Conjugated Polymeric Donor — Fullerene Type Acceptor Systems For Photoelectrochemical Energy Conversion

摘要

The usage of fullerenes as electron mediator in photoelectrochemical cells with a conjugated polymer as electron donor and a dissolved redox couple as acceptor is described. To prevent solubility problems, the fullerenes are covalently linked to the conjugated polymer polybithiophene ("double cable"). Copolymers with different amount of fullerenes are studied in respect to light absorption and photovoltaic device properties. Compared with polybithiophene, the introduction of fullerenes in the devices enhances the photovoltaic response significantly.