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Electrical properties of covalently functionalized graphene

Department of Physics, Portland State University, 1719 SW 10th Ave., Portland, OR 97201, USA

We have employed first-principle calculations to study transformation of graphene’s electronic structure under functionalization by covalent bonds with di erent atomic and molecular groups - epoxies, amines, PFPA. It is shown that this functionalization leads to an opening in the graphene’s band gap on order of tens meV, but also leads to reduction of electrical conductivity. We also discuss the influence of charge exchange between the functionalizing molecule and graphene’s conjugated electrons on electron transport properties.
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Keywords graphene; functionalization; DFT; PFPA; amines; epoxy

Citation: Paul Plachinda, David Evans, Raj Solanki. Electrical properties of covalently functionalized graphene. AIMS Materials Science, 2017, 4(2): 340-362. doi: 10.3934/matersci.2017.2.340


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