CuO/ZnO Heterojunction Nanorod Arrays Prepared by Photochemical Method with Improved UV Detecting Performance
CuO/ZnO heterojunction nanorod arrays were synthesized using a facile photochemical deposition strategy. The morphology of CuO was related to the concentration of Cu<sup>2+</sup> in the Cu(NO<sub>3</sub>)<sub>2</sub> solution, UV illumination time, and the air ann...
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MDPI AG
2019-05-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/9/5/790 |
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| author | Jieni Li Tingting Zhao Mandar M. Shirolkar Ming Li Haiqian Wang Henan Li |
| author_facet | Jieni Li Tingting Zhao Mandar M. Shirolkar Ming Li Haiqian Wang Henan Li |
| author_sort | Jieni Li |
| collection | DOAJ |
| description | CuO/ZnO heterojunction nanorod arrays were synthesized using a facile photochemical deposition strategy. The morphology of CuO was related to the concentration of Cu<sup>2+</sup> in the Cu(NO<sub>3</sub>)<sub>2</sub> solution, UV illumination time, and the air annealing temperature. A possible reaction mechanism was proposed. In the photochemical deposition process, the OH<sup>−</sup> was generated in the vicinity of the ZnO nanorod arrays and reacted with Cu<sup>2+</sup> and NO<sub>3</sub><sup>−</sup> in the solution to form Cu<sub>2</sub>(NO<sub>3</sub>)(OH)<sub>3</sub>/ZnO heterojunction nanorod arrays firstly, which were converted into CuO/ZnO heterojunction nanorod arrays completely after air annealing at a low temperature. The fabricated CuO/ZnO heterojunction nanorod arrays exhibits a well-defined rectifying characteristic and an improved photo-response performance compared with pure ZnO nanorod arrays. |
| first_indexed | 2024-12-13T03:38:14Z |
| format | Article |
| id | doaj.art-b7e4a9ab025c4caa838eefafb4ab429e |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-12-13T03:38:14Z |
| publishDate | 2019-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-b7e4a9ab025c4caa838eefafb4ab429e2022-12-22T00:01:00ZengMDPI AGNanomaterials2079-49912019-05-019579010.3390/nano9050790nano9050790CuO/ZnO Heterojunction Nanorod Arrays Prepared by Photochemical Method with Improved UV Detecting PerformanceJieni Li0Tingting Zhao1Mandar M. Shirolkar2Ming Li3Haiqian Wang4Henan Li5International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, ChinaHefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, Anhui, ChinaHefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, Anhui, ChinaHefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, Anhui, ChinaHefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, Anhui, ChinaCollege of Electronic Science and Technology, Shenzhen University, Shenzhen 518060, ChinaCuO/ZnO heterojunction nanorod arrays were synthesized using a facile photochemical deposition strategy. The morphology of CuO was related to the concentration of Cu<sup>2+</sup> in the Cu(NO<sub>3</sub>)<sub>2</sub> solution, UV illumination time, and the air annealing temperature. A possible reaction mechanism was proposed. In the photochemical deposition process, the OH<sup>−</sup> was generated in the vicinity of the ZnO nanorod arrays and reacted with Cu<sup>2+</sup> and NO<sub>3</sub><sup>−</sup> in the solution to form Cu<sub>2</sub>(NO<sub>3</sub>)(OH)<sub>3</sub>/ZnO heterojunction nanorod arrays firstly, which were converted into CuO/ZnO heterojunction nanorod arrays completely after air annealing at a low temperature. The fabricated CuO/ZnO heterojunction nanorod arrays exhibits a well-defined rectifying characteristic and an improved photo-response performance compared with pure ZnO nanorod arrays.https://www.mdpi.com/2079-4991/9/5/790CuO/ZnO heterojunction NRsphotochemical depositionimproved UV detecting performanceCu<sub>2</sub>(NO<sub>3</sub>)(OH)<sub>3</sub>/ZnO precursor |
| spellingShingle | Jieni Li Tingting Zhao Mandar M. Shirolkar Ming Li Haiqian Wang Henan Li CuO/ZnO Heterojunction Nanorod Arrays Prepared by Photochemical Method with Improved UV Detecting Performance Nanomaterials CuO/ZnO heterojunction NRs photochemical deposition improved UV detecting performance Cu<sub>2</sub>(NO<sub>3</sub>)(OH)<sub>3</sub>/ZnO precursor |
| title | CuO/ZnO Heterojunction Nanorod Arrays Prepared by Photochemical Method with Improved UV Detecting Performance |
| title_full | CuO/ZnO Heterojunction Nanorod Arrays Prepared by Photochemical Method with Improved UV Detecting Performance |
| title_fullStr | CuO/ZnO Heterojunction Nanorod Arrays Prepared by Photochemical Method with Improved UV Detecting Performance |
| title_full_unstemmed | CuO/ZnO Heterojunction Nanorod Arrays Prepared by Photochemical Method with Improved UV Detecting Performance |
| title_short | CuO/ZnO Heterojunction Nanorod Arrays Prepared by Photochemical Method with Improved UV Detecting Performance |
| title_sort | cuo zno heterojunction nanorod arrays prepared by photochemical method with improved uv detecting performance |
| topic | CuO/ZnO heterojunction NRs photochemical deposition improved UV detecting performance Cu<sub>2</sub>(NO<sub>3</sub>)(OH)<sub>3</sub>/ZnO precursor |
| url | https://www.mdpi.com/2079-4991/9/5/790 |
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