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Effects of Contact Geometry on Electron Transport of 1,4-Diaminobenzene |
| ZHENG Ji-Ming1;REN Zhao-Yu1;GUO Ping2;TIAN Jin-Shou3;BAI Jin-Tao1 |
| 1Institute of Photonics and Photo-technology, Northwest University, Xi'an 7100692Department of Physics, Northwest University, Xi'an 7100693Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710069 |
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| Cite this article: |
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ZHENG Ji-Ming, REN Zhao-Yu, GUO Ping et al 2008 Chin. Phys. Lett. 25 1423-1426 |
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Abstract The equilibrium electron transport of 1,4-diaminobenzene sandwiched between two Au electrodes is simulated by using a first principles analysis. The results show that equilibrium conductance increases with the molecule-electrode distance decreasing, and a platform occurs at the distance varying from 1.4A to 1.9A, implying the insensitiveness of 1,4-diaminobenzene equilibrium conductance to molecule--electrode distance. This is helpful to understand the improved reliability and reproducibility of conductance measurements using amines.
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73.23.-b
73.40.Ty
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Received: 27 November 2007
Published: 31 March 2008
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| PACS: |
73.23.-b
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(Electronic transport in mesoscopic systems)
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73.40.Ty
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(Semiconductor-insulator-semiconductor structures)
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