Friday, May 27, 2011, 11:00 am — Bldg. 735 - Conf Rm B
Hierarchical organization of light-absorbing molecules is integral to natural light harvesting complexes and has been mimicked by elegant chemical systems. A challenge is to attain such spatial organization among nanoscale systems. I will describe the directed organization of colloidal quantum dots using block copolymer micelles and vesicles as the structural motifs. The spatially defined organization allowed photoinduced excited state interaction between the quantum dots and poly(3-hexylthiphene) that are partitioned into different domains of the micellar scaffolds. In the second part of this lecture, I will present the self-assembly of a fullerene/poly(3-hexylthiophene) dyad that leads to well-defined nanostructures in thin films. These self-assembling structures provide nanoscale model systems that allow us to illustrate how morphology and supramolecular interaction determine the efficiency of photoinduced charge generation.
Hosted by: Chang-Yong Nam
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