Transport properties of bilayer graphene nanoribbons with hydrogen adatoms

Abstract

The transport characteristics of bilayer graphene nanoribbons with hydrogen adatoms in an external static electric field is studied. The adsorption of hydrogen atoms on the surface of bilayer graphene ribbons is considered within the single-impurity periodic Anderson model. The transport coefficients of impurity-doped bilayer graphene ribbons are simulated in the relaxation time approximation. At a constant concentration of hydrogen adatoms, a nonlinear dependence of the transport coefficients on the static electric field strength has been revealed. It is found that the electrical conductivity and the diffusion coefficient of electrons in bilayer graphene ribbons decrease with increasing concentration of hydrogen adatoms.