This material was first isolated in 2003 and immediately became a potential candidate for electronic applications. Graphene is a two-dimensional (2D) carbon-based material, which has recently attracted particular attention due to its specific electronic structure, which gives it unusual electronic properties such as the anomalous quantum Hall effect and startling high carrier mobility at relatively high charge carrier concentrations. Thus, detailed analysis of the ellipsometric data provides a unique tool for qualitative and also quantitative description of the optical properties of GO thin films for electronic applications. Ellipsometric spectra were analyzed according to the dispersion model and the influence of the reduction of GO on optical constants is discussed. ![]() The thicknesses of the layers were determined by a mechanical profilometer and used as an input parameter for optical modeling. Spectroscopic ellipsometry was used to characterize the optical response of the GO layer and its reduced form (rGO, obtainable, for example, by reduction of prepared layers by either annealing, UV radiation, or chemical reduction) in the visible range. ![]() Due to its unique optical and electrical properties, GO can be used as, for example, a transparent and flexible electrode material in organic and printed electronics. The article is focused on the study of the optical properties of inkjet-printed graphene oxide (GO) layers by spectroscopic ellipsometry.
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