| CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
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Two Possible Configurations for Silver-C60-Silver Molecular Devices and Their Conductance Characteristics |
| TIAN Guang-Jun, SU Wen-Yong |
| Department of Physics, Beijing Institute of Technology, Beijing 100081Department of Theoretical Chemistry, Royal Institute of Technology, AlbaNova S-10691, Stockholm, Sweden |
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| Cite this article: |
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TIAN Guang-Jun, SU Wen-Yong 2009 Chin. Phys. Lett. 26 068501 |
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Abstract 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 C60 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.
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| Keywords:
85.65.+h
73.63.-b
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Received: 09 December 2008
Published: 01 June 2009
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| PACS: |
85.65.+h
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(Molecular electronic devices)
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73.63.-b
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(Electronic transport in nanoscale materials and structures)
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