Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 134, Issue 1, Pages 122-126Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2008.04.021
Keywords
Multiwalled carbon nanotubes; Polyaniline; Electrical conductivity; Composite nanofibers
Funding
- Ministry of Science & Technology (MOST)
- Korea Science and Engineering Foundation (KOSEF) in Korea
- National Research Foundation of Korea [R16-2006-054-01001-0, 핵06A3603, 과06A1507] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Conducting composite nanofibers were fabricated from a mixture of multiwalled carbon nanotubes (MWNTs) and a polyaniline (PANi)/poly(ethylene oxide) (PEO) blend using an electrospinning process. We observed a surprising transition in the electrical conductivity of the conducting composite nanofibers while measuring the I-V characteristics of the nanofibers aligned on an electrode when they were exposed to an applied high voltage. We believe that this unexpected transition is closely related to the self-heating of the MWNTs incorporated into the conducting polymer. This type of self-heating method will be very helpful in enhancing the electrical properties of nanoscale conducting composite fibers. (C) 2008 Elsevier B.V. All rights reserved.
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