fig3

Figure 3. CVs of PT (A), PTT (B) and PDTT (C) modified Pt electrodes in monomer-free CH₂Cl₂-Bu₄NPF₆ (0.10 mol L^-1) at potential scan rates of 300-50 mV s^-1. Plots of redox peak current densities vs. potential scan rates: PT (D); PTT (E); PDTT (F). j_p is the peak current density and j_p,a and j_p,c denote the anodic and cathodic peak current densities, respectively. CVs: Cyclic voltammograms; PT: polythiophene; PTT: poly(thieno[3,2-b]thiophene); PDTT: poly(dithieno[3,2-b:2’,3’-d]thiophene).