1. Institut de Ciència de Materials de Barcelona (CSIC), Campus Universitari de Bellaterra, 08193 Cerdanyola del Vallès, Catalonia, Spain, Katholieke Universiteit Leuven, Laboratory of Photochemistry and Spectroscopy, and INPAC-Institute for Nanoscale Physics and Chemistry, Celestijnenlaan 200-F, 3001 Heverlee, Belgium, Service de Chimie des Matériaux Nouveaux, Université de Mons, 20, Place du Parc, B-7000 Mons, Belgium, Department of Physics, Chemistry and Biology, Linköping University, SE-581 83 Linköping...