International Conference PhysicA.SPb/2023

Organic macromolecule on free-standing and epitaxial graphene: HOMO-LUMO model

S. Yu. Davydov, A. A. Lebedev

Ioffe Institute, St. Petersburg, Russia

Abstract: A two-level model of an organic macromolecule is proposed, initially containing completely filled (HOMO) and empty (LUMO) levels. The interaction of these levels with free-standing and epitaxial graphene is considered within the framework of the standard adsorption approach. sp- and d-metal and a semiconductor (dielectric) are considered as a substrate. In the latter case, these are silicon carbide polytypes. Estimates have shown that the maximum transition of electrons to graphene takes place for the 3C-SiC substrate.

Keywords: a two-level model of a macromolecule, single-layer graphene, metal and semiconductor substrates.

Received: 24.04.2023
Revised: 17.08.2023
Accepted: 30.10.2023

DOI: 10.61011/FTT.2023.12.56719.4910k

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