Center for Excitonics


Improved Performance and Stability of Inverted Planar Perovskite Solar Cells Using Fullerene Layers*

October 4, 2017 at 12 noon/von Hippel rm: 13-2137

Edison Castro
Department of Chemistry, University of Texas, El Paso

The unique properties of organic-inorganic hybrid perovskite materials make them promising candidates for developing next-generation photovoltaic cells for commercial applications to compete with silicon solar cells. Inverted planar structure perovskite solar cells (PSCs), due to their low temperature precessing and lack of hysteretic problems, are attracting increased attention by researchers around the world. Fullerene derivatives are the most widely used electron transporting materials (ETMs) in inverted planar perovskite solar cells, especially [6,6]-phenyl-C61-butyric acid methylester (PC61BM), which exhibits very good performance. However, the influence of adducts on fullerene-based PSCs performance has not been fully explored to date. Here, new C60 and C70 fullerene derivatives were synthesized in high yields via Bingel and 1,3-dipolar cycloaddition reactions at room temperature and incorporated into perovskite solar cells as electron transporting materials.

Edison Castro obtained his BSc from the Universidad de Narino, Colombia  in 2008, and his M.S. degree from the Universidad del Valle in Cali, Colombia in 2011. Currently he is pursuing his Ph.D. under the supervision of Prof. Luis Echegoyen at The University of Texas at El Paso, His current research interests include the synthesis of fullerene derivatives for photovoltaic and biological applications, and design of perovskite solar cells. He has published coauthored 30 publications (6 from his master degree and 24 from his Ph.D.).

*This talk is part of the Perovskites Seminar Series organized by Juan-Pablo Correa-Baena from MIT’s PV Lab and sponsored by the Center for Excitonics. For more info contact Juan-Pablo: