▎ 摘 要
We report an investigation of electrical and thermal characteristics of graphene-coated copper. The I-V characteristics and the temperature coefficient of resistance (TCR) are calculated based on first-principles simulation. A single layer of graphene helps to enhance the transport properties of copper due to the weak bonding between copper and graphene as confirmed by the band structure calculations. Projected density of states (PDOS) at the interface between copper and graphene show that graphene contributes to the total density of states at Fermi level. The results demonstrate graphene as a coating barrier to reduce the electrical resistance and the TCR. In addition, the current capability of the Cu is increased by 84.16%. (C) 2018 The Electrochemical Society.