Effect of the metal/organic interface phenomena on the current-voltage characteristics of organic single electron tunneling device

Tohru Kubotaa, Shiyoshi Yokoyama, Tatsuo Nakahama, Shinro Mashiko,
Yutaka Noguchi, Yutaka Majima, Mitsumasa Iwamoto

Abstract
The current- voltage (I-V) characteristic of Au/PI/(Rh-G2 + PI)/PI/Au (or Al) junctions was examined. An asymmetrical I-V characteristic with several steps was observed for Au/PI/PI:Rh-G2/PI/Al junctions, whereas a symmetric I-V characteristic with steps was obtained for Au/PI/PI:Rh- G2/PI/Au junctions. It was concluded that the presence of metal /organic interfacial states made a significant contribution to the I-V characteristics of these junctions.

DOI:10.1016/S0040-6090(01)01123-3