Printable thin film supercapacitors using single-walled carbon nanotubes

Martti Kaempgen, Candace K. Chan, J. Ma, Yi Cui, George Gruner

Research output: Contribution to journalArticle

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Abstract

Thin film supercapacitors were fabricated using printable materials to make flexible devices on plastic. The active electrodes were made from sprayed networks of single-walled carbon nanotubes (SWCNTs) serving as both electrodes and charge collectors. Using a printable aqueous gel electrolyte as well as an organic liquid electrolyte, the performances of the devices show very high energy and power densities (6 W h/kg for both electrolytes and 23 and 70 kW/kg for aqueous gel electrolyte and organic electrolyte, respectively) which is comparable to performance in other SWCNT-based supercapacitor devices fabricated using different methods. The results underline the potential of printable thin film supercapacitors. The simplified architecture and the sole use of printable materials may lead to a new class of entirely printable charge storage devices allowing for full integration with the emerging field of printed electronics.

Original languageEnglish (US)
Pages (from-to)1872-1876
Number of pages5
JournalNano Letters
Volume9
Issue number5
DOIs
StatePublished - May 13 2009
Externally publishedYes

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ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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