Release Time:2019-03-09  Hits:

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.