Electrical transport properties of single wall carbon nanotube/polyurethane composite based field effect transistors fabricated by UV-assisted direct-writing technology

Brahim Aissa, D. Therriault, D. Farahani, L. Lebel, A. El Khakani, B. Assa, D. Therriault, R. D. Farahani, L. L. Lebel, M. A. El Khakani

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

We report on the fabrication and transport properties of single-walled carbon nanotube (SWCNT)/polyurethane (PU) nanocomposite microfiber-based field effect transistors (FETs). UV-assisted direct-writing technology was used, and microfibers consisting of cylindrical micro-rods, having different diameters and various SWCNT loads, were fabricated directly onto SiO 2/Si substrates in a FET scheme. The room temperature dc electrical conductivities of these microfibers were shown to increase with respect to the SWCNT concentrations in the nanocomposite, and were about ten orders of magnitude higher than that of the pure polyurethane, when the SWCNT load ranged from 0.1 to 2.5wt% only. Our results show that for SWCNT loads 1.5wt%, all the microfibers behave as a FET with p-type transport. The resulting FET exhibited excellent performance, with an I on/I off ratio of 10 5 and a maximum on-state current (I on) exceeding 70νA. Correlations between the FET performance, SWCNTs concentration, and the microfiber diameters are also discussed.

Original languageEnglish
Article number115705
JournalNanotechnology
Volume23
Issue number11
DOIs
Publication statusPublished - 23 Mar 2012
Externally publishedYes

Fingerprint

Carbon Nanotubes
Polyurethanes
Single-walled carbon nanotubes (SWCN)
Field effect transistors
Transport properties
Carbon nanotubes
Technology
Composite materials
Nanocomposites
Electric Conductivity
Fabrication
Temperature
Substrates

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)

Cite this

Electrical transport properties of single wall carbon nanotube/polyurethane composite based field effect transistors fabricated by UV-assisted direct-writing technology. / Aissa, Brahim; Therriault, D.; Farahani, D.; Lebel, L.; El Khakani, A.; Assa, B.; Therriault, D.; Farahani, R. D.; Lebel, L. L.; El Khakani, M. A.

In: Nanotechnology, Vol. 23, No. 11, 115705, 23.03.2012.

Research output: Contribution to journalArticle

Aissa, Brahim ; Therriault, D. ; Farahani, D. ; Lebel, L. ; El Khakani, A. ; Assa, B. ; Therriault, D. ; Farahani, R. D. ; Lebel, L. L. ; El Khakani, M. A. / Electrical transport properties of single wall carbon nanotube/polyurethane composite based field effect transistors fabricated by UV-assisted direct-writing technology. In: Nanotechnology. 2012 ; Vol. 23, No. 11.
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