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Frontiers of Materials Science

ISSN 2095-025X

ISSN 2095-0268(Online)

CN 11-5985/TB

Postal Subscription Code 80-974

2018 Impact Factor: 1.701

Front Mater Sci Chin    2009, Vol. 3 Issue (1) : 44-47    https://doi.org/10.1007/s11706-009-0016-1
COMMUNICATION
Preparation of V2O5 thin film and its optical characteristics
Yu-quan WANG, Zheng-cao LI, Zheng-jun ZHANG()
Advanced Materials Laboratory, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
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Abstract

A two-step method was proposed to synthesize V2O5 films on planar substrates, i.e., depositing a V2O3 thin film at ~160°C (by heating a pure sheet of vanadium in a rough vacuum) and then heat-treating it in air at ~600°C. The films, made up of nano crystal particles, had good photoluminescence (PL) properties, and the peak was in the position of about 700 nm. Further, photosensitivity characteristics of these V2O5 thin films were investigated at room temperature. The results show that this film is sensitive to ultraviolet rays, which indicates good potential application for an ultraviolet photo detector (UVPD).

Keywords vanadium oxides      thin films      photoluminescence      photosensitive     
Corresponding Author(s): ZHANG Zheng-jun,Email:zjzhang@tsinghua.edu.cn   
Issue Date: 05 March 2009
 Cite this article:   
Yu-quan WANG,Zheng-cao LI,Zheng-jun ZHANG. Preparation of V2O5 thin film and its optical characteristics[J]. Front Mater Sci Chin, 2009, 3(1): 44-47.
 URL:  
https://academic.hep.com.cn/foms/EN/10.1007/s11706-009-0016-1
https://academic.hep.com.cn/foms/EN/Y2009/V3/I1/44
Fig.1  SEM images of the as-deposited VO film, and VO film after heating at 600°C in air
Fig.2  XRD patterns of the VO thin film and VO film after heating at 600°C in air on silicon/silica substrates
Fig.3  Room-temperature PL spectrum of the sample after heating at 500°C in air
Fig.4  Cycle line of the photosensitivity measurement on the annealed sample after heating at 500°C in air
Fig.5  The dependence of the photoresistivity with the intensity of illumination
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