Affiliation: | a Konarka Technologies GmbH, Landgrabenstr. 94, D-90443 Nürnberg, Germany b Light Technology Institute, Universität Karlsruhe (TH), Kaiserstr. 12, D-76131 Karlsruhe, Germany. c Department of Mechanical Engineering and Materials Science and Engineering, Cyprus University of Technology, 3603 Limassol, Cyprus |