Otro
Electronic transport in patterned graphene nanoroads
Registro en:
Nanotechnology. Bristol: Iop Publishing Ltd, v. 24, n. 49, 5 p., 2013.
0957-4484
10.1088/0957-4484/24/49/495201
WOS:000328215300004
0000-0001-8874-6947
Autor
Almeida, J. M. de
Rocha, A. R.
Singh, Abhshek K.
Fazzio, A.
Silva, Antonio J. R. da
Resumen
Graphane, hydrogenated graphene, can be patterned into electronic devices by selectively removing hydrogen atoms. The most simple of such devices is the so-called nanoroad, analogous to the graphene nanoribbon, where confinement-and the opening of a gap-is obtained without the need for breaking the carbon bonds. In this work we address the electronic transport properties of such systems considering different hydrogen impurities within the conduction channel. We show, using a combination of density functional theory and non-equilibrium Green's functions, that hydrogen leads to significant changes in the transport properties and in some cases to current polarization. Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)