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Van der Waals pressure and its effect on trapped interlayer molecules
Open accessAbstract
Van der Waals assembly of two-dimensional crystals continue attract intense interest due to the prospect of designing novel materials with on-demand properties. One of the unique features of this technology is the possibility of trapping molecules between two-dimensional crystals. The trapped molecules are predicted to experience pressures as high as 1 GPa. Here we report measurements of this interfacial pressure by capturing pressure-sensitive molecules and studying their structural and conformational changes. Pressures of 1.2±0.3 GPa are found using Raman spectrometry for molecular layers of 1-nm in thickness. We further show that this pressure can induce chemical reactions, and several trapped salts are found to react with water at room temperature, leading to two-dimensional crystals of the corresponding oxides. This pressure and its effect should be taken into account in studies of van der Waals heterostructures and can also be exploited to modify materials confined at the atomic interfaces.
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Cites
Graphene-enabled electron microscopy and correlated super-resolution microscopy of wet cells
Wojcik, M., Hauser, M., Li, W., Moon, S., & Xu, K. (2015) · Nature Communications · doi:10.1038/ncomms8384 · Cited by 133
Cited by
Strain Engineering of 2D Materials: Issues and Opportunities at the Interface
Dai, Z., Liu, L., & Zhang, Z. (2019) · Advanced Materials · doi:10.1002/adma.201805417 · Cited by 802
Synthesis, structure and applications of graphene-based 2D heterostructures
Solís-Fernández, P., Bissett, M., & Ago, H. (2017) · Chemical Society Reviews · doi:10.1039/c7cs00160f · Cited by 371
Metadata
- Authors
- Vasu, K. S., Prestat, E., Abraham, J., Dix, J., Kashtiban, R. J., Beheshtian, J., Sloan, J., Carbone, P., Neek-Amal, M., Haigh, S. J., Geim, A. K., & Nair, R. R.
- Venue
- Nature Communications
- Published
- 2016-07-07
- Volume
- 7
- Issue
- 1
- Pages
- 12168-12168
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W2406017546
- Cited by
- 196
- References
- 1
- FWCI
- 7.42
- Type
- journal article
- Language
- en
- Open access
- gold
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- Vasu, K. S., Prestat, E., Abraham, J., Dix, J., Kashtiban, R. J., Beheshtian, J., Sloan, J., Carbone, P., Neek-Amal, M., Haigh, S. J., Geim, A. K., & Nair, R. R. (2016). Van der Waals pressure and its effect on trapped interlayer molecules. Nature Communications. https://doi.org/10.1038/ncomms12168
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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