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Citation - WoS: 72
Citation - Scopus: 80
Electronic, Phononic, and Thermoelectric Properties of Graphyne Sheets
(American Institute of Physics, 2014) Sevinçli, Haldun; Sevik, Cem
Electron, phonon, and thermoelectric transport properties of α-, β-, γ-, and 6,6,12-graphyne sheets are compared and contrasted with those of graphene. α-, β-, and 6,6,12-graphynes, with direction dependent Dirac dispersions, have higher electronic transmittance than graphene. γ-graphyne also attains better electrical conduction than graphene except at its band gap. Vibrationally, graphene conducts heat much more efficiently than graphynes, a behavior beyond an atomic density differences explanation. Seebeck coefficients of the considered Dirac materials are similar but thermoelectric power factors decrease with increasing effective speeds of light. γ-graphyne yields the highest thermoelectric efficiency with a thermoelectric figure of merit as high as ZT-=-0.45, almost an order of magnitude higher than that of graphene.

Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection