Switching and other high field effects in organic films

Abstract

The electronic conduction properties and existence of possible reproducible bistable switching in pure naphthalene and anthracene films with mobile electrode material has been investigated. Although bistable switching was observed, previously reported conclusions regarding the reproducibility and mechanics of switching in pure organic films have not been confirmed. It is considered that any observed switching effects occur as a result of classical electrical breakdown and not by Ovshinsky type mechanisms. Both Schottky emission and space-charge-limited conduction effects were observed, and an observed conductivity frequency dependence of the form G(ω)∞ωⁿ was interpreted in terms of hopping charge transport.