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  • Arroyo, C.R., et al. (author)
  • Quantum interference effects at room temperature in OPV-based single-molecule junctions
  • 2013
  • In: Nanoscale Research Letters. - 1556-276X .- 1931-7573. ; 8:1
  • Journal article (peer-reviewed)abstract
    • Interference effects on charge transport through an individual molecule can lead to a notable modulation and suppression on its conductance. In this letter, we report the observation of quantum interference effects occurring at room temperature in single-molecule junctions based on oligo(3)-phenylenevinylene (OPV3) derivatives, in which the central benzene ring is coupled to either para- or meta-positions. Using the break-junction technique, we find that the conductance for a single meta-OPV3 molecule wired between gold electrodes is one order of magnitude smaller than that of a para-OPV3 molecule. Theoretical calculations confirm the occurrence of constructive and destructive interference in the para- and meta-OPV3 molecules respectively, which arises from the phase difference of the transmission coefficients through the molecular orbitals.
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Type of publication
journal article (1)
Type of content
peer-reviewed (1)
Author/Editor
Moth-Poulsen, Kasper ... (1)
Arroyo, C.R. (1)
Frisenda, R. (1)
Seldenthuis, J.S. (1)
Bjornholm, T. (1)
van der Zant, Herre (1)
University
Chalmers University of Technology (1)
Language
English (1)
Research subject (UKÄ/SCB)
Natural sciences (1)
Year
2013 (1)

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