infrared millimeter terahertz waves scientific conferences

We report on the development of a light harvesting architecture based on a conductive metal organic framework (MOF) photosensitizer. The Zn2TTFTB MOF was deposited directly onto TiO2 and its structure was confirmed via pXRD and EXAFS measurements. Interfacial charge transfer dynamics were investigated using time-resolved THz spectroscopy. Sub-600 fs injection was observed for both the Zn2TTFTB-TiO2 and the TTFTB ligand-sensitized analog that lacks the extended MOF architecture. Rapid injection of a photo-generated electron is accompanied by facile migration of the corresponding hole away from the interfacial region leading to much longer recombination times in the Zn2TTFTB-TiO2 sample.