Photoelectrochemical characteristics of ZnO/ TiO2 nanoheterojunctions
In this paper, TiO2 nanotubes are fabricated on Ti foils by anodic oxidation, a layer of ZnO nanorod arrays is further deposited on the TiO2 nanotube without seed layer by a hydrothermal method at different Zn2+ concentration. The result shows that the ZnO nanorods mainly present needle-like structu...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2019-03-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.5090306 |
| _version_ | 1818007489764917248 |
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| author | Fang Wang Dengji Yu Jun Dai |
| author_facet | Fang Wang Dengji Yu Jun Dai |
| author_sort | Fang Wang |
| collection | DOAJ |
| description | In this paper, TiO2 nanotubes are fabricated on Ti foils by anodic oxidation, a layer of ZnO nanorod arrays is further deposited on the TiO2 nanotube without seed layer by a hydrothermal method at different Zn2+ concentration. The result shows that the ZnO nanorods mainly present needle-like structure and the density of the nanorods increases with the Zn2+ concentration. The PL of the ZnO nanorods show that there are defect levels formed in the ZnO nanorods. When the ZnO/TiO2 heterostructure is irradiated by the light, the photocurrent is significantly increased by about 2-3 times of that from pure TiO2 nanotubes. The band diagram of the ZnO/TiO2/Ti was proposed to interpret the photocurrent characteristics. Our result indicates that the ZnO/TiO2 can be excellent candidate semiconductor material for the photoelectrochemical energy transfer. |
| first_indexed | 2024-04-14T05:16:16Z |
| format | Article |
| id | doaj.art-1f490de736b343139206a49cd44626d4 |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-04-14T05:16:16Z |
| publishDate | 2019-03-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-1f490de736b343139206a49cd44626d42022-12-22T02:10:21ZengAIP Publishing LLCAIP Advances2158-32262019-03-0193035237035237-510.1063/1.5090306075903ADVPhotoelectrochemical characteristics of ZnO/ TiO2 nanoheterojunctionsFang Wang0Dengji Yu1Jun Dai2Department of Physics, College of Science, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaDepartment of Physics, College of Science, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaDepartment of Physics, College of Science, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaIn this paper, TiO2 nanotubes are fabricated on Ti foils by anodic oxidation, a layer of ZnO nanorod arrays is further deposited on the TiO2 nanotube without seed layer by a hydrothermal method at different Zn2+ concentration. The result shows that the ZnO nanorods mainly present needle-like structure and the density of the nanorods increases with the Zn2+ concentration. The PL of the ZnO nanorods show that there are defect levels formed in the ZnO nanorods. When the ZnO/TiO2 heterostructure is irradiated by the light, the photocurrent is significantly increased by about 2-3 times of that from pure TiO2 nanotubes. The band diagram of the ZnO/TiO2/Ti was proposed to interpret the photocurrent characteristics. Our result indicates that the ZnO/TiO2 can be excellent candidate semiconductor material for the photoelectrochemical energy transfer.http://dx.doi.org/10.1063/1.5090306 |
| spellingShingle | Fang Wang Dengji Yu Jun Dai Photoelectrochemical characteristics of ZnO/ TiO2 nanoheterojunctions AIP Advances |
| title | Photoelectrochemical characteristics of ZnO/ TiO2 nanoheterojunctions |
| title_full | Photoelectrochemical characteristics of ZnO/ TiO2 nanoheterojunctions |
| title_fullStr | Photoelectrochemical characteristics of ZnO/ TiO2 nanoheterojunctions |
| title_full_unstemmed | Photoelectrochemical characteristics of ZnO/ TiO2 nanoheterojunctions |
| title_short | Photoelectrochemical characteristics of ZnO/ TiO2 nanoheterojunctions |
| title_sort | photoelectrochemical characteristics of zno tio2 nanoheterojunctions |
| url | http://dx.doi.org/10.1063/1.5090306 |
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