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

作者：Nara Kim, Seyoung Kee, Seoung Ho Lee, Byoung Hoon Lee, Yung Ho Kahng, Yong‐Ryun Jo, Bong‐Joong Kim, Kwanghee Lee · 发表于：Advanced Materials · 年份：2013 · DOI：10.1002/adma.201304611 · 被引用次数：1142 · 研究领域：Conducting polymers and applications、Advanced Sensor and Energy Harvesting Materials、Organic Electronics and Photovoltaics

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.