K W Hipps - Orbital-Mediated Tunneling, Inelastic Electron Tunneling, and Electrochemical Potentials for Metal Phthalocyanine Thin Films

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  Publication Details (including relevant citation   information):

  Mazur, Ursula, Hipps, K. W. The Journal of Physical Chemistry   B 1999 103 (44) 9721-9727

  Abstract: Orbital-mediated electron tunneling   through both occupied and unoccupied orbitals of metal   phthalocyanines imbedded in metal−insulator−metal tunnel   junctions is reported and discussed in terms of transient   oxidation and reduction of the molecular species. Electrochemical   oxidation and reduction potentials for the solution phase   molecular systems are compared to the orbital-mediated tunneling   spectroscopy (OMTS) data and a strong correlation is observed.   These results are consistent with a simple model. It is   demonstrated that different redox sites and states within a given   molecule within a thin film will shift in unique ways relative to   the equivalent processes in solution. Inelastic scattering from   phthalocyanine π−π* transitions and metal centered d−d   transitions are also observed.

  Address (URL): http://dx.doi.org/10.1021/jp9923419