Printable ion-gel gate dielectrics for low-voltage polymer thin-film transistors on plastic

Jeong Ho Cho, Jiyoul Lee, Yu Xia, Bongsoo Kim, Yiyong He, Michael J. Renn, Timothy P. Lodge, C. Daniel Frisbie

Research output: Contribution to journalArticle

850 Citations (Scopus)

Abstract

An important strategy for realizing flexible electronics is to use solution-processable materials that can be directly printed and integrated into high-performance electronic components on plastic. Although examples of functional inks based on metallic, semiconducting and insulating materials have been developed, enhanced printability and performance is still a challenge. Printable high-capacitance dielectrics that serve as gate insulators in organic thin-film transistors are a particular priority. Solid polymer electrolytes (a salt dissolved in a polymer matrix) have been investigated for this purpose, but they suffer from slow polarization response, limiting transistor speed to less than 100 Hz. Here, we demonstrate that an emerging class of polymer electrolytes known as ion gels can serve as printable, high-capacitance gate insulators in organic thin-film transistors. The specific capacitance exceeds that of conventional ceramic or polymeric gate dielectrics, enabling transistor operation at low voltages with kilohertz switching frequencies.

Original languageEnglish
Pages (from-to)900-906
Number of pages7
JournalNature materials
Volume7
Issue number11
DOIs
Publication statusPublished - 2008 Nov

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Printable ion-gel gate dielectrics for low-voltage polymer thin-film transistors on plastic'. Together they form a unique fingerprint.

  • Cite this

    Cho, J. H., Lee, J., Xia, Y., Kim, B., He, Y., Renn, M. J., Lodge, T. P., & Daniel Frisbie, C. (2008). Printable ion-gel gate dielectrics for low-voltage polymer thin-film transistors on plastic. Nature materials, 7(11), 900-906. https://doi.org/10.1038/nmat2291