Single-Molecule Nanomaterials from π-Stacked Side-Chain Conjugated Polymers


  • This research was supported by the Air Force Office of Scientific Research (Grant no. F49620-03-1-0162), the NSF (CTS-0437912) and in part by the Boeing–Martin Professorship Endowment.


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Single-molecule semiconductor nanomaterials with π-stacked structures in solution and the solid state are prepared from a polystyrene backbone and densely tethered π-conjugated polyquinoline side chains (see figure). Highly structured optical absorption spectra and exclusive broad, structureless yellow excimer emission in toluene solutions confirm the π-stacked structures and collective optical properties of the side-chain conjugated polymers.