期刊论文

Liew, K. M.

英文

Applied Physics Letters

0003-6951

2014

104

2

023102

10.1063/1.4861623

Research Grants Council of the Hong Kong Special Administrative Region, ChinaHong Kong Research Grants Council [9041674, CityU 118411]; China National Natural Science FoundationNational Natural Science Foundation of China (NSFC) [11172253, 51302022]; Science and Technology Program of Hunan Province of China [2012GK3054]; University of Wisconsin Milwaukee Research Growth Initiative grant program

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In this paper, the (5, 5) capped carbon nanotubes (CNTs) in contact with different lengths of sp monoatomic chains grown on the surface of graphite substrate are fabricated and its electronic transport properties sandwiched between CNT and graphite electrodes are investigated. The first-principles calculations based on nonequilibrium Green's function in combination with density-functional theory show that their rectifying performance and negative differential resistance behavior are observed under very low biases and obviously are enhanced when...