Abstract:
An increase in the thermodesorption probability under deformation wave, i.e., acoustodesorption, was estimated for alkali metal and halogen atom adsorption on single-layer graphene. To this end, first, a simple analytical expression for the adsorption energy is proposed. Second, using the previously developed adsorption M-model, the effect of the time-variable hydrostatic compression–tension of a graphene sheet on the adatom charge and adsorption energy is considered. It is shown that the derivative of the adsorption energy with respect to the strain is an order of magnitude higher for halogens than for alkali metals, and the desorbed atom flux is maximum for iodine desorption. To study the dependence of the adatom charge on the strain, the low-energy approximation (LEA) is also used. In this case, LEA estimates for alkali metals show satisfactory agreement with the results of the M-model. Within the LEA, it is demonstrated that uniaxial and hydrostatic deformations lead to order-of-magnitude identical effects.
\Bibitem{Dav17}
\by S.~Yu.~Davydov
\paper Acoustodesorption of alkali metals and halogens from single-layer graphene: Simple estimates
\jour Fizika Tverdogo Tela
\yr 2017
\vol 59
\issue 4
\pages 825--830
\mathnet{http://mi.mathnet.ru/ftt9627}
\crossref{https://doi.org/10.21883/FTT.2017.04.44290.356}
\elib{https://elibrary.ru/item.asp?id=29257201}
\transl
\jour Phys. Solid State
\yr 2017
\vol 59
\issue 4
\pages 845--850
\crossref{https://doi.org/10.1134/S1063783417040059}
Linking options:
https://www.mathnet.ru/eng/ftt9627
https://www.mathnet.ru/eng/ftt/v59/i4/p825
This publication is cited in the following 3 articles:
I. Yu. Dolinskii, K. S. Grishakov, V. S. Prudkovskii, “Effect of a nitrogen doping and a mechanical stress on the adsorption capacity of graphdiene”, Phys. Solid State, 61:2 (2019), 274–278
S. Yu. Davydov, “Evaluation of constants of electron–phonon coupling between gas molecules and graphene”, Tech. Phys. Lett., 44:2 (2018), 105–107
I. Yu. Dolinskii, K. P. Katin, K. S. Grishakov, V. S. Prudkovskii, N. I. Kargin, M. M. Maslov, “Influence of mechanical stretching on adsorption properties of nitrogen-doped graphene”, Phys. Solid State, 60:4 (2018), 821–825