In this paper, the analysis of charge injection\r\nfrommetaltoacontactedgraphenenanoribbon(GNR)is\r\ndevelopedbymeansofascatteringmatrixapproach.The\r\ncharge transport, described by the SchrÃ?¶dinger equation\r\nin the 2D domain of theGNRs, is solved, together with\r\nthe 3D Poisson equation for the potential distribution.\r\nVarying theworkfunction of the metal contacted to the\r\nGNR,altersthesocalledââ?¬Å?metaldopingââ?¬Â,i.e.,theamount\r\nof charge in the GNR. As easily expected, this in turn\r\naffectstheIVcharacteristicofaGNRchannelacrosstwo\r\nelectrodes. Interesting effects appear as the contribution\r\nofGNRsubbandisconsideredandincludedintheself\r\nconsistentcalculation.
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