is a senior scientist at Fraunhofer Institute for Surface Engineering and Thin Films (IST) in the Large Area Coating department. He works on magnetron sputtering for photovoltaic applications. Formerly he was a scientific assistant at the Institute of Solar Energy Research GmbH (ISFH). Volker Sittinger received his doctoral degree in optical and electrical characterisation of electrodeposited CuInSe2 solar cells from the University of Oldenburg in 2003 and studied physics at the University of Karlsruhe.