Structural evolution of PVP@Ag nanowires induced by focused electron beam irradiation: The passivation effect of PVP
To explore the passivation effect of polyvinylpyrrolidone (PVP) on Ag nanowires (NWs), the structural evolution of PVP@Ag NWs was in situ induced under focused electron beam (e-beam) irradiation using transmission electron microscopy. Notably, interesting phenomena, including multiple necking and ax...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-03-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424001972 |
| _version_ | 1827310801563680768 |
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| author | Chi Hao Jiangbin Su Peng Pan Litao Sun Zuming He Bin Tang |
| author_facet | Chi Hao Jiangbin Su Peng Pan Litao Sun Zuming He Bin Tang |
| author_sort | Chi Hao |
| collection | DOAJ |
| description | To explore the passivation effect of polyvinylpyrrolidone (PVP) on Ag nanowires (NWs), the structural evolution of PVP@Ag NWs was in situ induced under focused electron beam (e-beam) irradiation using transmission electron microscopy. Notably, interesting phenomena, including multiple necking and axial elongation, were observed at room temperature. By establishing a kinetic relationship, the passivation effect of PVP on the radial shrinkage of Ag NW was confirmed, with a determined surface energy index (b) of 0.2. The presence of PVP not only weakened the surface nanocurvature effect of Ag NW but also retarded the athermal activation effect of energetic e-beam irradiation. By taking into account two new concepts of nanocurvature effect and athermal activation effect, the structure evolution of PVP@Ag NW was well restored by COMSOL simulation. Additionally, the radial shrinkage of Ag NWs with and without PVP coating was compared extensively. The simulation vividly illustrated the evaporation and diffusion processes of atoms, showcasing how PVP effectively mitigates material loss. |
| first_indexed | 2024-03-08T09:04:36Z |
| format | Article |
| id | doaj.art-8f7c7344276643e98761e3805910206e |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-24T20:05:47Z |
| publishDate | 2024-03-01 |
| publisher | Elsevier |
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| series | Journal of Materials Research and Technology |
| spelling | doaj.art-8f7c7344276643e98761e3805910206e2024-03-24T06:57:35ZengElsevierJournal of Materials Research and Technology2238-78542024-03-012914671475Structural evolution of PVP@Ag nanowires induced by focused electron beam irradiation: The passivation effect of PVPChi Hao0Jiangbin Su1Peng Pan2Litao Sun3Zuming He4Bin Tang5Experiment Center of Electronic Science and Technology, School of Microelectronics and Control Engineering, Changzhou University, Changzhou, 213159, People's Republic of ChinaExperiment Center of Electronic Science and Technology, School of Microelectronics and Control Engineering, Changzhou University, Changzhou, 213159, People's Republic of China; SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing, 210096, People's Republic of China; Corresponding author. Experiment Center of Electronic Science and Technology, School of Microelectronics and Control Engineering, Changzhou University, Changzhou 213159, People's Republic of China.Experiment Center of Electronic Science and Technology, School of Microelectronics and Control Engineering, Changzhou University, Changzhou, 213159, People's Republic of ChinaSEU-FEI Nano-Pico Center, Key Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing, 210096, People's Republic of China; Corresponding author. SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing, 210096, People's Republic of China.Experiment Center of Electronic Science and Technology, School of Microelectronics and Control Engineering, Changzhou University, Changzhou, 213159, People's Republic of ChinaExperiment Center of Electronic Science and Technology, School of Microelectronics and Control Engineering, Changzhou University, Changzhou, 213159, People's Republic of ChinaTo explore the passivation effect of polyvinylpyrrolidone (PVP) on Ag nanowires (NWs), the structural evolution of PVP@Ag NWs was in situ induced under focused electron beam (e-beam) irradiation using transmission electron microscopy. Notably, interesting phenomena, including multiple necking and axial elongation, were observed at room temperature. By establishing a kinetic relationship, the passivation effect of PVP on the radial shrinkage of Ag NW was confirmed, with a determined surface energy index (b) of 0.2. The presence of PVP not only weakened the surface nanocurvature effect of Ag NW but also retarded the athermal activation effect of energetic e-beam irradiation. By taking into account two new concepts of nanocurvature effect and athermal activation effect, the structure evolution of PVP@Ag NW was well restored by COMSOL simulation. Additionally, the radial shrinkage of Ag NWs with and without PVP coating was compared extensively. The simulation vividly illustrated the evaporation and diffusion processes of atoms, showcasing how PVP effectively mitigates material loss.http://www.sciencedirect.com/science/article/pii/S2238785424001972PVP@Ag nanowiresStructural evolutionPassivationNanocurvature effectAthermal activation effectElectron beam irradiation |
| spellingShingle | Chi Hao Jiangbin Su Peng Pan Litao Sun Zuming He Bin Tang Structural evolution of PVP@Ag nanowires induced by focused electron beam irradiation: The passivation effect of PVP Journal of Materials Research and Technology PVP@Ag nanowires Structural evolution Passivation Nanocurvature effect Athermal activation effect Electron beam irradiation |
| title | Structural evolution of PVP@Ag nanowires induced by focused electron beam irradiation: The passivation effect of PVP |
| title_full | Structural evolution of PVP@Ag nanowires induced by focused electron beam irradiation: The passivation effect of PVP |
| title_fullStr | Structural evolution of PVP@Ag nanowires induced by focused electron beam irradiation: The passivation effect of PVP |
| title_full_unstemmed | Structural evolution of PVP@Ag nanowires induced by focused electron beam irradiation: The passivation effect of PVP |
| title_short | Structural evolution of PVP@Ag nanowires induced by focused electron beam irradiation: The passivation effect of PVP |
| title_sort | structural evolution of pvp ag nanowires induced by focused electron beam irradiation the passivation effect of pvp |
| topic | PVP@Ag nanowires Structural evolution Passivation Nanocurvature effect Athermal activation effect Electron beam irradiation |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424001972 |
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