Temperature-dependent electrical property transition of graphene oxide paper

摘要: Reduction of graphene oxide is primarily important because different reduction methods may result in with totally properties. For systematically exploring the oxide, studies temperature-dependent electrical properties (GO) are urgently required. In this work, for first time, broadband dielectric spectroscopy was used to carry out an situ investigation on transition GO paper from -40 150 °C. The results clearly reveal a very interesting four-stage increasing temperature: insulator below 10 °C (stage 1), semiconductor at between and 90 2), 100 3), again above 4). Subsequently, mechanism discussed combination detailed properties, microstructure thermogravimetric analyses. It suggested that electronic closely associated ion mobility, water molecules removal paper. Most importantly, present work demonstrates starts