Complementary D flip-flops based on inkjet printed single-walled carbon nanotubes and zinc tin oxide

Bongjun Kim, Michael L. Geier, Mark C. Hersam, Ananth Dodabalapur

Research output: Contribution to journalArticle

7 Citations (Scopus)


We report clocked sequential complementary circuits that operate at 5 V in which the active semiconductors are deposited by inkjet printing. The p-channel thin-film transistors (TFTs) employ a network of predominantly semiconducting (>98%) single-walled carbon nanotubes and the n-channel TFTs employ amorphous zinc tin oxide formed from a printed precursor solution. The gate insulator material in both cases is zirconium oxide, deposited from solution. Edge triggered D flip-flops operate at clock speeds of 2.5 kHz. Our results suggest that this materials combination is promising for use in printed electronics.

Original languageEnglish
Article number6949101
Pages (from-to)1245-1247
Number of pages3
JournalIEEE Electron Device Letters
Issue number12
Publication statusPublished - Dec 1 2014



  • printed complementary circuits
  • printed electronics
  • single-walled carbon nanotube
  • thin-film circuits
  • thin-film memory
  • zinc tin oxide

ASJC Scopus subject areas

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

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