We have developed a new synthetic methodology towards tellurophene-containing conjugated organic materials. This involves palladium-catalyzed cross-coupling reactions between functionalized tellurophenes and aromatic halides. Recently, we succeeded in making tellurophene-based donor-acceptor type low band-gap conjugated polymer, which has not been obtained by standard Stille or Suzuki coupling reactions. Because of its eccentric properties from tellurium, we have been trying to understand its optoelectronic properties with the help of theoretical calculations from theory and computation group in CFN. We would further fabricate and optimize solar cell devices from it.
Chang-Yong Nam, Yang Qin, Young S. Park, Htay Hlaing, Xinhui Lu, Benjamin M. Ocko, Charles T. Black, and Robert B. Grubbs, Photo-Cross-Linkable Azide-Functionalized Polythiophene for Thermally Stable Bulk Heterojunction Solar Cells, Macromolecules 45, 2338, 2012.
Young S. Park, Jonathan R. Widawsky, Maria Kamenetska, Michael L. Steigerwald, Mark S. Hybertsen, Colin Nuckolls, and Latha Venkataraman, Frustrated Rotations in Single-Molecule, Journal of the American Chemical Society 131, 10820, 2009.
Young S. Park, Adam C. Whalley, Maria Kamenetska, Michael L. Steigerwald, Mark S. Hybertsen, Colin Nuckolls, and Latha Venkataraman, Contact Chemistry and Single-Molecule Conductance: A Comparison of Phosphines, Methyl Sulfides, and Amines, Journal of the American Chemical Society 129, 15768, 2007.
Latha Venkataraman, Young S. Park, Adam C. Whalley, Colin Nuckolls, Mark S. Hybertsen, and Michael L. Steigerwald, Nano Letters 7, 502, 2007.