Photoinduced charge transfer between Indoline D149 and porous ZnO detected in transient absorption Egmont Rohwer, Christian Litwinski, Kerstin Strauch, Nadine Heming, Christoph Richter, Tebello Nyokong, Derck Schlettwein and Heinrich Schwoerer EPJ Web of Conferences, 41 (2013) 04011 Published online: 13 March 2013 DOI: 10.1051/epjconf/20134104011