Paweł Jarka completing his Ph.D. at Division of Materials Processing Technology, Management and Computer Techniques in Materials Science, Institute of Engineering Materials and Biomaterials, the Silesian University of Technology 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\". So far Dr. Jarka has worked primarily on the use of organic molecular materials as active layers containing the bulk p-n heterojunction.During his scientific activity, was a participant many scientific international conferences. He is an author and coauthor of ca. 20 scientific publications worldwide including 2 publications in the Philadelphia list, he is and/or was a contractor of 3 research and didactic projects and a reviewer of numerous scientific publications.