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Zejun Li, Zhenpeng Hu, Jing Peng, Changzheng Wu, Yuchen Yang, Feng Feng, Peng Gao, Jinlong Yang and Yi Xie Ultrahigh Infrared Photoresponse from Core–Shell Single-Domain-VO2/V2O5 Heterostructure in Nanobeam Advanced Functional Materials 24

Version of Record online: 18 NOV 2013 | DOI: 10.1002/adfm.201302967

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First oxide-catalogue photoconductive NIR detector built by the inner single-domain monoclinic VO2 (M) core and outer V2O5 shell is put forward, which accomplished an ultrahigh responsivity (Rλ) of 2873.7 A W-1 and specific detectivity (D*) of 9.23 × 1012 Jones at room temperature (at 990 nm; 0.2 mW cm-2), recording the best performance compared with those reported IR detectors based on heavy-metal-free materials.

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