期刊
JOURNAL OF APPLIED PHYSICS
卷 108, 期 6, 页码 -出版社
AIP Publishing
DOI: 10.1063/1.3483246
关键词
-
资金
- National Natural Science Foundation of China [10874143, 10774127]
- Specialized Research Fund for the Doctoral Program of Higher Education [20070530008, 200805300003]
- Ministry of Education of China [708068]
- Scientific Research Fund of Hunan Provincial Education [10K065]
Using the density functional theory and nonequilibrium Green's function method, we report the effect of the gold-single wall carbon nanotubes (SWCNTs) composite contacts on the electronic structures and the transport properties of the device constructed by SWCNTs [SWCNT(10,0) or SWCNT(5,5)] and gold electrodes. The transmissions of the devices are greatly improved due to the strong couplings between carbon and gold atoms of the composite contacts. As for SWCNT(10,0), the gold atoms in the composite contacts behave as n-type dopant and depress the Schottky barrier between SWCNT(10,0) and the gold electrode. Moreover, the negative differential resistance characteristics occurs in the devices constructed by gold-SWCNT(10,0) composite contacts. c 2010 American Institute of Physics. [doi:10.1063/1.3483246]
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据