Rapid fabrication of nanomaterial electrodes using digitally controlled electrokinetics

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Na Liu
  • Wenfeng Liang
  • John D. Mai
  • Lianqing Liu
  • Gwo-Bin Lee

Detail(s)

Original languageEnglish
Article number6704777
Pages (from-to)245-253
Journal / PublicationIEEE Transactions on Nanotechnology
Volume13
Issue number2
Publication statusPublished - Mar 2014

Abstract

We present here a new process for fabricating polymeric electrodes based on a composite solution of conductive polyaniline (PANI) particles and multiwalled carbon nanotubes (MWCNTs) using an optically induced electrokinetics (OEK) chip. Based on this method:1) polymeric electrodes with different geometric sizes can be fabricated within 1-3 min by projecting digitally generated images into an OEK chip; 2) polymeric electrodes with different electrical conductivities can be fabricated from composite solutions with different MWCNT concentrations; and 3) fabricated polymeric electrodes are used to assemble MWCNTs sensing elements via dielectrophoresis (DEP) and used for detecting ethanol. The electrical conductivity of these nanomaterial-based polymeric electrodes and the DEP-assembled sensor is analyzed before, during, and after exposure to ethanol. In summary, digitally controlled electrokinetics is demonstrated to be a novel method for rapidly fabricating polymeric sensing electrodes. © 2014 IEEE.

Research Area(s)

  • Conductive polymers, Microsensor, Microstructures, Nanostructures, Optically induced dielectrophoresis (ODEP), Optically induced electrokinetics (OEK)

Citation Format(s)

Rapid fabrication of nanomaterial electrodes using digitally controlled electrokinetics. / Liu, Na; Liang, Wenfeng; Mai, John D.; Liu, Lianqing; Lee, Gwo-Bin; Li, Wen J.

In: IEEE Transactions on Nanotechnology, Vol. 13, No. 2, 6704777, 03.2014, p. 245-253.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review