Browsing by Author/Contributor "Graupner, W."

Now showing items 1-3 of 3

  • Geometry-Dependent Electronic Properties of Highly Fluorescent Conjugated Molecules 

    Yang, Shun-Chun; Graupner, W.; Guha, Suchi; Puschnig, P.; Martin, Christopher M., 1973-; Chandrasekhar, Holalkere R.; Chandrasekhar, Meera; Leising, G.; Ambrosch-Draxl, C.; Scherf, Ullrich (American Physical Society, 2000)
    We present a combined experimental/theoretical study of the electronic properties of conjugated para- phenylene type molecules under high pressure up to 80 kbar. Pressure is used as a tool to vary the molecular geometry ...

  • Planarity of para Hexaphenyl 

    Guha, Suchi; Graupner, W.; Resel, R.; Chandrasekhar, Meera; Chandrasekhar, Holalkere R.; Glaser, Rainer, 1957-; Leising, G. (American Physical Society, 1999)
    We present experimental and theoretical findings on the geometry of polycrystalline para hexaphenyl via Raman scattering. The planarity of the molecule is affected by hydrostatic pressure and temperature. Our studies ...

  • Ultrafast Formation of Nonemissive Species via Intermolecular Interaction in Single Crystals of Conjugated Molecules 

    Loi, M. A.; Mura, A.; Bongiovanni, G.; Cai, Qingsheng, 1966-; Martin, Christopher M., 1973-; Chandrasekhar, Holalkere R.; Chandrasekhar, Meera; Graupner, W.; Garnier, F. (American Physical Society, 2001)
    We investigate the influence of interchain interactions on the photoluminescence processes in a sexithiophene single crystal by applying hydrostatic pressure. We perform transient photoluminescence spectroscopy in the time ...