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journal article·2012-03-01Open access

Electrical transport across metal/two-dimensional carbon junctions: Edge versus side contacts

Yihong Wu, Ying Wang, Jiayi Wang, Miao Zhou, Aihua Zhang, Chun Zhang, Yanjing Yang, Younan Hua, Baoxi Xu

AIP Advances· Volume 2· Issue 1
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Source abstract

Abstract

Metal/two-dimensional carbon junctions are characterized by using a nanoprobe in an ultrahigh vacuum environment. Significant differences were found in bias voltage (V) dependence of differential conductance (dI/dV) between edge- and side-contact; the former exhibits a clear linear relationship (i.e., dI/dV ∝ V), whereas the latter is characterized by a nonlinear dependence, dI/dV ∝ V3/2. Theoretical calculations confirm the experimental results, which are due to the robust two-dimensional nature of the carbon materials under study. Our work demonstrates the importance of contact geometry in graphene-based electronic devices.
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Research context

Nanomaterials

OpenAlex topics: Graphene research and applications · Molecular Junctions and Nanostructures · Carbon Nanotubes in Composites

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

National University of Singapore 1 Department of Electrical and Computer Engineering, , 4 Engineering Drive 3, Singapore 117576, Singapore

NUS Graduate School for Integrative Sciences and Engineering 2 , Centre for Life Sciences, #05-01, 28 Medical Drive, Singapore 117456, Singapore

National University of Singapore 3 Department of Physics, , 2 Science Drive 3, Singapore 117542, Singapore

National University of Singapore 4 Department of Chemistry, , 3 Science Drive 3, Singapore 117543, Singapore

GLOBALFOUNDRIES 5 , Singapore Pte Ltd, 60 Woodlands Industrial Park D Street 2, Singapore 738406, Singapore

National University of Singapore 6 Data Storage Institute, 5 Engineering Drive 1, , Singapore 117608, Singapore

References (23)

Show source-provided references
1. Phys. Rev. · 1947 · 71 · 62210.1103/PhysRev.71.622 ↗
2. Phys. Rev. · 1958 · 109 · 27210.1103/PhysRev.109.272 ↗
3. J. Phys. Soc. Jpn. · 2005 · 74 · 77710.1143/JPSJ.74.777 ↗
4. Nature · 2005 · 438 · 19710.1038/nature04233 ↗
5. Nature · 2005 · 438 · 20110.1038/nature04235 ↗
6. Rev. Mod. Phys. · 2009 · 81 · 10910.1103/RevModPhys.81.109 ↗
7. Rev. Mod. Phys. · 2011 · 83 · 40710.1103/RevModPhys.83.407 ↗
8. Nature Nanotechnology · 2007 · 2 · 60510.1038/nnano.2007.300 ↗
9. Nature Nanotechnology · 2011 · 6 · 17910.1038/nnano.2011.6 ↗
10. Solid State Commun. · 2009 · 149 · 106810.1016/j.ssc.2009.02.039 ↗
11. Physica E-Low-Dimensional Systems & Nanostructures · 2010 · 42 · 67710.1016/j.physe.2009.11.080 ↗
12. Appl. Phys. Lett. · 2010 · 96 · 01351210.1063/1.3290248 ↗
13. Appl. Phys. Lett. · 2010 · 97 · 14351410.1063/1.3491804 ↗
14. Journal of Physical Chemistry C · 2010 · 114 · 1784510.1021/jp806437y ↗
15. Adv. Mater. · 2002 · 14 · 6410.1002/1521-4095(20020104)14:1<64::AID-ADMA64>3.0.CO;2-G ↗
16. J. Mater. Chem. · 2004 · 14 · 46910.1039/b311682d ↗
17. J. Appl. Phys. · 2010 · 108 · 07130110.1063/1.3460809 ↗
18. Acs Nano · 2010 · 4 · 293710.1021/nn100276w ↗
19. Carbon · 2007 · 45 · 222910.1016/j.carbon.2007.06.017 ↗
20. J. Appl. Phys. · 2009 · 106 · 09430210.1063/1.3253734 ↗
21. 1989
22. Phys. Rev. B · 2001 · 63 · 24540710.1103/PhysRevB.63.245407 ↗
23. Phys. Rev. B · 2002 · 65 · 16540110.1103/PhysRevB.65.165401 ↗