Electrical, optical and fluorescence percolations in P(VAc-co-BuA)/MWCNT composite films

ARDA E., KARA S., Pekcan Ö.

Phase Transitions, cilt.86, sa.10, ss.1017-1032, 2013 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 86 Sayı: 10
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1080/01411594.2012.751535
  • Dergi Adı: Phase Transitions
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1017-1032
  • Anahtar Kelimeler: Conductivity, Critical exponents, Fluorescence, Multiwalled carbon nanotube, Percolation, Poly(vinyl acetate-co-butyl acrylate)
  • Trakya Üniversitesi Adresli: Evet

Özet

Effects of multiwall carbon nanotube (MWCNT) addition on the electrical conductivities, optical transparencies and fluorescence emissions of poly(vinyl acetate-co-butyl acrylate) (P(VAc-co-BuA))/MWCNT composite films were studied. Optical transmission, fluorescence emission and two point probe resistivity techniques were used to determine the variations of the optical, fluorescence and electrical properties of the composites, respectively. Transmitted photon intensity (Itr), fluorescence emission intensity (Ifl) and surface resistivity (ρs) of the composite films were monitored as a function of MWCNT mass fraction (M) at room temperature. All these measured quantities of the composites were decreased by increasing the content of MWCNT in the composite. The conductivity and the optical results were attributed to the classical and site percolation theories, respectively. The fluorescence results, however, possessed both the site and classical percolation theories at low and high MWCNT content regions, respectively. © 2013 Copyright Taylor and Francis Group, LLC.