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Suppression of Charge Recombination Rate in Nanocrystalline SnO2 by Thin Coatings of Divalent Oxides in Dye-Sensitized Solar Cells

Authors
Lee, Chaehyeon; Lee, Gi-Won; Kang, Weekyung; Lee, Doh-Kwon; Ko, Min Jae; Kim, Kyoungkon; Park, Nam-Gyu
Issue Date
2010-11-20
Publisher
KOREAN CHEMICAL SOC
Citation
BULLETIN OF THE KOREAN CHEMICAL SOCIETY, v.31, no.11, pp.3093 - 3098
Abstract
The core-shell SnO2@AO (A =Ni, Cu, Zn and Mg) films were prepared and the effects of coatings on photovoltaic properties were investigated Studies on X-ray photoelectron spectroscopy, energy dispersive X-ray analysis and transmission electron microscopy showed the formation of divalent oxides on the surface of SnO2 nanoparticles It was commonly observed that all the dye-sensitized core-shell films exhibited higher photovoltage than the bare SnO2 film Trans tent photovoltage measurements confirmed that the Improved photovoltages were related to the decreased time constants for electron recombination
Keywords
X-RAY PHOTOELECTRON; SHELL NANOPOROUS ELECTRODE; CONVERSION EFFICIENCY; FILMS; CORE; NICKEL; XPS; HYDROXIDES; TRANSPORT; GEOMETRY; X-RAY PHOTOELECTRON; SHELL NANOPOROUS ELECTRODE; CONVERSION EFFICIENCY; FILMS; CORE; NICKEL; XPS; HYDROXIDES; TRANSPORT; GEOMETRY; Core-shell; Surface coating; Dye-sensitized solar cell; Charge recombination; Nanocrystalline SnO2
ISSN
0253-2964
URI
https://pubs.kist.re.kr/handle/201004/130912
DOI
10.5012/bkcs.2010.31.11.3093
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KIST Article > 2010
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