Control of electron transfer in conjugated polymer fullerene heterostructures

We investigate electron transfer in conjugated polymer/fullerene heterostru ctures prepared by a combination of spin-coating and self-assembly methods. Via insertion of ultrathin (<10nm) spacer layers of varying thickness betw een the conjugated polymer layer and a self-assembled monolayer of a functi onalized fullerene, it is possible to control the electron transfer between the photoexcited conjugated polymer acting as a donor and the electron acc epting fullerene.