New Photovoltaic Materials Based on Composites of Conjugated Polymer with Tetra-Substituted Metallophthalocyanines and [60]Fullerene

Abstract

The design and synthesis of the new materials for the organic photovoltaic (PV) cells based on composites of a conjugated polymer and fullerene or its derivatives are intensively investigated for their application in solar cells. In this work, we report the results on some composites of the conjugated polymer MEH-PPV (poly(2-methoxy-5-(2′-ethyl-hexyloxy)-1,4-phenylenevinylene) and P3HT (poly-3-hexylthiophen) with [60]fullerene and metal phthalocyanines. We have measured the polymer photoluminescence quenching in the composites in order to evaluate the ability of our compounds as the acceptors in the process of photoinduced electron transfer. We have also studied the photovoltaic properties of the composites. We have found that adding of phthalocyanine to fullerene may lead to an increase in the acceptor ability and in the higher photovoltaic efficiency of the composite at the same fullerene contents.