Fullerene-tetracyanoquinodimethane thin film and novel electrical bistability

Abstract

We report the electrical bistability of C₆₀-tetracyanoquinodimethane (TCNQ) thin films fabricated by using an ionized-cluster-beam method in a high vacuum system. The films were characterized by transmission electron microscopy and electronic absorption spectroscopy. The spectroscopic results showed evidence of the formation of the charge-transfer complex system in C₆₀-TCNQ thin films, and the TEM results revealed the microstructure of the films. The film thickness is ∼100 nm. The electromotive intensity at the transition point was of the order of 10⁶ V/m. The possible mechanism of the electrical phenomena of the films is discussed in the paper.