Technical Physics Letters

, Volume 44, Issue 2, pp 105–107 | Cite as

Evaluation of Constants of Electron–Phonon Coupling between Gas Molecules and Graphene

Article

Abstract

The adsorption of CO, NO, NO2, Н2О, and NH3 molecules on ideal graphene and graphene doped with aluminum is analyzed using simple models. The constants of electron–phonon coupling are evaluated with the Lennard-Jones 6–12 potential for ideal graphene and the 2–4 potential for doped graphene. It is demonstrated that the dimensionless electron–phonon-coupling constant for ideal graphene is ζ ≫ 1, while ζ ~ 1 corresponds to graphene doped with aluminum. Ways to use both types of graphene as a resistive gas sensor are discussed.

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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  1. 1.Ioffe Physical Technical InstituteRussian Academy of SciencesSt. PetersburgRussia
  2. 2.ITMO UniversitySt. PetersburgRussia

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