Dip Coating, LB and LS methods have been shown to be excellentmethods for controlled preparation of thin films graphene and graphene oxide. The methods offer great amount of control for depositing dispersed SG and SGO produced by the liquid exfolia-tion methods. As the liquid exfoliation methods are recognized as some of the most potential methods for producing graphene in industrial scale, these deposition methods are of great impor-tance in graphene research.We introduced more thoroughly two powerful optical methods for characterizing graphene films before and after deposition, PM-IRRAS and SPR. With the KSV PMI 550 it was possible to record detailed IR spectra of floating and deposited layers to determine the chemical composition. The SPR Navi 200 was capable of characterizing the thicknesses and the complex refractive indices of the deposited layers. It was possible to distinguish single sheet and aggregated graphene from each other.
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