Biodegradable Materials for Organic Field-Effect Transistors on a Paper Substrate

Cheng Jung Lee, Yu Chi Chang, Li Wen Wang, Yeong Her Wang

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


Paper-basedpentacene organic thin-film transistors (OTFTs) with spin-coated gelatin (G) stacked gate dielectric layers, the Au/pentacene/G/G matrix-embedded iron (FeG)/Al/paper structure, were fabricated. The proposed composite-stacked bio-dielectric layer can be implemented using solutions with the degradable biomaterials. These materials enable a large-area printing of use-and-throw devices. Control devices (Au/pentacene/G/Al and Au/pentacene/FeG/Al structure) were also fabricated for comparison. High-performance paper-based OTFT constructed from the stacked gate dielectric layer exhibited a carrier mobility of 8 cm 2 /Vs, an ON/OFF current ratio of approximately 10 3 , a subthreshold swing of 0.6 V/decade, and a threshold voltage of -1.4 V. These results are compatible to those OTFTs fabricated on other substrates. Therefore, the emerging biomaterial-based transistors on paper substrates may help in developing low-cost, environment-friendly devices.

Original languageEnglish
Article number8598734
Pages (from-to)236-239
Number of pages4
JournalIEEE Electron Device Letters
Issue number2
Publication statusPublished - 2019 Feb

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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