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Xiaodong Li, Caitian Gao, Huigao Duan, Bingan Lu, Youqing Wang, Lulu Chen, Zhenxing Zhang, Xiaojun Pan and Erqing Xie High-Performance Photoelectrochemical-Type Self-Powered UV Photodetector Using Epitaxial TiO2/SnO2 Branched Heterojunction Nanostructure Small 9

Version of Record online: 21 DEC 2012 | DOI: 10.1002/smll.201202408

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A TiO2/SnO2 branched heterojunction nanostructure with TiO2 branches on electrospun SnO2 nanofiber networks is synthesized, which serves as a model architecture for efficient self-powered UV photodetector based on photoelectrochemical cell. The fast response, high responsivity, and good photosensitivity linearity combined with its low cost, environmentally friendly nature, and the facile manufacturing process, make this new type of UV photodetector suitable for practical applications.

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