Figure 9

(a) Absorption spectra and film picture of the poly–3n+/ITO film at different redox states (Γ = 3.0 × 10−9 mol/cm2). (b) Current assumption and (c) transmittance changes monitored at λ = 1550 nm as a function of time during the electrochromic switching of the poly–3n+/ITO film (Γ = 2.0 × 10−8 mol/cm2) between −0.1 and +0.3 V in 0.1 M Bu4NClO4/CH3CN. The interval is 65 s.