CNT/conducting polymer composite conductors impart high flexibility to textile electroluminescent devices

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Journal of Materials Chemistry, ISSN: 0959-9428, Vol: 22, Issue: 4, Page: 1598-1605

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Hu, Bin; Li, Dapeng; Manandharm, Prakash; Fan, Qinguo; Kasilingam, Dayalan; Calvert, Paul D
Royal Society of Chemistry (RSC); The Royal Society of Chemistry
Chemistry; Materials Science; CNT; conducting; polymer; composite; conductors; impart; high; flexibility; textile; electroluminescent; devices; Life Sciences; Physical Sciences and Mathematics; Social and Behavioral Sciences
article description
Highly transparent polyethylene terephthalate (PET) mesh fabrics were dip coated with carbon nanotubes (CNT) followed by inkjet printing with poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) to develop textile-based CNT/PEDOT:PSS composite conductors. These coated fabrics show a combination of conductivity, transparency and flexibility suitable for use in flexible displays. Sequential CNT and PEDOT:PSS coating greatly enhances the conductivity at high tensile strains without reducing the optical transparency. Electroluminescent (EL) devices using such textile-based CNT/PEDOT:PSS composite conductors as the front electrodes exhibit superior flexibility and mechanical robustness over their ITO-coated PET film-based counterparts under stretching and tight bending. © The Royal Society of Chemistry 2012.