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题名: The effects of vacancies on the transport properties of zigzag graphene nanoribbons
作者: Zhang Y(张嵛) ; Liu LQ(刘连庆) ; Jiao ND(焦念东) ; Xi N(席宁) ; Wang YC(王越超) ; Dong ZL(董再励)
作者部门: 机器人学研究室
会议名称: 2010 4th IEEE Nanotechnology Materials and Devices Conference, NMDC2010
会议日期: October 12-15, 2010
会议地点: Monterey, CA, United states
会议主办者: IEEE Nanotechnology Council; Michigan State University
会议录: 2010 IEEE Nanotechnology Materials and Devices Conference, NMDC2010
会议录出版者: IEEE Computer Society
会议录出版地: Piscataway, NJ
出版日期: 2010
页码: 6-9
收录类别: EI
ISBN号: 978-1-4244-8896-4
关键词: Density functional theory ; Graphene ; Green's function ; Nanotechnology ; Transport properties
摘要: The transport properties of zigzag graphene nanoribbons (ZGNRs) with different patterns of vacancies are investigated by using density functional theory and nonequilibrium Green's function (NEGF) formalism. It is found that the transport properties are different with a different lattice type vacancy (A-type or B-type vacancy). The conductance of ZGNRs is more sensitive to an interior vacancy than an edge vacancy. More importantly, the pattern of interior vacancies has enormous influence on the electron transport around the Femi energy. As hexagon carbons are removed, the ZGNRs transform from metallic to semiconducting. Thus one can tune the electron properties of ZGNRs by patterning vacancies.
产权排序: 1
内容类型: 会议论文
URI标识: http://ir.sia.cn/handle/173321/8907
Appears in Collections:机器人学研究室_会议论文

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