| ชื่อเรื่อง | : | Length-dependent conductance of molecular wires and contact resistance in metal–molecule–metal junctions |
| นักวิจัย | : | Liu, Hongmei , Wang, Nan , Zhao, Jianwei , Guo, Yan , Yin, Xing , Boey, Freddy Yin Chiang , Zhang, Hua |
| คำค้น | : | DRNTU::Engineering::Materials. |
| หน่วยงาน | : | Nanyang Technological University, Singapore |
| ผู้ร่วมงาน | : | - |
| ปีพิมพ์ | : | 2551 |
| อ้างอิง | : | Liu, H., Wang, N., Zhao, J., Guo, Y., Yin, X., Boey, F. Y. C., & Zhang, H. (2008). Length-dependent conductance of molecular wires and contact resistance in metal–molecule–metal junctions. ChemPhysChem, 9(10), 1416-1424. , 1439-7641 , http://hdl.handle.net/10220/8611 , http://dx.doi.org/10.1002/cphc.200800032 |
| ที่มา | : | - |
| ความเชี่ยวชาญ | : | - |
| ความสัมพันธ์ | : | ChemPhysChem |
| ขอบเขตของเนื้อหา | : | - |
| บทคัดย่อ/คำอธิบาย | : | Molecular wires are covalently bonded to gold electrodes—to form metal–molecule–metal junctions—by functionalizing each end with a SH group. The conductance of a wide variety of molecular junctions is studied theoretically by using first-principles density functional theory (DFT) combined with the nonequilibrium Green′s function (NEGF) formalism. Based on the chain-length-dependent conductance of the series of molecular wires, the attenuation factor β is obtained and compared with the experimental data. The β value is quantitatively correlated to the molecular HOMO–LUMO gap. Coupling between the metallic electrode and the molecular bridge plays an important role in electron transport. A contact resistance of 6.0±2.0 KΩ is obtained by extrapolating the molecular-bridge length to zero. This value is of the same magnitude as the quantum resistance. |
| บรรณานุกรม | : |
Liu, Hongmei , Wang, Nan , Zhao, Jianwei , Guo, Yan , Yin, Xing , Boey, Freddy Yin Chiang , Zhang, Hua . (2551). Length-dependent conductance of molecular wires and contact resistance in metal–molecule–metal junctions.
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Liu, Hongmei , Wang, Nan , Zhao, Jianwei , Guo, Yan , Yin, Xing , Boey, Freddy Yin Chiang , Zhang, Hua . 2551. "Length-dependent conductance of molecular wires and contact resistance in metal–molecule–metal junctions".
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Liu, Hongmei , Wang, Nan , Zhao, Jianwei , Guo, Yan , Yin, Xing , Boey, Freddy Yin Chiang , Zhang, Hua . "Length-dependent conductance of molecular wires and contact resistance in metal–molecule–metal junctions."
กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2551. Print. Liu, Hongmei , Wang, Nan , Zhao, Jianwei , Guo, Yan , Yin, Xing , Boey, Freddy Yin Chiang , Zhang, Hua . Length-dependent conductance of molecular wires and contact resistance in metal–molecule–metal junctions. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2551.
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