High speeds complementary integrated circuits fabricated with all-printed polymeric semiconductors

Kang Jun Baeg, Dongyoon Khim, Dong Yu Kim*, Soon Won Jung, Jae Bon Koo, In Kyu You, Henry Yan, Antonio Facchetti, Yong Young Noh

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

100 Scopus citations


Inkjet-printed high speed polymeric complementary circuits are fabricated using an n-type ([poly{[N,N′-bis(2-octyldodecyl)-naphthalene-1,4,5,8- bis(dicarboximide)-2,6-diyl]-alt-5,5′-(2,2′-dithiophene)} [P(NDI2OD-T2), Polyera ActivInk N2200] and two p-type polymers [poly(3-hexylthiophene) (P3HT) and a dithiophene-based polymer (Polyera ActivInk P2100)]. The top-gate/bottom-contact (TG/BC) organic field-effect transistors (OFETs) exhibit well-balanced and very-high hole and electron mobilities (μFET) of 0.2-0.5 cm2/Vs, which were enabled by optimization of the inkjet-printed active features, small contact resistance both of electron and hole injections, and effective control over gate dielectrics and its orthogonal solvent effect (selection of poly(methyl methacrylate) and 2-ethoxyethanol). Our first demonstrated inkjet-printed polymeric complementary devices have been integrated to high-performance complementary inverters (gain >30) and ring oscillators (oscillation frequency ∼50 kHz). We believe that the operating frequency of printable organic circuits can be further improved more than 10 MHz by fine-tuning of the device architecture and optimization of the p- and n-channel semiconductor processing.

Original languageEnglish (US)
Pages (from-to)62-67
Number of pages6
JournalJournal of Polymer Science, Part B: Polymer Physics
Issue number1
StatePublished - Jan 1 2011


  • flexible electronics
  • inkjet printing
  • organic electronics
  • organic field-effect transistors

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Materials Chemistry


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