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Highly Conductive PEDOT:PSS Nanofibrils Induced by Solution‐Processed Crystallization
Author(s) -
Kim Nara,
Kee Seyoung,
Lee Seoung Ho,
Lee Byoung Hoon,
Kahng Yung Ho,
Jo YongRyun,
Kim BongJoong,
Lee Kwanghee
Publication year - 2014
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201304611
Subject(s) - pedot:pss , materials science , crystallization , transmittance , poly(3,4 ethylenedioxythiophene) , sheet resistance , electrical conductor , conductivity , conductive polymer , nanotechnology , chemical engineering , optoelectronics , polymer , layer (electronics) , composite material , chemistry , engineering
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 H 2 SO 4 . The concentrated H 2 SO 4 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.