title: A photoactive porphyrin-based periodic mesoporous organosilica thin film.
abstract: A novel optoelectroactive system based on an oriented periodic mesoporous organosilica (PMO) film has been developed. A tetra-substituted porphyrin silsesquioxane was designed as a precursor, and the porphyrin macrocycles were covalently incorporated into the organosilica framework without adding additional silica sources, using an evaporation-induced self-assembly process. The synthesized PMO film has a face-centered orthorhombic porous structure with a 15 nm pore diameter. This large pore size enables the inclusion of electron-conducting species such as [6,6]-phenyl C61 butyric acid methyl ester in the periodic mesopores. Optoelectronic measurements on the resulting interpenetrating donor-acceptor systems demonstrate the light-induced charge generation capability and hole-conducting property of the novel porphyrin-based PMO film, indicating the potential of PMO materials as a basis for optoelectroactive systems.
authors.affiliation: Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU) , Butenandtstrasse 5-13, 81377 Munich, Germany.
authors.forename: Yan
authors.initials: Y
authors.lastname: Li
authors.forename: Florian
authors.initials: F
authors.lastname: Auras
authors.forename: Florian
authors.initials: F
authors.lastname: Löbermann
authors.forename: Markus
authors.initials: M
authors.lastname: Döblinger
authors.forename: Jörg
authors.initials: J
authors.lastname: Schuster
authors.forename: Laurence
authors.initials: L
authors.lastname: Peter
authors.forename: Dirk
authors.initials: D
authors.lastname: Trauner
authors.forename: Thomas
authors.initials: T
authors.lastname: Bein