Two Possible Configurations for Silver-C60-Silver Molecular Devices and Their Conductance Characteristics  

作　　者：田广军 苏文勇 

机构地区：[1]Department of Physics, Beijing Institute Of Technology, Beijing 100081 [2]Department of Theoretical Chemistry, Royal Institute of Technology, AlbaNova S-10691, Stockholm, Sweden

出　　处：《Chinese Physics Letters》2009年第6期283-286,共4页中国物理快报（英文版）

摘　　要：Coherent electronic transport properties of silver-C60-silver molecular junctions in different configurations are studied using hybrid density function theory. The experimentally measured current flows of （760 molecules adsorbed on the silver surface are well reproduced by theoretical calculations. It is found that the current-voltage characteristics of the molecular junctions depend strongly on the configurations of the junctions. Transmission spectra combined with density of states can help us to understand in depth the transport properties. Different kinds of electrode construction are also discussed. With the help of the calculation, two possible configurations of silver-C60-silver molecular junctions are suggested.Coherent electronic transport properties of silver-C60-silver molecular junctions in different configurations are studied using hybrid density function theory. The experimentally measured current flows of （760 molecules adsorbed on the silver surface are well reproduced by theoretical calculations. It is found that the current-voltage characteristics of the molecular junctions depend strongly on the configurations of the junctions. Transmission spectra combined with density of states can help us to understand in depth the transport properties. Different kinds of electrode construction are also discussed. With the help of the calculation, two possible configurations of silver-C60-silver molecular junctions are suggested.

分 类 号：O561.2[理学—原子与分子物理] O647.3[理学—物理]