Fig. 5From: Synthesis, spectroscopic, electrochemical and photophysical properties of high band gap polymers for potential applications in semi-transparent solar cellsa–c The Cyclic Voltammetry (CV) spectra for all synthesized polymers, and d Energy level diagram for all synthesized polymers. The small redox wave at about − 1.1 V vs. Fc+/Fc in the CV of P(TRI-co.-DISULF) corresponds to the reduction of adventitious trace oxygen in the DMSO solvent as previously reported [46]. The irreversible oxidative processes observed in the CVs in a and b are likely due to the oxidation of adventitious water in the DMSO solventBack to article page