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Title: Porous SiO2 anti-reflective coatings on large-area substrates by electrospinning and their application to solar modules
Authors: Raut, H.K.
Nair, A.S.
Dinachali, S.S.
Ganesh, V.A.
Walsh, T.M.
Ramakrishna, S. 
Keywords: Anti-reflective coatings
Porous SiO2
Solar modules
Issue Date: 2013
Citation: Raut, H.K., Nair, A.S., Dinachali, S.S., Ganesh, V.A., Walsh, T.M., Ramakrishna, S. (2013). Porous SiO2 anti-reflective coatings on large-area substrates by electrospinning and their application to solar modules. Solar Energy Materials and Solar Cells 111 : 9-15. ScholarBank@NUS Repository.
Abstract: Fabrication of large-area anti-reflective coatings (ARCs) on glass substrates by using a cost-efficient and simple approach, especially for applications in photovoltaics, remains a challenge. This study proposes electrospinning as a technique to fabricate porous SiO2 ARCs on large-area glass substrates (20×20 cm2). The existing electrospinning setup is modified to enable large-area glass coatings and electrospinning process parameters are optimized to achieve sub-wavelength ARCs. The post-sintered SiO2 ARC is thoroughly characterized for the film morphology and optical properties. The transmittance for one-side and both-sides coated glass is found to be 94.3% and 96% respectively. The anti-reflective glass is incorporated in solar modules to determine the increase in short circuit current. The increase in short-circuit current is found to be 3%. Electrospinning as a fabrication technique has potential in offering a cost effective solution for synthesizing ARCs on large-area substrates for photovoltaic applications. © 2012 Elsevier B.V.
Source Title: Solar Energy Materials and Solar Cells
ISSN: 09270248
DOI: 10.1016/j.solmat.2012.12.023
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