Self-Organized Graphene/Graphite Structures Obtained Directly on Paper

2014/02/17 by A. R. Mailian, Mailian, A. R., G. Sh. Shmavonyan +3
Physics and Astronomy · #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #cond-mat.mtrl-sci

paper · pdf · doi:10.48550/arxiv.1402.3929

6 figures

arxiv created 2014/02/17 · arxiv updated 2014/02/18

Abstract

We experimentally investigated the properties of graphite layers produced by an easy and non-conventional method of repeatedly rubbing conventional random stacked graphite bulk against insulating and semiconductor substrates. The patterned structure composed of rubbed-off and transferred layers exhibits properties of a solid-state material with through-thickness anisotropy of carrier mobility reaching ~10³ cm²/V*sec at the surface. The surface of the structure demonstrates quality of more ordered and optically oriented mono or few layer graphene shaped by self-organization process due to friction. Enhanced photoconductivity originating from modification of continuous and linear valence and conduction bands caused by interaction between 4 graphene layers made possible obtaining Raman spectra at near infrared excitation wavelength of 976 nm.

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