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Paper   IPM / Nano-Sciences / 11752
School of Nano Science
  Title:   Length Dependence of Electronic Transport in Carbon Nanowires
  Author(s): 
1 . Seifollah Jalili
2 . A.H. Pangh
  Status:   Published
  Journal: J. Iran. Chem. Society
  No.:  3
  Vol.:  7
  Year:  2010
  Pages:   11
  Supported by:  IPM
  Abstract:
The transport properties of oligo(ethyne) dithiolates coupled with gold electrodes is calculated using the non-equilibrium Green’s functions technique. The effect of molecular wire length on current-voltage characteristics for (-C≡C-)n n = 1-5 is investigated. The calculated decay coefficient at low bias voltage is (0.025 ± 0.002 A°-1) which is found to be lower than that of alkanthiols. Results reveal that the HOMO-LUMO gap of the oligo(ethyne)s are correlated to the reciprocal of the number of triple bonds.

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