Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1610401 | Journal of Alloys and Compounds | 2015 | 4 Pages |
Abstract
TiO2 nanowires array is synthesized on the FTO via hydrothermal method, which is modified with ZnO prepared by using the crystallization method. The fabricated ultraviolet detector based on TiO2/ZnO heterojunction possesses high photoelectric performance evaluated by the photo-to-dark current ratio, which has been demonstrated to reach 4 orders of magnitude. The separation of electron–hole pairs is facilitated by the built-in electric field in heterojunction, resulting in a large photocurrent as well as a high responsivity, which can attain 150 A/W. Compared with the pure TiO2 device, The red shift in both absorption spectrum and photo response provides a potential application for the TiO2/ZnO device.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Dezhong Zhang, Xuehui Gu, Fuyi Jing, Fengli Gao, Jingran Zhou, Shengping Ruan,