Graphene-Titanium Interfaces from Molecular Dynamics Simulations

Alexandre F. Fonseca, Tao Liang, Difan Zhang, Kamal Choudhary, Simon R. Phillpot, Susan B. Sinnott

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

Unraveling the physical and chemical properties of graphene-metal contacts is a key step toward the development of graphitic electronic nanodevices. Although many studies have revealed the way that various metals interact with graphene, few have described the structure and behavior of large pieces of graphene-metal nanostructures under different conditions. Here, we present the first classical molecular dynamics study of graphene-titanium (G-Ti) structures, with and without substrates. Physical and chemical properties of equilibrium structures of G-Ti interfaces with different amounts of titanium coverage are investigated. Adhesion of Ti films on graphene is shown to be enhanced by the vacancies in graphene or the electrostatic influence of substrates. The dynamics of pristine G-Ti structures at different temperatures on planar and nonplanar substrates are investigated, and the results show that G-Ti interfaces are thermally stable, that is, not prone to any reaction toward the formation of titanium carbide.

Original languageEnglish (US)
Pages (from-to)33288-33297
Number of pages10
JournalACS Applied Materials and Interfaces
Volume9
Issue number38
DOIs
StatePublished - Sep 27 2017

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

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