Rapid fabrication of nanomaterial electrodes using digitally controlled electrokinetics

Na Liu; Wenfeng Liang; John D. Mai; Lianqing Liu; Gwo-Bin Lee; Wen J. Li

doi:10.1109/TNANO.2014.2298400

Rapid fabrication of nanomaterial electrodes using digitally controlled electrokinetics

Na Liu, Wenfeng Liang, John D. Mai, Lianqing Liu, Gwo-Bin Lee, Wen J. Li

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

16 Citations (Scopus)

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.

Original language	English
Article number	6704777
Pages (from-to)	245-253
Journal	IEEE Transactions on Nanotechnology
Volume	13
Issue number	2
DOIs	https://doi.org/10.1109/TNANO.2014.2298400
Publication status	Published - Mar 2014

Research Keywords

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

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title = "Rapid fabrication of nanomaterial electrodes using digitally controlled electrokinetics",

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. {\textcopyright} 2014 IEEE.",

keywords = "Conductive polymers, Microsensor, Microstructures, Nanostructures, Optically induced dielectrophoresis (ODEP), Optically induced electrokinetics (OEK)",

author = "Na Liu and Wenfeng Liang and Mai, {John D.} and Lianqing Liu and Gwo-Bin Lee and Li, {Wen J.}",

year = "2014",

month = mar,

doi = "10.1109/TNANO.2014.2298400",

language = "English",

volume = "13",

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TY - JOUR

T1 - Rapid fabrication of nanomaterial electrodes using digitally controlled electrokinetics

AU - Liu, Na

AU - Liang, Wenfeng

AU - Mai, John D.

AU - Liu, Lianqing

AU - Lee, Gwo-Bin

AU - Li, Wen J.

PY - 2014/3

Y1 - 2014/3

N2 - 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.

AB - 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.

KW - Conductive polymers

KW - Microsensor

KW - Microstructures

KW - Nanostructures

KW - Optically induced dielectrophoresis (ODEP)

KW - Optically induced electrokinetics (OEK)

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U2 - 10.1109/TNANO.2014.2298400

DO - 10.1109/TNANO.2014.2298400

M3 - RGC 21 - Publication in refereed journal

SN - 1536-125X

VL - 13

SP - 245

EP - 253

JO - IEEE Transactions on Nanotechnology

JF - IEEE Transactions on Nanotechnology

IS - 2

M1 - 6704777

ER -

Rapid fabrication of nanomaterial electrodes using digitally controlled electrokinetics

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Research Keywords

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