Enhanced UV Photoresponsivity of ZnO Nanorods Decorated with Ag<sub>2</sub>S/ZnS Nanoparticles by Successive Ionic Layer Adsorption and Reaction Method
Recently, different kinds of energy band structures have been utilized to improve the photoelectric properties of zinc oxide (ZnO). In this work, ZnO nanorods were prepared by the hydrothermal method and then decorated with silver sulfide (Ag<sub>2</sub>S)/zinc sulfide (ZnS) via two-step...
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MDPI AG
2021-02-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/11/2/461 |
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| author | Yimin Jin Shujie Jiao Dongbo Wang Shiyong Gao Jinzhong Wang |
| author_facet | Yimin Jin Shujie Jiao Dongbo Wang Shiyong Gao Jinzhong Wang |
| author_sort | Yimin Jin |
| collection | DOAJ |
| description | Recently, different kinds of energy band structures have been utilized to improve the photoelectric properties of zinc oxide (ZnO). In this work, ZnO nanorods were prepared by the hydrothermal method and then decorated with silver sulfide (Ag<sub>2</sub>S)/zinc sulfide (ZnS) via two-step successive ionic layer adsorption and reaction method. The photoelectric properties of nanocomposites are investigated. The results show that ZnO decorated with Ag<sub>2</sub>S/ZnS can improve the photocurrent of photodetectors from 0.34 to 0.56 A at bias of 9 V. With the immersion time increasing from 15 to 60 minutes, the photocurrent of photodetectors increases by 0.22 A. The holes in the valence band of ZnO can be transferred to the valence band of ZnS and Ag<sub>2</sub>S, which promotes the separation and suppresses the recombination of hole-electron pairs generated in ZnO. Moreover, electrons excited by ultraviolet (UV) light in Ag<sub>2</sub>S can also be injected into the conduction band of ZnO, which causes the photocurrent to increase more than the ZnO photodetector. |
| first_indexed | 2024-03-09T04:43:54Z |
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| id | doaj.art-56aabf2ae6b64f4aa2cc9adc7b207b14 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T04:43:54Z |
| publishDate | 2021-02-01 |
| publisher | MDPI AG |
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| series | Nanomaterials |
| spelling | doaj.art-56aabf2ae6b64f4aa2cc9adc7b207b142023-12-03T13:18:00ZengMDPI AGNanomaterials2079-49912021-02-0111246110.3390/nano11020461Enhanced UV Photoresponsivity of ZnO Nanorods Decorated with Ag<sub>2</sub>S/ZnS Nanoparticles by Successive Ionic Layer Adsorption and Reaction MethodYimin Jin0Shujie Jiao1Dongbo Wang2Shiyong Gao3Jinzhong Wang4School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, ChinaRecently, different kinds of energy band structures have been utilized to improve the photoelectric properties of zinc oxide (ZnO). In this work, ZnO nanorods were prepared by the hydrothermal method and then decorated with silver sulfide (Ag<sub>2</sub>S)/zinc sulfide (ZnS) via two-step successive ionic layer adsorption and reaction method. The photoelectric properties of nanocomposites are investigated. The results show that ZnO decorated with Ag<sub>2</sub>S/ZnS can improve the photocurrent of photodetectors from 0.34 to 0.56 A at bias of 9 V. With the immersion time increasing from 15 to 60 minutes, the photocurrent of photodetectors increases by 0.22 A. The holes in the valence band of ZnO can be transferred to the valence band of ZnS and Ag<sub>2</sub>S, which promotes the separation and suppresses the recombination of hole-electron pairs generated in ZnO. Moreover, electrons excited by ultraviolet (UV) light in Ag<sub>2</sub>S can also be injected into the conduction band of ZnO, which causes the photocurrent to increase more than the ZnO photodetector.https://www.mdpi.com/2079-4991/11/2/461ZnOAg<sub>2</sub>Ssuccessive ionic layer adsorption and reactionphotodetector |
| spellingShingle | Yimin Jin Shujie Jiao Dongbo Wang Shiyong Gao Jinzhong Wang Enhanced UV Photoresponsivity of ZnO Nanorods Decorated with Ag<sub>2</sub>S/ZnS Nanoparticles by Successive Ionic Layer Adsorption and Reaction Method Nanomaterials ZnO Ag<sub>2</sub>S successive ionic layer adsorption and reaction photodetector |
| title | Enhanced UV Photoresponsivity of ZnO Nanorods Decorated with Ag<sub>2</sub>S/ZnS Nanoparticles by Successive Ionic Layer Adsorption and Reaction Method |
| title_full | Enhanced UV Photoresponsivity of ZnO Nanorods Decorated with Ag<sub>2</sub>S/ZnS Nanoparticles by Successive Ionic Layer Adsorption and Reaction Method |
| title_fullStr | Enhanced UV Photoresponsivity of ZnO Nanorods Decorated with Ag<sub>2</sub>S/ZnS Nanoparticles by Successive Ionic Layer Adsorption and Reaction Method |
| title_full_unstemmed | Enhanced UV Photoresponsivity of ZnO Nanorods Decorated with Ag<sub>2</sub>S/ZnS Nanoparticles by Successive Ionic Layer Adsorption and Reaction Method |
| title_short | Enhanced UV Photoresponsivity of ZnO Nanorods Decorated with Ag<sub>2</sub>S/ZnS Nanoparticles by Successive Ionic Layer Adsorption and Reaction Method |
| title_sort | enhanced uv photoresponsivity of zno nanorods decorated with ag sub 2 sub s zns nanoparticles by successive ionic layer adsorption and reaction method |
| topic | ZnO Ag<sub>2</sub>S successive ionic layer adsorption and reaction photodetector |
| url | https://www.mdpi.com/2079-4991/11/2/461 |
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