1. Department of Chemistry; Middle East Technical University; 06800 Ankara Turkey
2. Department of Chemistry; Department of Polymer Science and Technology; The Center for Solar Energy Research and Application (GUNAM); Department of Micro and Nanotechnology; Middle East Technical University; 06800 Ankara Turkey
3. Department of Chemistry; Department of Polymer Science and Technology; The Center for Solar Energy Research and Application (GUNAM); Department of Biotechnology; Middle East Technical University; 06800 Ankara Turkey