Counterions for PEDOT
This chapter describes the effect of counterions on poly(3,4-ethylenedioxythiophene) (PEDOT). Counterions are present in all oxidized forms of PEDOT for charge balancing. Hence, they are also mentioned in the previous and following chapters, dealing with the charged form of PEDOT. This chapter aims to give an overview and to compare the effects of different counterions. Since chemistry and physics of electrochemical and chemical polymerization are different, the effect of counterions on these two techniques is discussed in two sections.