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Chem Commun (Camb). 2014 Mar 18;50(22):2847-50. doi: 10.1039/c3cc47860b. Epub 2013 Dec 17.

Facile assembly of n-SnO(2) nanobelts-p-NiO heterojunctions with enhanced ultraviolet photoresponse.

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  • 1State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China. panw@mail.tsinghua.edu.cn.

Abstract

We present a highly transparent heterojunction photodiode by precisely aligning n-type SnO2 nanobelts on top of a p-type NiO thin film. This p-n junction diode demonstrates stable rectifying characteristics as well as greatly enhanced ultraviolet photoresponse, which exhibits an ultrahigh photosensitivity of up to 10(5) with accelerated response speed under reverse bias.

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