Guest Lecture | Dry Deposition of Perovskite Films and Solids for Optoelectronics

Bio: Michele Sessolo is Associate Professor in the Department of Inorganic Chemistry at the University of Valencia. He received his degree in Chemistry from the University of Padova (Italy) in 2006. He later moved to the University of Valencia where he received a M.Sc. and Ph.D. (2010) for his work on organic light-emitting diodes. He spent 2 years as Marie Curie Fellow in the Bioelectronics Dept. at the Ecole des Mines de Saint-Etienne (France), working on the application of conducting polymer to electrophysiology (organic bioelectronics). In 2013 he rejoined the University of Valencia, first as a Juan de la Cierva Fellow and later as a Ramón y Cajal fellow, working on innovative perovskite optoelectronic devices. He leads the research line on perovskite photodetector technology.

Abstract: Lead and tin halide perovskites are currently under intense investigation for their potential applications in optoelectronics, due to their favorable and adjustable semiconducting properties. Despite the potential for widespread adoption in the industrial sector, dry deposition of perovskite films and devices remains a specialized area. Here we will examine the latest developments in the vacuum deposition of perovskite films, focusing on methods to manipulate their morphology and structure. The impact of composition, deposition rate, and substrate temperature on semiconductor properties and device performance will be discussed. We will also present a dry synthetic method to prepare powders and functional disks starting from raw chemical precursors. Lastly, we will show the use of thin films and disks in visible and X-ray photon detectors.