Negative differential resistance in a molecular junction of carbon nanotube and benzene

作者：Ma JiaSai^*; Li DongMei; Zhai YaXin; Zhao Peng

来源：Science China Physics,Mechanics & Astronomy, 2011, 54(8): 1433-1437.

DOI：10.1007/s11433-011-4392-z

• negative differential resistance
• carbon nanotube
• electronic transport
• non-equilibrium Green's function

We propose a novel molecular junction with single-walled carbon nanotubes as electrodes bridged by a benzene molecule, in which the electrodes are saturated by different terminations (C-, H- and N-). It is found that the different terminations at the carbon nanotube ends strongly affect the electronic transport properties of the junction. The current-voltage (I-V) curve of the N-terminated carbon nanotube junction shows a more striking nonlinear feature than that of the C- and H-terminated junctions at small bias. Moreover, the negative differential resistance behaviors can be observed significantly in the N-terminated carbon nanotube junction, whereas not in the other two cases.

• 出版日期2011-8
• 单位山东大学