ESR of protonated "emeraldine": Insulator to metal transition

  • Javadi H
  • Laversanne R
  • Epstein A
 et al. 
  • 3

    Readers

    Mendeley users who have this article in their library.
  • 66

    Citations

    Citations of this article.

Abstract

The temperature dependence of the X-band electron spin resonance for the emeraldine oxidation state of polyaniline is investigated under different protonation levels ranging from the unprotonated insulating emeraldine base to the metallic emeraldine hydrochloride. For all the samples studied, the signal is composed of two lines, one Lorentzian and the other Gaussian and broader. The different temperature dependences of the intensity of the Lorentzian and Gaussian signals for each sample allows one to distinguish between localized and mobile spins. Moreover the study of the linewidth of the Lorentzian signal as a function of the temperature and of the protonation level leads to a discussion on the nature of the conduction mechanism in polyaniline. © 1989.

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

  • H. H.S. Javadi

  • R. Laversanne

  • A. J. Epstein

  • R. K. Kohli

  • E. M. Scherr

  • A. G. MacDiarmid

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free