Author/Authors :
Chandross، نويسنده , , Fabrice M. and Mazumdar، نويسنده , , S. and Liess، نويسنده , , M. and Lane، نويسنده , , P.A. and Vardeny، نويسنده , , Z.V. and Hamaguchi، نويسنده , , M. and Yoshino، نويسنده , , K.، نويسنده ,
Abstract :
We investigate theoretically and experimentally the effects of (2,5) chemical substitution on the optical absorption in the phenylene-based conjugated polymers. The effects of the substituents on the optical absorption spectrum are weak. The 3.7 eV band is predicted to be polarized predominantly along the polymer chain axis. This prediction is confirmed experimentally.
Keywords :
Semi-empirical models and model calculations , poly(phenylene vinylene) and derivatives , Optical absorption and emission spectroscopy
