Spectroelectrochemical and electrical characterization of low bandgap polymers

In situ FT-IR spectroscopy, and d.c. and a.c. electrical measurements were used to characterize an electronically conducting polymer prepared from the electropolymerization of a bridged dithienyl monomer. Electronic absorption bands were observed during both n- and p- doping processes. The solid state data showed that the metal|polymer|metal diodes displayed no rectification although capacitance and loss data showed a strong frequency dispersion characteristic of a Schottky diode.