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Porous Tin Oxide Nanosheets with Enhanced Conversion Efficiency as Dye-Sensitized Solar Cell Electrode
journal contribution
posted on 2014-07-31, 00:00 authored by Xiaoqian Xu, Fangjian Qiao, Liyun Dang, Qingyi Lu, Feng GaoIn 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.