Regensburg 2007 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 1: Supramolecular Aggregates

CPP 1.1: Invited Talk

Monday, March 26, 2007, 09:30–10:00, H37

Dynamic Processes in Supramolecular Nanoassemblies — •Christian von Borczyskowski — Center of nanostructured materials and analytics, TU Chemnitz, 09107 Chemnitz

Supramolecular aggregates of organic molecules have proven to be both biomimetic systems e. g. for photosynthetic reaction units and model systems for a development of model systems in bottom-up molecular electronic concepts. Due to that large range of properties such as functional groups and redox-potentials organic molecules are versatile building blocks blades of functionalized units. Complementary, semiconductor quantum dots of sizes in the nanometer range are in combination with quantum confinement tunable over a large range of broad band absorption combined with narrow band emission properties. This contribution will report the progress of the combination both of perspectives, namely chemical versatility of molecules and bandgap-tuning of semiconductor nanocrystals. Optical experiments on self-organized ensembles between dye molecules and CdSe nanocrystals will be in the center of this investigation. [1], [2].

[1] E. Zenkevich et al., J. Phys. Chem. B 109, 8679 (2005). [2] D. Kilin et al., J. Photochem. Photobiol. B (2006, in print).