PHOTOCHROMIC COATINGS CONTAINING COPPER BROMIDE 2+ 2+NANOCRYSTALS AND ZN /CD AS CO-ACTIVATORS Dissertation zur Erlangung des akademischen Grades doctor rerum naturalium (Dr. rer. nat.) vorgelegt dem Rat der Chemisch-Geowissenschaftlischen Fakultät der Friedrich-Schiller-Universtät Jena von Dipl. Material Ing. Juliana Resende Meirelles geboren am 24.02.1977 in Goiânia – Brasilien Dekan: Prof. Dr. Peter Sedlacek Gutachter: Prof. Dr. Christian Ruessel PD Dr. rer. nat. Habil. Antje Kriltz Prof. Dr. Doris Erht Tag der öffentlichen Verteidigung: 09/06/2006 2 To my parents 3 Acknowledgements I would like to thank Prof. Dr. C. Rüssel who gave me the opportunity to work in his group at the Otto Schott Institut für Glaschemie and for the interesting research topic he provided me. I thank him for all scientific support and for the friendly and open relationship. I acknowledge him for running with enormous success a centre of excellence in glass research; it is an honour to be part of the group. In the same way, I thank Dr. M. Müller, my supervisor, for his attention and availability; he was always there when I needed. He helped me a lot specially at the end when he managed to work with me in a long distance relation (Jena/London) thanks to modern communication; emails and telephone calls.