| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Detection of Ordered Molecules Adsorbed on Graphene: a Theoretical Study |
| WANG Yong1,2, ZHANG Xue-Qing3, LI Hui1** |
1Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, Jinan 250061
2School of Physics and Technology, University of Jinan, Jinan 250022
3Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Eindhoven 5600 MB, Netherlands
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| Cite this article: |
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WANG Yong, ZHANG Xue-Qing, LI Hui 2014 Chin. Phys. Lett. 31 117201 |
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Abstract Graphene has been demonstrated to be able to detect individual gas molecules [Schedin et al. Nat. Mater. 6 (2007) 652], which has attracted a lot of sensor research activities. Here we report for the first time that graphene is capable of detecting the ordering degree of absorbed water molecules. The efficiency of doping varies from the degrees of molecular ordering. The simulated results show that the highly ordered water molecules contribute more to the doping effect, which reduces the conductance of the water/graphene system.
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Published: 28 November 2014
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| PACS: |
72.80.Rj
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(Fullerenes and related materials)
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73.20.At
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(Surface states, band structure, electron density of states)
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73.50.-h
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(Electronic transport phenomena in thin films)
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