RESONANCE RAMAN-STUDY OF A LOW-ENERGY GAP CONJUGATED POLYMER - POLYDITHIENO(3,4-B-3',4'-D)THIOPHENE

Resonant Raman scattering of polydithieno(3,4-b;3',4'-d)thiophene (PDTT') has been studied throughout the visible and near infrared region. Our results are consistent with the existence of a quasi bidimensional conjugated network, which is possibly responsible for the low energy gap in this polymer.