what are the optimal constants (n, k) for graphene oxide thin film that prepared from a dispersion solution of Graphene oxide power which is prepared by Improved Hummer Method?
I've studied the optical constants for GO for three different thickness and I realised that all of them has almost n but they have different values for k, so is it reasonable because of thickness of film itself?
Dea colleague Albert Kamal,
Have a nice time and good day.
The attached file contains both n,k of GO.
I wish this is useful and help you.
Yous
A. El-Denglawey
Dear sir
The k dependent on the absorption coefficient and wavelength in principle, so, I think, the changed in k due to changes in absorption which is changed as result of different thicknesses, but the same values of n, that due to change in reflection of films, because n dependent on the k, and R
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