Optical measurements of selected properties of nanocomposite layers with graphene and carbon nanotubes fillers

Polymer substrates which are covered with a thin layer of graphene nanoplatelets or carbon nanotubes have a big potential for modern engineering, especially in organic electronics. The main advantage of those materials is transparency in the visible part of the electromagnetic spectrum. This property creates a possibility of using these materials to produce electrodes in flexible screens and light sources. It is necessary to know the transmission characteristics of these materials to assess their usefulness in optoelectronics. In the article authors present the results of the conducted research on the transmittance characteristics of different samples. The samples contained different deposited substances. They had various diameters of the graphene nanoplatelets, one group contained carbon nanotubes. Samples had 50 or 100 layers. The authors examine the influence of these parameters on ink transmittance and ink transmittance uniformity. These analyses are a base for future research on flexible carbon electrodes, especially for applying them in production of flexible organic displays and light sources.