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CuInS2/N3 Co‐Sensitized ZnO Nanorods with Improved Photovoltaic Properties for Solar Cells

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Uniform core/shell nanostructure of ZnO/CuInS2 nanorods was synthesized using ZnO nanorod arrays as reactive templates via solution reaction. The N3 dye was sequentially assembled on the ZnO/CuInS2 arrays to construct a cascading co‐sensitized nanomaterial as photoanode of solar cell. Formation process of CuInS2/ZnO nanostructure and the mechanism of CuInS2 and N3 co‐sensitization were discussed. The IV characteristic measurement indicates an enhanced efficiency by 24.8% as compared to single sensitized by N3 due to abundant light harvesting, higher chemical instability of ZnO/CuInS2 in acid dye, fast injection and transmission velocity, and the slowdown recombination of photo‐excited electrons, simultaneously.

Document Type: Research Article


Publication date: 2012-04-01

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