西安电子科技大学学报（自然科学版）2017，Vol.44Issue(5)：87-91,120,6.DOI:10.3969/j.issn.1001-2400.2017.05.015
十字形石墨烯纳米结的电子输运特性
Electronic transport properties of cross graphene nano-junction
摘要
Abstract
Graphene nanoribbons have special electrical properties,The electron transport properties can be regulated by controlling their geometry or doping.The metallic properties and semiconductor properties of different chiral graphene nanoribbons are used to build the cross graphene nano-j unction in this paper.The method of density functional theory and non-equilibrium Green's function are used to research electronic transport properties of the graphene nano-j unction with different heights and widths and locations of doping. It is shown that the graphene nano-j unction shows metallic properties with increase in height and width of the arm.But the transmission spectral line has a clear oscillation.Since the doped nitrogen atom intensifies electron scattering,the electronic transport properties decrease.And the electron transport properties when the two arms are doped worsens more compared to the case of trunk doping.关键词
石墨烯纳米带/十字形异质结构/密度泛函理论/非平衡格林函数/电子输运特性Key words
graphene nanoribbon/cross heterojunction nanostructure/density functional theory/non-equilibrium Green's function/electronic transport propertie分类
信息技术与安全科学引用本文复制引用
娄利飞,王东洋,潘青彪,张军琴..十字形石墨烯纳米结的电子输运特性[J].西安电子科技大学学报（自然科学版）,2017,44(5):87-91,120,6.基金项目
国家自然科学基金重点资助项目(61334033) （61334033）
国家自然科学基金资助项目(61474089) （61474089）
中央高校基本科研业务费专项资金资助项目(K5051225011) （K5051225011）
