Journal
THIN SOLID FILMS
Volume 520, Issue 6, Pages 2123-2127Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2011.08.100
Keywords
Doped-semiconductor; Thin films; Transparent conductive oxides; Solar cell
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We have prepared aluminum-doped Zinc oxide (AZO) thin films on glass substrates by rf magnetron sputtering technique using ZnO ceramic target in pure argon gas with different aluminum concentrations. The bandgap of the ZnO films slightly widens with increase in Al content and the lowest sheet resistance of AZO films with Al concentration of 4.3 at.% was obtained. The effects of post-annealing treatment on structural, electrical and optical properties of the AZO thin films were investigated. Using AZO thin film with 4.3 at.% Al as the transparent substrate, a titanium dioxide based dye-sensitized solar cell was constructed and a solar to electrical energy conversion efficiency of 2.9% was achieved under AM 1.5 solar simulated sunlight. (C) 2011 Elsevier B.V. All rights reserved.
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