Preparation of intrinsic flexible conductive PEDOT: PSS@ionogel composite film and its application for touch panel

Chuao Ma, Haixi Luo, Mingzhu Liu, Hua Yang, Hongliang Liu, Xiqi Zhang, Lei Jiang

Research output: Contribution to journalArticleResearchpeer-review

16 Citations (Scopus)


PEDOT:PSS-based conductive films have emerged as promising next-generation flexible transparent electrodes. However, the PEDOT:PSS-based electrodes suffer from poor electrical conductivity with extremely large mechanical deformation, owing to generation of defects, or partial exfoliation of PEDOT:PSS film from the underlying substrates. Herein, we report an intrinsic flexible conductive PEDOT:PSS@P[VEIm][DCA] composite film prepared by combining poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) with cross-linked poly(1-vinyl-3-ethylimidazolium dicyanamide) (P[VEIm][DCA]) ionogel, which exhibits high conductivity and transparency with negligible changes under harsh environmental conditions. The cross-linked P[VEIm][DCA] network can endow the composite film not only with excellent free-standing property, but also significantly enhanced electrical conductivity. We have successfully incorporated the PEDOT:PSS@P[VEIm][DCA] composite film into wearable touch panel device. We believe that the designed PEDOT:PSS@ionogel composite film is making an important step toward applications in flexible electronic and optoelectronic devices including touch panels, displays and so on.

Original languageEnglish
Article number131542
Number of pages8
JournalChemical Engineering Journal
Publication statusPublished - 1 Dec 2021
Externally publishedYes


  • Composite film
  • Ionogel
  • Touch panel

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