The effect of temperature on the properties of grapheme oxide langmuir films
Year: 2017
Authors: Seliverstova, E.; Ibrayev, N.; Dzhanabekova, R.; Gladkova, V.
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 degrees C. Increasing the temperature of the films over 200 degrees 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 spa clusters and its transition in sp(2)-bonded carbon clusters.
