Design of a Universal Reversible Bidirectional Current Switch Based on the Fullerene–Phthalocyanine Supramolecular System

A novel bidirectional current ON–OFF switch controlled by electron injection and deprivation was proposed on the basis of the density functional theory (DFT) calculation over a fullerene–phthalocyanine supramolecular system PcCoC60 for the first time. The electron density for PcCoC60 was revealed to move from fullerene to phthlocyanine only in the oxidized form and from phthlocyanine to fullerene only in the reduced form, reaching the control of electron movement direction by changing the oxidation state of this supramolecular system.