Fast Coevaporation of 1 μm Thick Perovskite Solar Cells

MANUEL PIOT; JAVIER ENRIQUE SEBASTIAN ALONSO; KASSIO P.S. ZANONNI; NATHAN RODNEY; FEDERICO VENTOSINOS; CRISTINA ROLDAN-CARMONA; MICHELE SESSOLO; HENK J. BOLINK

ACS Energy Letters

American Chemical Society

Año: 2023 vol. 8 p. 4711 - 4713

Coevaporation of perovskite films allows for a fine control over the material stoichiometry and thickness but is typically slow, leading to several-hour processes to obtain thick films required for photovoltaic applications. In this work, we demonstrate the coevaporation of perovskite layers using faster deposition rates, obtaining 1 μm thick films in approximately 50 min. We observed distinct structural properties and obtained devices with efficiency exceeding 19%, demonstrating the relevance of this deposition process from a material perspective and also in view of potential industrialization.