1. Department of Polymer Chemistry; Institute of Natural Science; TU Chemnitz; Straße der Nationen 62 09111 Chemnitz Germany
2. Department of Semiconductor Physics Institute of Natural Science; TU Chemnitz; Reichenhainer Straße 70 09126 Chemnitz Germany
3. Department of Composite Materials and Materials Compounds; Faculty of Mechanical Engineering; TU Chemnitz; Erfenschlager Straße 73 09125 Chemnitz Germany