| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Electronic Transport of a Molecular Photoswitch with Graphene Nanoribbon Electrodes |
| WU Qiu-Hua1, ZHAO Peng1**, LIU De-Sheng2,3 |
1School of Physics and Technology, University of Jinan, Jinan 250022
2School of Physics, Shandong University, Jinan 250100
3Department of Physics, Jining University, Qufu 273155
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| Cite this article: |
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WU Qiu-Hua, ZHAO Peng, LIU De-Sheng 2014 Chin. Phys. Lett. 31 057304 |
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Abstract Based on non-equilibrium Green's function formalism and density functional theory calculations, we investigate the electronic transport properties of 15,16-dinitrile dihydropyrene/cyclophanediene bridged between two zigzag graphene nanoribbon electrodes. Our results demonstrate that the system can exhibit good switching behavior with the maximum on-off ratio high up to 146 which is improved dramatically compared with the case of gold electrodes. Moreover, an obvious negative differential resistance behavior occurs at 0.3 V, making the system have more potential in near future molecular circuits.
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Published: 24 April 2014
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| PACS: |
73.23.-b
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(Electronic transport in mesoscopic systems)
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85.65.+h
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(Molecular electronic devices)
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71.15.Mb
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(Density functional theory, local density approximation, gradient and other corrections)
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