Thermoelectric Properties of Pristine and Doped Graphene Nanosheets and Graphene Nanoribbons: Part II

Abstract

Electrical conductivity (r) decreases with an increase in % doping for both armchair and zigzag nanoribbons. rgraphene is highest at ±kBT, whereas it reduces to zero at the Fermi energy for a given graphene configuration. The [Seebeck] coefficient (S) is found to maximize at about 12% B or N doping. [Hall] resistivity is found to have similar trends as S. The Seebeck coefficient is found to increase with an increase in temperature from 100 K to 500 K.