Optimization of PEDOT:PSS linearity by sequential addtion process
발표자
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초록
내용
Poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) has gained immense attention as a next-generation transparent electrode. However, in order to realize its practical application, it is imperative that its optical and electrical properties should be improved. Generally, acid dopants are added to improve optical and electrical properties. In this study, however, we replaced the batch process used for manufacturing PEDOT:PSS with a sequential addition process to improve its optical and electrical properties efficiently without additional additives. In this process, the rate of polymerization and the structure of the product could be regulated by controlling the amount of monomer and catalyst. The proposed approach was used to increase the linearity of PEDOT and the proportion of PEDOT attached to the PSS chain to improve transmittance by 6.2% (73 to 79.2% at 100 ohm) and conductivity by 39.68% (446 to 623 S cm−1).