Journal
APPLIED SURFACE SCIENCE
Volume 365, Issue -, Pages 136-142Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2016.01.043
Keywords
Quantum dot-sensitized solar cell; ZnO nanorods; Yttrium doping
Categories
Funding
- Ministry of Education [2014-020479]
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Yttrium-doped ZnO nanorod arrays were applied to photoanodes of quantum dot-sensitized solar cells (QDSCs). The introduction of yttrium to ZnO nanostructures facilitates the growth of ZnO nanorods and increases the amount of QD deposition with a large surface area. Furthermore, lower electrical resistance and longer electron lifetime were achieved with yttrium-doping owing to fewer defects and trap sites on the surface of yttrium-doped ZnO nanorods. As a result, the conversion efficiency of 3.3% was achieved with the optimized concentration of yttrium. (C) 2016 Elsevier B.V. All rights reserved.
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