From photocatalysis to optoelectronic switches [Elektronische Ressource] : studies of visible light active photoelectrodes based on surface-modified titanium dioxide / vorgelegt von Radim Beránek

From Photocatalysis to Optoelectronic Switches: Studies of Visible Light Active Photoelectrodes Based on Surface-Modified Titanium Dioxide Den Naturwissenschaftlichen Fakultäten der Friedrich-Alexander-Universität Erlangen-Nürnberg zur Erlangung des Doktorgrades vorgelegt von Radim Beránek aus D ěčín (Tschechien) Als Dissertation genehmigt von den Naturwissenschaftlichen Fakultäten der Universität Erlangen-Nürnberg Tag der mündlichen Prüfung: 13. Juli 2007 Vorsitzender der Promotionskommission: Prof. Dr. Eberhard Bänsch Erstberichterstatter: Prof. Dr. Horst Kisch Zweitberichterstatter: Dr. Ulrich Nickel Acknowledgements I wish to thank Prof. Dr. Horst Kisch for the supervision of this work and many fruitful discussions. I am particularly grateful for his advice, his trust in me, and his generous support of my work. Parts of this work would not have been possible without the help of several people. Dr. Marcin Janczarek and Dr. Shanmugasundaram Sakthivel are acknowledged for the synthesis of powders used in Chapter 3. Bernhard Neumann (Hahn-Meitner-Institut, Berlin) is gratefully acknowledged for surface photovoltage measurements, their interpretation and fruitful discussions. The work presented in Chapter 8 has profited immensely from discussions with Dr. Wojciech Macyk and Dr. Konrad Szaci łowski. I thank Dr.