Perovskite Photoluminescence quenching by electrogenerated donor and acceptor polymers

JAVIER DURANTIN, LORENA MACOR, MARIA B SUAREZ, DANIEL HEREDIA, M BELEN BALLATORE, EDGARDO DURANTINI, LUIS OTERO, MIGUEL GERVALDO

Villa Carlos Paz

Encuentro; XIII Encuentro Latinoamericano de Fotoquímica y Fotobiología (XIII ELAFOT); 2017

In this work we present the formation of new films generated by electropolymerization of both, porphyrins and also fullerenes, for their utilization as HTM and ETM in perovskite based solar cells, respectively. The polymers were generated over conductive substrates by an electrochemical technique. SEM images showed that polymers completely cover the substrates, and that posterior deposition of the perovskite over the polymers results in the formation of very uniform perovskite layers.Photoluminescence experiments showed that perovskite photoluminescence is quenched by the porphyrin and fullerene electropolymers. These results indicate that the porphyrin electropolymers can work as hole extraction and transport layer, while the fullerene works as electron transport and extraction layer.The use of a simple electrochemical methodology in the formation of organic hole and electron transport layers in perovskite solar cells opens a new approach for the fabrication of efficient energy conversion systems.