Flexible low-voltage paper transistors harnessing ion gel/cellulose fiber composites

Xu Wang, Cunjiang Yu

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


Paper transistors are indispensable devices for paper-based electronic biosensing systems. Existing paper transistors mainly use paper as a mechanical support in a passive fashion. By taking advantage of the cellulose fibers in paper, here we report a transistor-in-paper where paper is employed as an essential part to allow for low-voltage operation, which addresses the long-standing challenge of high-voltage operation with existing paper transistors. Such a low-threshold voltage is because of the ion gel/cellulose fiber composite dielectric formed by modifying the paper with ion gels. We further developed paper-based inverters as examples of logic gates and an integrated tactile sensing mat based on a transistor array-enabled multiplexing device. The results collectively indicate that the ion gel-modified paper leads to a class of flexible, low-voltage transistors and integrated electronic devices, which hold promise in many applications.

Original languageEnglish (US)
Pages (from-to)940-948
Number of pages9
JournalJournal of Materials Research
Issue number8
StatePublished - Apr 28 2020

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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