Purification of PEDOT:PSS by Ultrafiltration for Highly Conductive Transparent Electrode of All-Printed Organic Devices.

Kim, Soyeon; Sanyoto, Bernardi; Park, Won-Tae; Kim, Seyul; Mandal, Saumen; Lim, Jong-Choo; Noh, Yong-Young; Kim, Jung-Hyun · Adv Mater · 2016

basic_science · Level V

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Abstract

A highly conductive, air stable and scalable poly(3,4-ethylenedioxythiophene) (PEDOT): poly(4-styrenesulfonate) (PEDOT:PSS) are prepared by using mass production ultrafiltration. By effectively removing excess PSS and various reaction impurities using repeated 100 nm pore membrane filtration, purified PEDOT:PSS exhibit conductivity as high as 2000 S cm<sup>-1</sup> .