Flexible air-stable three-dimensional polymer field-effect transistors with high output current density

K. Nakayama, W. Ou-Yang, M. Uno, I. Osaka, K. Takimiya, J. Takeya

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Flexible air-stable short-channel polymer organic field-effect transistor (OFET) arrays with high saturated output current density are demonstrated by utilizing a novel solution-processed naphthobisthiadiazole (NTz) based donor-acceptor semiconducting polymer (PNTz4T) and designing a three-dimensional vertical channel structure with an extremely large ratio of channel width to channel length. The saturated mean field-effect mobility of 0.16 cm 2/V s of the short-channel polymer devices remains over one month resulting in air-stable OFET arrays with high on/off ratio over 106 and powerful current-density exceeding 0.3 A/cm2 under low operation voltage, both of which meet the requirements for such applications as driving organic light-emitting diodes in active-matrix displays.

Original languageEnglish
Pages (from-to)2908-2915
Number of pages8
JournalOrganic Electronics
Volume14
Issue number11
DOIs
Publication statusPublished - 2013 Jan 1
Externally publishedYes

Keywords

  • Air-stable
  • Flexible substrate
  • High current density
  • Polymer field-effect transistor
  • Vertical short channel (3D)

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry
  • Electrical and Electronic Engineering

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