Porous Tin Oxide Nanosheets with Enhanced Conversion Efficiency as Dye-Sensitized Solar Cell Electrode

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State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, Nanjing National Laboratory of Microstructures, and Department of Materials Science and Engineering, Nanjing University, Nanjing 210093, People’s Republic of China
Cite this: J. Phys. Chem. C 2014, 118, 30, 16856–16862
Publication Date (Web):May 14, 2014
https://doi.org/10.1021/jp500364v
Copyright © 2014 American Chemical Society
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Abstract

In this study, porous SnO2 nanosheets composed of SnO2 nanoparticles were prepared by calcining SnS2 nanosheets. The SnO2 nanoparticles have an average diameter of 15–20 nm and porous SnO2 nanosheets have a large specific surface area of 37.39 m2/g. As photoanodes, the dye-sensitized solar cell (DSSCs) based on porous SnO2 nanosheets show a superior power conversion efficiency of 0.562%, improved by 134.2% compared to pure SnO2 nanoplate (0.240%). The efficiency improvement could be attributed to the unique porous architecture, which provides efficient electron channels and excellent ability of light scattering.

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N2 physisorption isotherms and pore size distributions of both SnS2 and porous SnO2 nanosheets; TEM image of SnO2 nanoparticles. This material is available free of charge via the Internet at http://pubs.acs.org.

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Cited By


This article is cited by 14 publications.

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