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Optical Identification of Few-Layer Graphene Obtained by Friction (1411.6759v1)
Published 25 Nov 2014 in cond-mat.mtrl-sci
Abstract: A friction based method is proposed for obtaining graphite layers. Freestanding thin structures of graphite containing several layers of graphene are obtained by rubbing a graphite rod on the surfaces of NaCl substrate and then dissolving the substrate in water. An optically transparent and mechanically strong lamina of few-layer graphene is found in the obtained structures.