A quantative study of the charge-transfer between conjugated thiophene rings in vibrationally excited states

The charge transfer integral (CTI) between monomers in polythiophene is important for the electrical properties of the polymer. Torsional oscillations of the monomers are thought to play a key role in reducing the CTI, but the present study shows that other out-of-plane vibrational modes may play an even more important role between 10(-12) and 10(-14) See timescale on which charge-transfer occurs. (C) 2004 Published by Elsevier B.V.