Acta Photonica Sinica ›› 2019, Vol. 48 ›› Issue (6): 604003-0604003.doi: 10.3788/gzxb20194806.0604003

• Detectors • Previous Articles     Next Articles

Fabrication and Properties of Ultraviolet Detector Based on Ag-modified TiO2 Nanotubes

FANG Xiang-ming1,2, LI Xiang2, JIA Jie2, SANG Dan-dan3, GAO Shi-yong2   

  1. 1. Department of Physics, Taiyuan University, Taiyuan 030032, China;
    2. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China;
    3. Shandong Key Laboratory of Optical Communication Science and Technology, School of Physical Science and Information Technology, Liaocheng University, Liaocheng, Shandong 252000, China
  • Received:2019-01-22 Online:2019-06-25 Published:2019-04-09
  • Supported by:

    The Natural Science Foundation of Shandong Province (No.ZR2017QA013), Postdoctoral Scientific Research Foundation of Heilongjiang Province (No.LBH-Q16104)


TiO2 nanotubes were synthesized on FTO substrate by liquid phase deposition method. Subsequently Ag particles were photodeposited on the surface of TiO2 nanotubes. Moreover the obtained array was investigated by SEM, EDS and XRD. As a result, TiO2 nanotubes exhite anatase phase, and there are obvious Ag particles attached on the surface of the tube wall. Under UV irradiation, the ultraviolet detector based on Ag/TiO2 nanotubes shown the excellent visible-blind characteristic. After a deposition of Ag, the ultraviolet detector based on Ag/TiO2 nanotubes exhibited a high on/off ratio of 2 251, together with the photocurrent density of 91μA/cm2.

Key words: TiO2 nanotubes, Ultraviolet detector, Photodeposition method, Liquid phase deposition, Ag nanoparticles

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