1. Department of Chemistry; Middle East Technical University; 06800 Ankara Turkey
2. Institut für Physikalische und Theoretische Chemie; Universität Regensburg; 93053 Regensburg Germany
3. Department of Biotechnology; Middle East Technical University; 06800 Ankara Turkey
4. Department of Polymer Science and Technology; Middle East Technical University; 06800 Ankara Turkey
5. The Center for Solar Energy Research and Application (GÜNAM); Middle East Technical University; 06800 Ankara Turkey