The Library
Van der Waals pressure and its effect on trapped interlayer molecules
Tools
Vasu, K. S., Prestat, E., Abraham, J., Dixon, J. M., Kashtiban, Reza J., Beheshtian, J., Sloan, Jeremy, Carbone, P., Neek-Amal, M., Haigh, S. J., Geim, A. K. and Nair, R. R. (2016) Van der Waals pressure and its effect on trapped interlayer molecules. Nature Communications, 7 (1). 12168. doi:10.1038/ncomms12168 ISSN 2041-1723.
|
PDF
WRAP-Van-der-Waals-pressure-effect-trapped-interlayer-molecules-Sloan-2016.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution 4.0. Download (686Kb) | Preview |
Official URL: http://dx.doi.org/10.1038/ncomms12168
Abstract
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.
Item Type: | Journal Article | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Subjects: | Q Science > QC Physics | |||||||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | |||||||||||||||
Library of Congress Subject Headings (LCSH): | Van der Waals forces, Quasimolecules , Raman spectroscopy | |||||||||||||||
Journal or Publication Title: | Nature Communications | |||||||||||||||
Publisher: | Nature Publishing Group | |||||||||||||||
ISSN: | 2041-1723 | |||||||||||||||
Official Date: | 7 July 2016 | |||||||||||||||
Dates: |
|
|||||||||||||||
Volume: | 7 | |||||||||||||||
Number: | 1 | |||||||||||||||
Article Number: | 12168 | |||||||||||||||
DOI: | 10.1038/ncomms12168 | |||||||||||||||
Status: | Peer Reviewed | |||||||||||||||
Publication Status: | Published | |||||||||||||||
Access rights to Published version: | Open Access (Creative Commons) | |||||||||||||||
Date of first compliant deposit: | 11 February 2020 | |||||||||||||||
Date of first compliant Open Access: | 24 February 2020 | |||||||||||||||
RIOXX Funder/Project Grant: |
|
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |
Downloads
Downloads per month over past year