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Adsorption of Hexacontane on Hexagonal Boron Nitride

Albar, Juan D.; Korolkov, Vladimir V.; Baldoni, Matteo; Watanabe, Kenji; Taniguchi, Takashi; Besley, Elena; Beton, Peter H.


Juan D. Albar

Vladimir V. Korolkov

Matteo Baldoni

Kenji Watanabe

Takashi Taniguchi

Professor of Physics


© 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.


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.

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
Keywords General Energy; Physical and Theoretical Chemistry; Electronic, Optical and Magnetic Materials; Surfaces, Coatings and Films
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