Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates
Title : Director of R & D Center of Membrane Science and Technology
Paper Publications
Hybrid UV photodetector with high photo-to-dark current ratio based on ordered TiO2 nanorod arrays and polystyrene sulfate
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Indexed by:Journal Article
Date of Publication:2013-11-01
Journal:SCIENCE CHINA-TECHNOLOGICAL SCIENCES
Included Journals:Scopus、EI、SCIE
Volume:56
Issue:11
Page Number:2642-2645
ISSN:1674-7321
Key Words:TiO2 nanorods arrays; UV photodetector; polystyrene sulfate (PSS) functionalized
Abstract:Vertically aligned TiO2 nanorods arrays were successfully synthesized on FTO glass by wet-chemical method. Based on polystyrene sulfate (PSS) functionalized TiO2 nanorods arrays, a sandwich-structured hybrid UV photodetector was fabricated. The photo-to-dark current ratio of the device increases by more than 3 orders of magnitude with typical case, while the dark current is about 10 nA at 1 V bias. The high photoresponse together with the low dark current could probably contribute a large photocurrent and low-power application. The high performance of the hybrid material and facile low-cost fabrication of the UV detector make the devices promising for large-area UV photodetection applications.