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Probing Quantum Transport in CVD Graphene (SP Workshop)

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If you have a question about this talk, please contact Teri Bartlett.

Although mechanical exfoliation is a straightforward way to isolate graphene flake, the sample obtained is usually small and unlikely to be employed for mass production. In addition, the number of layers of graphene flakes is uncontrollable and searching for the monolayer or few layer graphene among numerous graphite fractions is time-consuming. Therefore, chemical vapour deposition (CVD)-growth graphene attracts researchers because of the capability of producing large area samples with good quality as well as the short synthesis time. In this talk the preliminary results of measurements characterising the electrical properties of CVD monolayer and bilayer graphene as well as the magnetotransport measurement of bilayer graphene is presented. The weak localization (WL) was observed both on the AB-stacked and twisted-stacked bilayer samples in this study and the scattering lengths extracted from the fitting of WL curve are discussed. The aim is to characterize the CVD graphene sample we obtained and optimize the fabrication process for future graphene devices.

This talk is part of the Semiconductor Physics Group Seminars series.

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