Investigation of the preparation and performance of Ag-modified ZnO nanowall ultraviolet detector
In this paper, silver (Ag) nanoparticle-modified zinc oxide (ZnO) nanowall photoconductive ultraviolet photodetector was prepared by using magnetron sputtering technology, electron beam evaporation method and hydrothermal method. The results showed that ZnO nanowalls exhibited a hexagonal wurtzite s...
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| Format: | Article |
| Language: | English |
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World Scientific Publishing
2025-04-01
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| Series: | Journal of Advanced Dielectrics |
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| Online Access: | https://www.worldscientific.com/doi/10.1142/S2010135X24500218 |
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| author | Xiaoyang Wang Juntang Dong Shiguang Shang Shiheng Xin Shiping Li Tingting Shao Yanning Yang Fuchun Zhang Zeheng Ni |
| author_facet | Xiaoyang Wang Juntang Dong Shiguang Shang Shiheng Xin Shiping Li Tingting Shao Yanning Yang Fuchun Zhang Zeheng Ni |
| author_sort | Xiaoyang Wang |
| collection | DOAJ |
| description | In this paper, silver (Ag) nanoparticle-modified zinc oxide (ZnO) nanowall photoconductive ultraviolet photodetector was prepared by using magnetron sputtering technology, electron beam evaporation method and hydrothermal method. The results showed that ZnO nanowalls exhibited a hexagonal wurtzite structure. ZnO nanowalls grew uniformly perpendicular to the substrate, and metallic Ag nanoparticles were uniformly attached to the surface of ZnO nanowalls, effectively improving the ZnO nanowall absorption capability in the ultraviolet light region. The dark current of the Ag-modified ZnO nanowall UV detector deposited by sputtering for 40[Formula: see text]s was 0.042[Formula: see text]mA, revealing a decrease of 44%. Under the irradiation of ultraviolet light with a wavelength of 325[Formula: see text]nm, the photocurrent reached 3.088[Formula: see text]mA, which increased by four times. The responsivity increased from 27.29 to 101.07[Formula: see text]mA/W, and the sensitivity increased from 8.07 to 73.52. In addition to the good repeatability and stability, the response time was reduced by 64%, and the recovery time was decreased by 50%. |
| format | Article |
| id | doaj-art-ff3cd7bcf713498ea08cb6d27f9e4c9a |
| institution | Kabale University |
| issn | 2010-135X 2010-1368 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | World Scientific Publishing |
| record_format | Article |
| series | Journal of Advanced Dielectrics |
| spelling | doaj-art-ff3cd7bcf713498ea08cb6d27f9e4c9a2025-01-07T03:28:07ZengWorld Scientific PublishingJournal of Advanced Dielectrics2010-135X2010-13682025-04-01150210.1142/S2010135X24500218Investigation of the preparation and performance of Ag-modified ZnO nanowall ultraviolet detectorXiaoyang Wang0Juntang Dong1Shiguang Shang2Shiheng Xin3Shiping Li4Tingting Shao5Yanning Yang6Fuchun Zhang7Zeheng Ni8School of Physics and Electronic Information, Yan’an University, Shaanxi, Yan’an 716000, P. R. ChinaSchool of Physics and Electronic Information, Yan’an University, Shaanxi, Yan’an 716000, P. R. ChinaSchool of Electronic Engineering, Xi’an University of Posts and Telecommunications, Shaanxi, Xi’an 710121, P. R. ChinaSchool of Physics and Electronic Information, Yan’an University, Shaanxi, Yan’an 716000, P. R. ChinaSchool of Physics and Electronic Information, Yan’an University, Shaanxi, Yan’an 716000, P. R. ChinaSchool of Physics and Electronic Information, Yan’an University, Shaanxi, Yan’an 716000, P. R. ChinaSchool of Physics and Electronic Information, Yan’an University, Shaanxi, Yan’an 716000, P. R. ChinaSchool of Physics and Electronic Information, Yan’an University, Shaanxi, Yan’an 716000, P. R. ChinaSchool of Physics and Electronic Information, Yan’an University, Shaanxi, Yan’an 716000, P. R. ChinaIn this paper, silver (Ag) nanoparticle-modified zinc oxide (ZnO) nanowall photoconductive ultraviolet photodetector was prepared by using magnetron sputtering technology, electron beam evaporation method and hydrothermal method. The results showed that ZnO nanowalls exhibited a hexagonal wurtzite structure. ZnO nanowalls grew uniformly perpendicular to the substrate, and metallic Ag nanoparticles were uniformly attached to the surface of ZnO nanowalls, effectively improving the ZnO nanowall absorption capability in the ultraviolet light region. The dark current of the Ag-modified ZnO nanowall UV detector deposited by sputtering for 40[Formula: see text]s was 0.042[Formula: see text]mA, revealing a decrease of 44%. Under the irradiation of ultraviolet light with a wavelength of 325[Formula: see text]nm, the photocurrent reached 3.088[Formula: see text]mA, which increased by four times. The responsivity increased from 27.29 to 101.07[Formula: see text]mA/W, and the sensitivity increased from 8.07 to 73.52. In addition to the good repeatability and stability, the response time was reduced by 64%, and the recovery time was decreased by 50%.https://www.worldscientific.com/doi/10.1142/S2010135X24500218UV detectorZnO nanowallAg modificationhydrothermal method |
| spellingShingle | Xiaoyang Wang Juntang Dong Shiguang Shang Shiheng Xin Shiping Li Tingting Shao Yanning Yang Fuchun Zhang Zeheng Ni Investigation of the preparation and performance of Ag-modified ZnO nanowall ultraviolet detector Journal of Advanced Dielectrics UV detector ZnO nanowall Ag modification hydrothermal method |
| title | Investigation of the preparation and performance of Ag-modified ZnO nanowall ultraviolet detector |
| title_full | Investigation of the preparation and performance of Ag-modified ZnO nanowall ultraviolet detector |
| title_fullStr | Investigation of the preparation and performance of Ag-modified ZnO nanowall ultraviolet detector |
| title_full_unstemmed | Investigation of the preparation and performance of Ag-modified ZnO nanowall ultraviolet detector |
| title_short | Investigation of the preparation and performance of Ag-modified ZnO nanowall ultraviolet detector |
| title_sort | investigation of the preparation and performance of ag modified zno nanowall ultraviolet detector |
| topic | UV detector ZnO nanowall Ag modification hydrothermal method |
| url | https://www.worldscientific.com/doi/10.1142/S2010135X24500218 |
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