Electronic transport properties of capped-carbon-nanotube-based molecular junctions with multiple N and B dopants

被引：0
|
作者：
ZHAO Peng1 & LIU DeSheng2 1 School of Physics and Technology
2 State Key Laboratory of Crystal Materials
机构：
来源：
Science Bulletin | 2012年 / 57卷 / 17期
基金：
中国国家自然科学基金;
关键词：
carbon nanotube; rectifying; negative differential resistance; non-equilibrium Green function; density functional theory;
D O I：
暂无
中图分类号：
TB383.1 [];
学科分类号：
070205 ; 080501 ; 1406 ;
摘要：
By applying non-equilibrium Green’s function in combination with density functional theory,we investigated the electronic transport properties of capped-carbon-nanotube-based molecular junctions with multiple N and B dopants.The results show that the electronic transport properties are strongly dependent on the numbers and positions of N and B dopants.Best rectifying behavior is observed in the case with one N and one B dopants,and it is deteriorated strongly with the increasing dopants.The rectifying direction is even reversed with the change of doping positions.Moreover,obvious negative differential resistance behavior at very low bias is observed in some doping cases.
引用
收藏
页码：2073 / 2077
页数：5
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