Electronic Transport Properties of an Anthraquinone-Based Molecular Switch with Carbon Nanotube Electrodes  

作　　者：ZHAO Peng LIU De-Sheng 赵朋;刘德胜(School of Physics and Technology,University of Jinan,Jinan 250022;School of Physics,Shandong University,Jinan 250100;Department of Physics,Jining University,Qufu 273155)

机构地区：[1]School of Physics and Technology,University of Jinan,Jinan 250022 [2]School of Physics,Shandong University,Jinan 250100 [3]Department of Physics,Jining University,Qufu 273155

出　　处：《Chinese Physics Letters》2012年第4期182-184,共3页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 11104115 and 11074146;the Natural Science Foundation of Shandong Province under Grant No ZR2009AL004;the Doctoral Foundation of University of Jinan under Grant No XBS1004.

摘　　要：Based on the nonequilibrium Green's function method and density functional theory calculations,we theoretically investigate the electronic transport properties of an anthraquinone-based molecular switch with carbon nanotube electrodes.The molecules that comprise the switch can convert between reduced hydroquinone (HQ) and oxidized anthraquinne (AQ) states via redox reactions.Our results show that the on-off ratio is increased one order of magnitude when compared to the case of gold electrodes.Moreover,an obvious negative differential resistance behavior at much low bias (0.07 V) is observed in the HQ form.

关 键 词：MOLECULAR CONVERT OXIDIZED 

分 类 号：TB3[一般工业技术—材料科学与工程]