| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Electronic Non-Resonant Tunneling through Diaminoacenes: A First-Principles Investigation |
| ZHENG Ji-Ming1, HUANG Yao-Qing2**, REN Zhao-Yu1, YANG Hui-Jing3, CAO Mao-Sheng3**
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1Institute of Photonics and Photo-technology, National Key Laboratory of Photoelectric Technology and Functional Materials (Culture Base), and National Photoelectric Technology and Functional Materials and Application of Science and Technology International Cooperation Base, Northwest University, Xi'an 710069
2School of Science, Shanghai Institute of Technology, Shanghai 200235
3School of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081 |
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| Cite this article: |
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ZHENG Ji-Ming, HUANG Yao-Qing, REN Zhao-Yu et al 2011 Chin. Phys. Lett. 28 027302 |
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Abstract The electron transport through diaminoacenes sandwiched between two Au electrodes is simulated by using a first-principles analysis. The nonlinear current-voltage characteristic is observed. Effects of the ring number and positions of amine groups on equilibrium transport properties are found. For 1,4 series, the greater the number of the rings, the stronger the transmission spectrum near the Fermi energy. For 2,6 series, the larger the number of the rings, the weaker the transmission spectrum near the Fermi energy. This is helpful for understanding the recently reported results on conductance measurements using amines.
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| Keywords:
73.23.-b
73.40.Ty
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Received: 15 November 2010
Published: 30 January 2011
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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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