Paweł Jarka obtained his Ph.D. from the Department of Engineering Materials and Biomaterials, Silesian University of Technology, Poland, where he is currently employed. The subject of his doctoral thesis was \"The optoelectronic properties of active layers obtained by PVD methods in organic photovoltaic devices.\" His scientific interests concern functional materials. During his scientific activity, he has participated in many scientific international conferences. He is the co-author of several dozen scientific papers and five chapters in monographs and co-editor of one book. He also has one patent to his credit.