Ionic transition metal complex (iTMC) assemblies have emerged as efficient light-harvesting arrays and charge transport media for modern photovoltaic devices.  Among such systems, architectures containing electroactive polymer backbones with defined electronic properties are noteworthy, as they could allow for precisely controlled energy and charge transfer processes, while simultaneously leading to improved solar energy harvesting and charge separation characteristics.  In an effort to understand the electroactive polymer backbone effect on energy/charge transfer kinetics in such materials, we report on a series of TiO2 surface anchoring polyfluorene (PF)-based assemblies featuring Ru(II) polypyridyl complexes as pendants.  Ultrafast energy transfer (ca. 200 fs) occurs from the PF to the Ru(II) sites of the polymers, while strong amplified photoluminescence quenching effect indicates fast electron transfer along the pendant Ru(II) units and the corresponding antenna effect. Assemblies having other electroactive polymer building blocks are also discussed with the focus on establishing structure-property relationships in such architectures.

TiO<sub>2</sub> surface anchoring polyfluorene-based ionic transition metal complex polymers as light-harvesting assemblies

242nd National Meeting (2011)

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TiO2 surface anchoring polyfluorene-based ionic transition metal complex polymers as light-harvesting assemblies

TiO₂ surface anchoring polyfluorene-based ionic transition metal complex polymers as light-harvesting assemblies