▎ 摘　　要

We investigate transport through bulk-disordered graphene nanoribbons and nanoconstrictions. Employing a modular recursive Green's function algorithm, we study devices of realistic size (up to 100.000 nm(2)). By Fourier transforming the scattered wave we disentangle inter-valley scattering between the two Dirac cones of graphene and intra-valley scattering on a single cone. We find that different types of defects leave characteristic signatures on transport properties which we can describe with a simplified scattering model. A quantitative comparison with recent experimental data is performed which yields insights into the disorder concentration in realistic samples. (C) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim