Stretchable, transparent, and water-resistive touch panel using ion gel

Young Jun Son, Seunghwan Seo, Kyoung Yong Chun, Jin Woo Bae, Ho Jung Lee, Seunghyun Bae, Seunghyun Baik, Chang Soo Han

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Flexible touch panels have garnered significant attention for use in smart devices. However, their usability can be further improved. A touch panel that is highly stretchable and usable in water can be formed into complex shapes and used under various environments. Herein, we report a conductive polyvinyl chloride ion-gel sensor for a stretchable touch panel. This material is highly transparent (approximately 90%), highly stretchable (more than 250% strain), and maintains its mass and shape after 12 days (non-volatile). Because all components of the ion-gel device are insoluble in water, they can operate as a stretchable touch panel in underwater conditions. In this study, we fabricate a touch strap and a touch panel and then investigate their performances under various conditions (initial, stretched, and underwater conditions). The ion-gel device maintains its usability as a touch strap and touch panel even after it is soaked in water and subsequently dried.

Original languageEnglish
Article number113328
JournalSensors and Actuators, A: Physical
Publication statusPublished - 2022 Feb 1


  • Ion gel
  • Stretchable device
  • Touch panel
  • Water resistance

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering


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