Effect of Chemical Doping on the Electronic Transport Properties of Tailoring Graphene Nanoribbons
Yang Liu, Cai-Juan Xia** , Bo-Qun Zhang, Ting-Ting Zhang, Yan Cui, Zhen-Yang Hu
School of Science, Xi'an Polytechnic University, Xi'an 710048
Abstract ：The electronic transport properties of a molecular junction based on doping tailoring armchair-type graphene nanoribbons (AGNRs) with different widths are investigated by applying the non-equilibrium Green's function formalism combined with first-principles density functional theory. The calculated results show that the width and doping play significant roles in the electronic transport properties of the molecular junction. A higher current can be obtained for the molecular junctions with the tailoring AGNRs with $W=11$. Furthermore, the current of boron-doped tailoring AGNRs with widths $W=7$ is nearly four times larger than that of the undoped one, which can be potentially useful for the design of high performance electronic devices.
收稿日期: 2018-01-22
出版日期: 2018-05-19
:
71.15.Mb
(Density functional theory, local density approximation, gradient and other corrections)
73.23.-b
(Electronic transport in mesoscopic systems)
85.65.+h
(Molecular electronic devices)
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2018, Vol. 35 
