Juan D. Albar
Adsorption of Hexacontane on Hexagonal Boron Nitride
Albar, Juan D.; Korolkov, Vladimir V.; Baldoni, Matteo; Watanabe, Kenji; Taniguchi, Takashi; Besley, Elena; Beton, Peter H.
Authors
Vladimir V. Korolkov
Matteo Baldoni
Kenji Watanabe
Takashi Taniguchi
Professor ELENA BESLEY Elena.Besley@nottingham.ac.uk
Professor of Theoretical Computational Chemistry
PETER BETON peter.beton@nottingham.ac.uk
Professor of Physics
Abstract
© 2018 American Chemical Society. We have investigated the adsorption of hexacontane (C60H122) on hexagonal boron nitride (hBN) using atomic force microscopy (AFM). The molecules can be deposited either by sublimation or from solution and form lamellar rows with dimensions of the order of 0.1-1 μm in three different rotational domains. High-resolution AFM images reveal that, similar to alkanes on graphite, the molecules are adsorbed parallel to the lattice vectors of hBN and we show using molecular mechanics that this corresponds to the lowest energy configuration. Lamellar rows with the same periodicity are observed even when several layers of hexacontane are deposited, although there is some orientational disorder in these multilayers. We also observe heat-induced modification of hexacontane, including recrystallization. We compare our results with recent X-ray studies of alkane adsorption on hBN and discuss the possible role of alkanes on steering molecular self-assembly on hBN.
Citation
Albar, J. D., Korolkov, V. V., Baldoni, M., Watanabe, K., Taniguchi, T., Besley, E., & Beton, P. H. (2018). Adsorption of Hexacontane on Hexagonal Boron Nitride. Journal of Physical Chemistry C, 122(48), 27575-27581. https://doi.org/10.1021/acs.jpcc.8b10167
| Journal Article Type | Article |
|---|---|
| Acceptance Date | Nov 13, 2018 |
| Online Publication Date | Nov 13, 2018 |
| Publication Date | Dec 6, 2018 |
| Deposit Date | Nov 30, 2018 |
| Publicly Available Date | Feb 11, 2019 |
| Journal | The Journal of Physical Chemistry C |
| Print ISSN | 1932-7447 |
| Electronic ISSN | 1932-7455 |
| Publisher | American Chemical Society |
| Peer Reviewed | Peer Reviewed |
| Volume | 122 |
| Issue | 48 |
| Pages | 27575-27581 |
| DOI | https://doi.org/10.1021/acs.jpcc.8b10167 |
| Keywords | General Energy; Physical and Theoretical Chemistry; Electronic, Optical and Magnetic Materials; Surfaces, Coatings and Films |
| Public URL | https://nottingham-repository.worktribe.com/output/1348118 |
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Adsorption of Hexacontane on Hexagonal Boron Nitride
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Publisher Licence URL
https://creativecommons.org/licenses/by/4.0/
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