J. Gierschner et al., ABSORPTION, FLUORESCENCE AND LIGHT-SCATTERING OF OLIGOTHIOPHENE AND OLIGOPHENYLENEVINYLENE NANOAGGREGATES, Synthetic metals, 84(1-3), 1997, pp. 529-530
Molecular orientations in oligothiophene (Tn) - and oligo- (p-phenylen
evinylene) (Pn) - nanoaggregates are investigated by time-resolved flu
orescence anisotropies and polarized light scattering. Tn- and unsubst
ituted Pn-molecules align parallel to each other, but not the substitu
ted Pn's. Electronic absorption and fluorescence spectra of the orient
ed systems are strongly altered against the monomers and the fluoresce
nce quantum yields are strongly reduced.