초록 |
Although the post-treatment of PEDOT:PSS films with strong acid induces dramatic conductivity improvement, it has been still a great challenge to fabricate highly conductive PEDOT:PSS films on plastic substrates due to the substrate damage. Herein, we reports an efficient solution process to improve electrical conductivities of PEDOT:PSS films (>1000 S/cm) for flexible bio-electronic interfaces. We confirmed that the post-treatment with proper solution formulations enabled the conductivity enhancement in PEDOT:PSS films, which could be attributed to both structural rearrangement in PEDOT and removal of unnecessary PSS. Moreover, we found that our method is compatible with various plastic substrates such as polyimide and poly(ethylene terephthalate). |