Contact configuration dependence of conductance of 1,4-phenylene diisocyanide molecular junction

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• 作者：Xun-Wang Yan ; Rui-Jin Liu ; Zong-Liang Li ; Bin Zou ; Xiu-Neng Song and Chuan-Kui Wang
• 刊名：Chemical Physics Letters
• 出版年：2006
• 出版时间：29 September 2006
• 年：2006
• 卷：429
• 期：1-3
• 页码：225-228
• 全文大小：273 K

文摘

The elastic scattering Green function theory in combination with density-functional theory is applied for studying electronic transport properties of single 1,4-phenylenediisocyanide molecules sandwiched between two gold electrodes at ab initio level. The special attention is paid to effect of contact configurations between molecule and electrodes on current and conductance characteristics of the molecular junction. Conductive features are shown to be strongly dependent on detailed contact structures. For the contacts formed in tetrahedron-typed configuration, good agreement in conductive features between theory and experiment can be achieved.