The effect of temperature on the properties of grapheme oxide langmuir films

[摘要] The effect of temperature on the optical properties and structure of graphene oxide langmuir films was studied. It is shown that the decrease of optical density of the films in the absorption band of graphene oxide take place when the film was heated above 100 °C. Increasing the temperature of the films over 200 °C leads to the growth of its optical density. As it was shown with the scanning electron microscopy the structure of grapheme oxide films annealed at different temperatures is practically unchanged. Measured the Raman spectra show that in the films there are a partial reducing of disordered and high-defective graphene oxide LB films occurs under heat treatment. This process accompanied by ordering of amorphous sp3clusters and its transition in sp2-bonded carbon clusters.

[发布机构] Institute of Molecular Nanophotonics, Karaganda; 100028, Kazakhstan^1

[效力级别] 物理学 [学科分类] 材料科学（综合）

[关键词] Effect of temperature