JOURNAL OF PHYSICS-CONDENSED MATTER;
JUN 6 2012.
Web of Science Citations:
We report on the analysis of nonlinear current-voltage characteristics exhibited by a set of blocking metal/SnO2/metal. Schottky barrier heights in both interfaces were independently extracted and their dependence on the metal work function was analyzed. The disorder-induced interface states effectively pinned the Fermi level at the SnO2 surface, leading to the observed Schottky barriers. The model is useful for any two-terminal device which cannot be described by a conventional diode configuration. (AU)