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Autonomic Self‐Healing of PEDOT:PSS Achieved Via Polyethylene Glycol Addition
Author(s) -
Li Yang,
Li Xinda,
Zhang Shiming,
Liu Leslie,
Hamad Natalie,
Bobbara Sanyasi Rao,
Pasini Damiano,
Cicoira Fabio
Publication year - 2020
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.202002853
Subject(s) - materials science , pedot:pss , polyethylene glycol , self healing , polystyrene sulfonate , self healing material , bioelectronics , peg ratio , elongation , polymer , composite material , nanotechnology , conductive polymer , chemical engineering , ultimate tensile strength , medicine , alternative medicine , finance , pathology , economics , engineering , biosensor
Self‐healing electronic materials are of primary interest for bioelectronics and sustainable electronics. In this work, autonomic self‐healing of films obtained from mixtures of the conducting polymer poly(3,4‐ethylenedioxythiophene) doped with polystyrene sulfonate (PEDOT:PSS) and polyethylene glycol (PEG) is reported. The presence of PEG in PEDOT:PSS films decreases the elastic modulus and increases the elongation at break, thus leading to a softer material with enhanced self‐healing characteristics. In situ imaging of the cutting/healing process shows that the healing mechanism is likely due to flowing back of the material to the damaged area right after the cutting.