Very Large-Sized Transition Metal Dichalcogenides Monolayers from Fast Exfoliation by Manual Shaking
For two-dimensional transition metal dichalcogenides (TMD) materials, achieving large size with high quality to provide a basis for the next generation of electronic device geometries has been a long-term need. Here, we demonstrate that, by only manual shaking within several seconds, very large-sized TMD monolayers that cover a wide range of group IVB-VIB transition metal sulfides and selenides can be efficiently harvested from intercalated single-crystal counterparts. Taking TaS2 as examples, monolayers up to unprecedented size (>100 μm) are obtained while maintaining high crystalline quality and the phase structure of the starting materials. Furthermore, benefiting from the gentle manual shaking, we unraveled the atomic-level correlation between the intercalated lattice-strain effects and exfoliated nanosheets, and that strong tensile strain usually led to very large sizes. This work helps to deepen the understanding of exfoliation mechanism and provides a powerful tool for producing large-sized and high-quality TMD nanosheets appealing for further applications.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2017 |
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| Erschienen: |
2017 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:139 |
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| Enthalten in: |
Journal of the American Chemical Society - 139(2017), 26 vom: 05. Juli, Seite 9019-9025 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Peng, Jing [VerfasserIn] |
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| Links: |
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| Themen: |
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| Anmerkungen: |
Date Completed 15.05.2018 Date Revised 15.05.2018 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1021/jacs.7b04332 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM272834009 |
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| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a For two-dimensional transition metal dichalcogenides (TMD) materials, achieving large size with high quality to provide a basis for the next generation of electronic device geometries has been a long-term need. Here, we demonstrate that, by only manual shaking within several seconds, very large-sized TMD monolayers that cover a wide range of group IVB-VIB transition metal sulfides and selenides can be efficiently harvested from intercalated single-crystal counterparts. Taking TaS2 as examples, monolayers up to unprecedented size (>100 μm) are obtained while maintaining high crystalline quality and the phase structure of the starting materials. Furthermore, benefiting from the gentle manual shaking, we unraveled the atomic-level correlation between the intercalated lattice-strain effects and exfoliated nanosheets, and that strong tensile strain usually led to very large sizes. This work helps to deepen the understanding of exfoliation mechanism and provides a powerful tool for producing large-sized and high-quality TMD nanosheets appealing for further applications | ||
| 650 | 4 | |a Journal Article | |
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| 700 | 1 | |a Wu, Jiajing |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Xiaoting |e verfasserin |4 aut | |
| 700 | 1 | |a Zhou, Yuan |e verfasserin |4 aut | |
| 700 | 1 | |a Yu, Zhi |e verfasserin |4 aut | |
| 700 | 1 | |a Guo, Yuqiao |e verfasserin |4 aut | |
| 700 | 1 | |a Wu, Junchi |e verfasserin |4 aut | |
| 700 | 1 | |a Lin, Yue |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Zejun |e verfasserin |4 aut | |
| 700 | 1 | |a Wu, Xiaojun |e verfasserin |4 aut | |
| 700 | 1 | |a Wu, Changzheng |e verfasserin |4 aut | |
| 700 | 1 | |a Xie, Yi |e verfasserin |4 aut | |
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