Enhancing photoresponsivity of self-powered UV photodetectors based on electrochemically reduced TiO2 nanorods. Issue 116 (9th November 2015)

• Record Type: Journal Article
• Authors: Yan, Pengli; Wu, Yihui; Liu, Guiji; Li, Ailong; Han, Hongxian; Feng, Zhaochi; Shi, Jingying; Gan, Yang; Li, Can
• Is Part Of: RSC advances. Volume 5:Issue 116(2015)
• Page Start: 95939
• Page End: 95942
• Publication Date: 2015-11-09
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c5ra18307c
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Enhanced photoresponsivity of the R-NRA device is due to the enhancement of charge separation and transfer at the electrode/electrolyte interface. Abstract : Electrochemically reduced TiO2 nanorod arrays (R-NRAs) have been used for the first time to construct a self-powered, visible light blind ultraviolet (UV) photodetector. The fabricated R-NRAs device demonstrated superior photodetector performance with high photon-to-current efficiency of up to 22.5% at an applied bias of 0 V. The enhancement is attributed to a disordered surface layer which greatly improves the charge separation and transfer efficiency at the electrode/electrolyte interface.