Synthesis method and correlation between compositional, vibrational and electrical properties in graphene oxide fibers

The synthesis method and correlation between compositional, vibrational, and electrical properties in graphene oxide fibers (GOF), synthesized from rice husk by pyrolysis method, are presented here. The variation of carbonization temperature (T_CA) influences oxides concentration (OC). GOF samples exhibits morphology of fibers, compositional response of oxides tuned by T_CA with presence of hydroxyl and epoxy bridges, vibrational characteristics typical of graphene oxide multilayers, and electrical behavior that scale with OC. The correlation between OC and physical properties suggests that by controlling the OC in GOF, it was possible to modify vibrational and electrical properties of great interest in fabrication of advanced electronics.