Graphene transfer methods for high quality graphene field effect transistors

This bachelor thesis is focused on the influence of different graphene transfer methods on its quality. Graphene layers were grown by Chemical Vapour Deposition (CVD) method. The quality characterization of subsequently transfered graphene is based on the measurement of charge carrier mobility which has been performed on the field-effect transistors fabricated by transferring of graphene layers onto Si/SiO$_2$ surface. Chemical etching and electrolytic delamination are the transfer methods that are being compared in this thesis. Results of the measurements showed that graphene layers transferred by electrolytic delamination exhibit approximately four times higher charge carrier mobility than those transferred by the chemical etching method