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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