Mechanical behavior of monolayer MoS2 films with arrayed dislocation defects
Compared with single and randomly distributed defects, arrayed defects exist widely in the film structure and can be designed artificially to achieve various specific functions. However, the mechanical behavior of transition metal dihalides with dislocation array defects is unclear; this limits thei...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-06-01
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| Series: | Results in Physics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379723003078 |
| _version_ | 1827936163917201408 |
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| author | Pengsen Zhao Jing Wang Zhiqin Wang Meng Nie |
| author_facet | Pengsen Zhao Jing Wang Zhiqin Wang Meng Nie |
| author_sort | Pengsen Zhao |
| collection | DOAJ |
| description | Compared with single and randomly distributed defects, arrayed defects exist widely in the film structure and can be designed artificially to achieve various specific functions. However, the mechanical behavior of transition metal dihalides with dislocation array defects is unclear; this limits their application in new flexible nanodevices. In this study, the strength and fracture properties of monolayer MoS2 films containing 5|7 (S5|7 and Mo5|7) dislocation defects under uniaxial tension were studied by molecular dynamics simulation. The results show that the number of defects, adjacent spacing, and alignment angle affect the critical strain and tensile strength of the monolayer MoS2 films. These results provide a basis for further understanding the mechanical behavior of monolayer MoS2 thin films and provide a theoretical reference for the application of nano-electronic devices based on MoS2. |
| first_indexed | 2024-03-13T08:06:13Z |
| format | Article |
| id | doaj.art-5683c40cce234d5db28b6414e1efd5fb |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-03-13T08:06:13Z |
| publishDate | 2023-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-5683c40cce234d5db28b6414e1efd5fb2023-06-01T04:35:51ZengElsevierResults in Physics2211-37972023-06-0149106514Mechanical behavior of monolayer MoS2 films with arrayed dislocation defectsPengsen Zhao0Jing Wang1Zhiqin Wang2Meng Nie3Xinjiang Key Laboratory of Solid State Physics and Devices, College of Physics Science and Technology, Xinjiang University, Urumqi 830046, PR ChinaXinjiang Key Laboratory of Solid State Physics and Devices, College of Physics Science and Technology, Xinjiang University, Urumqi 830046, PR China; Corresponding author.Xinjiang Key Laboratory of Solid State Physics and Devices, College of Physics Science and Technology, Xinjiang University, Urumqi 830046, PR ChinaKey Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing 210096, PR ChinaCompared with single and randomly distributed defects, arrayed defects exist widely in the film structure and can be designed artificially to achieve various specific functions. However, the mechanical behavior of transition metal dihalides with dislocation array defects is unclear; this limits their application in new flexible nanodevices. In this study, the strength and fracture properties of monolayer MoS2 films containing 5|7 (S5|7 and Mo5|7) dislocation defects under uniaxial tension were studied by molecular dynamics simulation. The results show that the number of defects, adjacent spacing, and alignment angle affect the critical strain and tensile strength of the monolayer MoS2 films. These results provide a basis for further understanding the mechanical behavior of monolayer MoS2 thin films and provide a theoretical reference for the application of nano-electronic devices based on MoS2.http://www.sciencedirect.com/science/article/pii/S2211379723003078MoS2Molecular dynamicsDislocation defect |
| spellingShingle | Pengsen Zhao Jing Wang Zhiqin Wang Meng Nie Mechanical behavior of monolayer MoS2 films with arrayed dislocation defects Results in Physics MoS2 Molecular dynamics Dislocation defect |
| title | Mechanical behavior of monolayer MoS2 films with arrayed dislocation defects |
| title_full | Mechanical behavior of monolayer MoS2 films with arrayed dislocation defects |
| title_fullStr | Mechanical behavior of monolayer MoS2 films with arrayed dislocation defects |
| title_full_unstemmed | Mechanical behavior of monolayer MoS2 films with arrayed dislocation defects |
| title_short | Mechanical behavior of monolayer MoS2 films with arrayed dislocation defects |
| title_sort | mechanical behavior of monolayer mos2 films with arrayed dislocation defects |
| topic | MoS2 Molecular dynamics Dislocation defect |
| url | http://www.sciencedirect.com/science/article/pii/S2211379723003078 |
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