Printed, sub-3V digital circuits on plastic from aqueous carbon nanotube inks

Mingjing Ha, Yu Xia, Alexander A. Green, Wei Zhang, Mike J. Renn, Chris H. Kim, Mark C Hersam, C. Daniel Frisbie

Research output: Contribution to journalArticle

270 Citations (Scopus)

Abstract

Printing electronic components on plastic foils with functional liquid inks is an attractive approach for achieving flexible and low-cost circuitry for applications such as bendable displays and large-area sensors. The challenges for printed electronics, however, include characteristically slow switching frequencies and associated high supply voltages, which together impede widespread application. Combining printable high-capacitance dielectrics with printable high-mobility semiconductors could potentially solve these problems. Here we demonstrate fast, flexible digital circuits based on semiconducting carbon nanotube (CNT) networks and high-capacitance ion gel gate dielectrics, which were patterned by jet printing of liquid inks. Ion gel-gated CNT thin-film transistors (TFTs) with 50 μm channel lengths display ambipolar transport with electron and hole mobilities >20 cm2/V · s; these devices form the basis of printed inverters, NAND gates, and ring oscillators on both polyimide and SiO2 substrates. Five-stage ring oscillators achieve frequencies >2 kHz at supply voltages of 2.5 V, corresponding to stage delay times of 50 μs. This performance represents a substantial improvement for printed circuitry fabricated from functional liquid inks.

Original languageEnglish
Pages (from-to)4388-4395
Number of pages8
JournalACS Nano
Volume4
Issue number8
DOIs
Publication statusPublished - Aug 24 2010

Fingerprint

Carbon Nanotubes
digital electronics
Digital circuits
inks
Ink
Carbon nanotubes
plastics
carbon nanotubes
Plastics
printing
Printing
Liquids
Capacitance
Gels
liquids
capacitance
oscillators
gels
Ions
inverters

Keywords

  • Ambipolar
  • Carbon nanotube
  • Delay time
  • Flexible electronics
  • Ion gel
  • Printed electronics
  • Thin-film transistor

ASJC Scopus subject areas

  • Engineering(all)
  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

Ha, M., Xia, Y., Green, A. A., Zhang, W., Renn, M. J., Kim, C. H., ... Frisbie, C. D. (2010). Printed, sub-3V digital circuits on plastic from aqueous carbon nanotube inks. ACS Nano, 4(8), 4388-4395. https://doi.org/10.1021/nn100966s

Printed, sub-3V digital circuits on plastic from aqueous carbon nanotube inks. / Ha, Mingjing; Xia, Yu; Green, Alexander A.; Zhang, Wei; Renn, Mike J.; Kim, Chris H.; Hersam, Mark C; Frisbie, C. Daniel.

In: ACS Nano, Vol. 4, No. 8, 24.08.2010, p. 4388-4395.

Research output: Contribution to journalArticle

Ha, M, Xia, Y, Green, AA, Zhang, W, Renn, MJ, Kim, CH, Hersam, MC & Frisbie, CD 2010, 'Printed, sub-3V digital circuits on plastic from aqueous carbon nanotube inks', ACS Nano, vol. 4, no. 8, pp. 4388-4395. https://doi.org/10.1021/nn100966s
Ha M, Xia Y, Green AA, Zhang W, Renn MJ, Kim CH et al. Printed, sub-3V digital circuits on plastic from aqueous carbon nanotube inks. ACS Nano. 2010 Aug 24;4(8):4388-4395. https://doi.org/10.1021/nn100966s
Ha, Mingjing ; Xia, Yu ; Green, Alexander A. ; Zhang, Wei ; Renn, Mike J. ; Kim, Chris H. ; Hersam, Mark C ; Frisbie, C. Daniel. / Printed, sub-3V digital circuits on plastic from aqueous carbon nanotube inks. In: ACS Nano. 2010 ; Vol. 4, No. 8. pp. 4388-4395.
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