On the Mechanism of Negative Differential Resistance in Ferrocenylundecanethiol Self-Assembled Monolayers

Abstract

Negative differential resistance (NDR) peaks in the current−voltage characteristics of ferrocenylundecanethiol self-assembled monolayers are not reversible. The peaks turn to smoothly increasing currents as oxygen is removed from the system, indicating that NDR arises from the reaction of an energetic charged species with ambient oxygen