Graphyne on metallic surfaces: a density functional theory study (CROSBI ID 217378)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Lazić, Predrag ; Crljen, Željko
engleski
Graphyne on metallic surfaces: a density functional theory study
We showed how a structural modification of graphene, which gives a carbon allotrope graphyne, can induce an energy gap at the K point of the Brillouin zone. Upon adsorption on metallic surfaces, the same mechanism is responsible for the further modification of the energy gap which occurs via the charge transfer mechanism. We performed the calculation based on the density functional theory with the novel non-local vdW-DF correlation of the adsorption of graphyne on Cu(111), Ni(111) and Co(0001) surfaces and showed the dependence of the gap change on the charge transfer in the system. The binding of graphyne appears to be stronger than of graphene on the same surfaces.
density functional calculations ; graphyne ; graphene ; nanostructure
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Podaci o izdanju
91 (12)
2015.
125423
5
objavljeno
1098-0121
1550-235X
10.1103/PhysRevB.91.125423