Growth differences of AZO on different glass textures and their application in thin film silicon solar cells
Date
2014
Authors
Lluscá, M.
Morrone, L.
Caballero, A.
Antony, A.
Asensi, J.M.
Andreu, J.
Bertomeu, J.
Editors
Bokhoven, T.P.
Jager-Waldau, A.
Helm, P.
Jager-Waldau, A.
Helm, P.
Advisors
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Conference paper
Citation
Proceedings of the EU PVSEC 2014 (Amsterdam), 2014 / Bokhoven, T.P., Jager-Waldau, A., Helm, P. (ed./s), pp.1912-1916
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Conference Name
29th European Photovoltaic Solar Energy Conference and Exhibition (22 Sep 2014 - 26 Sep 2014 : Amsterdam, The Netherlands)
Abstract
Texturing of glass substrate instead of using conventional naturally textured transparent conducting oxidesis a good alternative to enhance light absorption in thin film silicon solar cells. In this work, we present textured glass substrates with two extremely different roughness values (rms =56 nm and rms =146 nm), achieved through the aluminium induced texturing method. Al-doped ZnO front contacts were deposited over both these textured glasses by sputtering resulting in a double texture based on U-shape craters for the softer roughness, and a cauliflower-like textured surface for the higher roughness one. The morphology, structure, optical and electrical properties of the ZnO:Al layers deposited over these textured glasses are described and the suitability of these textured substrates for thin film Si solar cells (c-Si p type/ a-Si p-i-n) is also presented.
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Copyright 2015 WIP Wirtschaft und Infrastruktur