Features of the Temperature Dependence of Graphene Oxide Resistivity

Аннотация

The Raman spectra and the temperature dependence of the resistivity of graphene oxide grown upon continuous heating and cooling on a glass substrate is studied in air in the temperature interval of 300–550 K. It is established that the intensity of the D-peak falls relative to the G-peak, the maximum of which shifts toward lower frequencies in Raman spectra. Partial removal of oxygen-containing functional groups is accompanied by a reduction in resistivity from 5.6 × 10⁹ to 5.4 × 10⁹ Ω. In the temperature intervals of 300–350 K and 300–375 K, the resistivity is constant upon graphene oxide heating and cooling, respectively.