fig7

Figure 7. Time-transmittance curves of PT (A), PTT (B) and PDTT (C) in monomer-free CH₃CN-Bu₄NPF₆ (0.1 mol L^-1) at different intervals. PT: Polythiophene; PTT: poly(thieno[3,2-b]thiophene); PDTT: poly(dithieno[3,2-b:2’,3’-d]thiophene).