Highly Conductive PEDOT:PSS Nanofibrils Induced by Solution‐Processed Crystallization

Crystalline poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS) nanofibrils with an electrical conductivity of 4380 S cm-1 are formed via a solution process using H2SO4. The concentrated H2SO4 treatment induces a significant structural rearrangement of the PEDOT:PSS via a charge-separated transition mechanism, resulting in highly ordered and densely packed PEDOT:PSS nanofibrils. The PEDOT:PSS electrode shows a sheet resistance of 46 Ω sq-1 with 90% optical transmittance. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset.…

• GI
  Gwangju Institute of Science and Technology
• HC
  Heeger Center for Advanced Materials, Gwangju Institute of Science and Technology