors en_US
dc.subject Monolayers en_US
dc.subject Silicon en_US
dc.subject Solar cells en_US
dc.subject Surface texture en_US
dc.title Solution-processed omnidirectional antireflection coatings on amorphous silicon solar cells en_US
dc.type Article en_US
dc.publisher.department Department of Electrical Engineering, NanoFAB Center eg
dc.identifier.externalLink https://www.uta.edu/ra/real/editprofile.php?pid=259&onlyview=1 en_US
dc.identifier.externalLinkDescription Link to Research Profiles en_US

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