Field-Emission and Photoelectrical Characteristics of ZnO Nanorods Photodetectors Prepared on Flexible Substrate
| Autor: | Shoou-Jinn Chang, Sheng-Joue Young, Tzu Pin Chen, C. H. Hsiao, Chien Sheng Huang |
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| Rok vydání: | 2012 |
| Předmět: |
Photocurrent
Materials science Renewable Energy Sustainability and the Environment business.industry Photodetector Nanotechnology Substrate (electronics) Condensed Matter Physics Surfaces Coatings and Films Electronic Optical and Magnetic Materials Field electron emission Electric field Materials Chemistry Electrochemistry Optoelectronics Nanorod business Absorption (electromagnetic radiation) Polyimide |
| Zdroj: | Journal of The Electrochemical Society. 159:J153-J157 |
| ISSN: | 1945-7111 0013-4651 |
| DOI: | 10.1149/2.jes037205 |
| Popis: | Vertical zinc oxide nanorods were synthesized on flexible polyimide (PI) substrate by a low temperature process, aqueous method. The field emission performance of ZnO nanorods can be greatly enhanced by illuminating UV light. It was found that the turn-on electric field can be reduced from 4.3 to 2.0 V/μm and it is attributed to generate a large number of electrons by UV illumination. Compared with the conventional ZnO film photodetectors, the ZnO nanorods photodetectors have much higher photocurrent. As a result, it is attributed to high surface-to-volume ratio of nanorods, which provide an efficient light trapping absorption. |
| Databáze: | OpenAIRE |
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