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“School of Physics”

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Paper   IPM / P / 15070
School of Physics
  Title:   Effects of Contents of Multiwall Carbon Nanotubes in Polyaniline Films on Optical and Electrical Properties of Polyaniline
  Author(s): 
1 . N. Bafandeh
2 . M.M. Larijani
3 . A. Shafiekhani
4 . M.R. Hantehzadeh
5 . N. Sheikh
  Status:   Published
  Journal: Chinese Physics Letters
  Vol.:  33
  Year:  2016
  Pages:   117801
  Supported by:  IPM
  Abstract:
We investigate the effects of different contents of multiwall carbon nanotubes (MWCNTs) on optical and electrical properties of polyaniline (PANI). The MWCNTs/PANI composites are deposited on glass substrates coated with indium tin oxide (ITO) by the spin-coating technique. The scanning electron microscopy shows that nanotubes are coated with the PANI layer and x-ray diffraction patterns show that all deposited composite films have an amorphous character. The analysis of a UV-vis spectrophotometer indicates the blue shift of the absorbance peak and a decrease in optical band gap value by the enhancement of the CNT content in the PANI matrix while the Urbach energy increases. The Raman spectrum shows the blue shift 1404�??1417 cm�??1 and photoluminescence spectra show an increase in the intensity of characteristic PANI peak at 436 nm with the increasing CNT content.

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