I/V characteristics of a molecular switch (Articolo in rivista)

Type
Label
  • I/V characteristics of a molecular switch (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Alternative label
  • Cacelli I., Ferretti A., Girlanda M., Macucci M. (2007)
    I/V characteristics of a molecular switch
    in Chemical physics (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Cacelli I., Ferretti A., Girlanda M., Macucci M. (literal)
Pagina inizio
  • 26 (literal)
Pagina fine
  • 36 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 333 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • DCCI Univ Pisa, IET Univ. Pisa (literal)
Titolo
  • I/V characteristics of a molecular switch (literal)
Abstract
  • We present a study of the conduction properties of a class of aromatic compounds, whose conformation can be modulated with a transverse electric field, with strong effects on the molecular transport properties. The theoretical method includes the molecule–electrode interaction in a simple, although effective way: the coupling matrix elements are considered independent from the energy of the continuum spectrum of the lead. This results in a simple expression for the molecular Green’s function with a significant simplification in the expression of the transmission function. The effects of the voltage bias on the electronic molecular density is included through a uniform effective electric field. A simplified but accurate method for the evaluation of the molecular response to the field, which spares lengthy computations for each value of the voltage, is presented. The proposed method is calibrated on the widely studied benzene-1,4-dithiol molecule. (literal)
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