Institute of Physical and Theoretical Chemistry, Goethe‐University Frankfurt, Max‐Von‐Laue‐Strasse 7, D‐60438 Frankfurt (Germany), Fax: (+49)?69?798?29709
Abstract:
Close to the edge : Photoexcitation of alizarin coupled to the surface of mesoporous TiO2 films leads to ultrafast electron transfer to the TiO2 conduction band (see picture). Complex kinetics after photoexcitation depend on the excitation energy, and indicate a position of the alizarin excited state close to the TiO2 conduction band edge, where the density of acceptor states is reduced.
