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Developing an Agglomerate of Graphite and Black Carbon in an Ethylene-Vinyl Acetate in Toluene Solution for Producing Electrodes for HTM-Free Perovskite Solar Cells
C. Montes, L. Ocaña, S. González-Pérez, B. González-Diaz, M. Friend, M. Cendagorta
Contact, Metallization, Metallisation, Graphite, Perovskite
Perovskites and Other Non-Silicon Materials, MJs and Tandems
Subtopic: Perovskites
Event: 37th European Photovoltaic Solar Energy Conference and Exhibition
Session: 3BV.1.27
667 - 672
ISBN: 3-936338-73-6
Paper DOI: 10.4229/EUPVSEC20202020-3BV.1.27
0,00 EUR
Document(s): paper, poster


The present paper summarizes the research that has been carried out, in order to develop agglomerates, made of graphite and graphite with black carbon in an ethylene vinyl acetate in toluene solution, with the purpose of producing and electrically evaluate them to be used as back electrodes in perovskite solar cells. Then, a new processing technique and a new cell architecture was developed that incorporates these materials, acting as both, back electrodes and encapsulates, in order to produce Hole Transport Material (HTM) free perovskite solar cells in ambient conditions. The preliminary results obtained show very poor Power Conversion Efficiencies (of about 0.25%) on the produced cells. However, these values remained quite stable throughout the available testing period (of about 30 days). Therefore, although it is clear that more work is required to address such significant power losses, we believe that we have also proven that this simple but innovative approach may have exciting possibilities.