Microstructure evolution and SERS performance of self-formed Ag nanoparticles/Ag-27.9 at% Co-8.9 at% Zr alloy films
Ag-27.9 at% Co-8.9 at% Zr alloy films were deposited on flexible polyimide (PI) by magnetron sputtering and annealed in argon atmosphere. Results show that many fine nanoparticles are formed on the surface of as-deposited Ag–Co–Zr alloy films. Furthermore, the average size of self-formed Ag nanopart...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-09-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785422012200 |
| _version_ | 1828166113087717376 |
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| author | Pengyan Shi Haoge Zhang Haoliang Sun Yuanjiang Lv Saibo Li Shihao Liang Guangxin Wang |
| author_facet | Pengyan Shi Haoge Zhang Haoliang Sun Yuanjiang Lv Saibo Li Shihao Liang Guangxin Wang |
| author_sort | Pengyan Shi |
| collection | DOAJ |
| description | Ag-27.9 at% Co-8.9 at% Zr alloy films were deposited on flexible polyimide (PI) by magnetron sputtering and annealed in argon atmosphere. Results show that many fine nanoparticles are formed on the surface of as-deposited Ag–Co–Zr alloy films. Furthermore, the average size of self-formed Ag nanoparticles gradually increases while the number of Ag nanoparticles decreases as alloy film thickness increases. In addition, it is worth noting that flake-like and polyhedral nanoparticles are formed spontaneously on the surface of annealed alloy films and are proved to be single crystal Ag nanoparticles. Moreover, the morphology of flake-like Ag nanoparticles is dependent on annealing temperature. In order to improve “hotspots” activity of the alloy films, a 12 nm pure Ag layer was deposited on the annealed alloy film surface to obtain Ag layer/Ag nanoparticles/Ag–Co–Zr alloy films SERS substrates which can detect 5 × 10−14 M R6G. This paper provides a potential candidate for preparation of SERS substrates with ultra-high sensitivity and stability. |
| first_indexed | 2024-04-12T01:56:15Z |
| format | Article |
| id | doaj.art-c290f4362f7f422d903c023feb6b3f9c |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-12T01:56:15Z |
| publishDate | 2022-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-c290f4362f7f422d903c023feb6b3f9c2022-12-22T03:52:48ZengElsevierJournal of Materials Research and Technology2238-78542022-09-012012551265Microstructure evolution and SERS performance of self-formed Ag nanoparticles/Ag-27.9 at% Co-8.9 at% Zr alloy filmsPengyan Shi0Haoge Zhang1Haoliang Sun2Yuanjiang Lv3Saibo Li4Shihao Liang5Guangxin Wang6School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, 471000, ChinaSchool of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, 471000, ChinaSchool of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, 471000, China; Collaborative Innovation Center of Nonferrous Metals Henan Province, Luoyang, 471000, China; Henan Provincial Key Laboratory of Non-ferrous Metal Material Science and Processing Technology, Luoyang, 471003, China; Corresponding author.School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, 471000, ChinaSchool of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, 471000, ChinaSchool of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, 471000, ChinaSchool of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, 471000, ChinaAg-27.9 at% Co-8.9 at% Zr alloy films were deposited on flexible polyimide (PI) by magnetron sputtering and annealed in argon atmosphere. Results show that many fine nanoparticles are formed on the surface of as-deposited Ag–Co–Zr alloy films. Furthermore, the average size of self-formed Ag nanoparticles gradually increases while the number of Ag nanoparticles decreases as alloy film thickness increases. In addition, it is worth noting that flake-like and polyhedral nanoparticles are formed spontaneously on the surface of annealed alloy films and are proved to be single crystal Ag nanoparticles. Moreover, the morphology of flake-like Ag nanoparticles is dependent on annealing temperature. In order to improve “hotspots” activity of the alloy films, a 12 nm pure Ag layer was deposited on the annealed alloy film surface to obtain Ag layer/Ag nanoparticles/Ag–Co–Zr alloy films SERS substrates which can detect 5 × 10−14 M R6G. This paper provides a potential candidate for preparation of SERS substrates with ultra-high sensitivity and stability.http://www.sciencedirect.com/science/article/pii/S2238785422012200Ag–Co–Zr alloy filmsAnnealingAg nanoparticlesFlexible substratesSERS performance |
| spellingShingle | Pengyan Shi Haoge Zhang Haoliang Sun Yuanjiang Lv Saibo Li Shihao Liang Guangxin Wang Microstructure evolution and SERS performance of self-formed Ag nanoparticles/Ag-27.9 at% Co-8.9 at% Zr alloy films Journal of Materials Research and Technology Ag–Co–Zr alloy films Annealing Ag nanoparticles Flexible substrates SERS performance |
| title | Microstructure evolution and SERS performance of self-formed Ag nanoparticles/Ag-27.9 at% Co-8.9 at% Zr alloy films |
| title_full | Microstructure evolution and SERS performance of self-formed Ag nanoparticles/Ag-27.9 at% Co-8.9 at% Zr alloy films |
| title_fullStr | Microstructure evolution and SERS performance of self-formed Ag nanoparticles/Ag-27.9 at% Co-8.9 at% Zr alloy films |
| title_full_unstemmed | Microstructure evolution and SERS performance of self-formed Ag nanoparticles/Ag-27.9 at% Co-8.9 at% Zr alloy films |
| title_short | Microstructure evolution and SERS performance of self-formed Ag nanoparticles/Ag-27.9 at% Co-8.9 at% Zr alloy films |
| title_sort | microstructure evolution and sers performance of self formed ag nanoparticles ag 27 9 at co 8 9 at zr alloy films |
| topic | Ag–Co–Zr alloy films Annealing Ag nanoparticles Flexible substrates SERS performance |
| url | http://www.sciencedirect.com/science/article/pii/S2238785422012200 |
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