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Journal Article
Influence of Metal-molecule Contacts on Decay Coefficients and Specific Contact Resistances in Molecular Junctions
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- Authors
- Gun Uk Wang, Tae-Wook Kim, Hyo Young Lee, Tak Hee Lee
- Issue Date
- 2008-02
- Citation
- Physical Review B : Condensed Matter and Materials Physics, v.76, no.20, pp.1-7
- ISSN
- 1098-0121
- Publisher
- American Physical Society(APS)
- Language
- English
- Type
- Journal Article
- Abstract
- The effect of metal-molecule contacts in molecular junctions is studied based on the analysis of a statistically significant number of devices and a proposed multibarrier tunneling (MBT) model, where a metal-molecule-metal junction is divided into three individual barriers: a molecular-chain body and metal-molecule contacts on either side of molecule. Using the MBT model with the statistical analysis, we could derive and distinguish decay coefficients for contact barriers (棺1, 棺2), contact-dependent and contact-independent decay coefficients (棺0 vs 棺body), and specific contact resistances in terms of different molecular length and different natures of metal-molecule contacts. © 2007 The American Physical Society.
- KSP Keywords
- Contact resistance(73.40.Cg), Dependent and, Metal-molecule contacts, Metal-molecule-metal junction, Statistical Analysis, molecular junctions