A new approach to prepare highly conducting polyaniline films

K. S. Ryu, K. M. Kim, N. G. Park, Y. J. Park, J. H. Jeong, J. Joo, S. H. Chang

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


We have developed a new method for preparing conducting polyaniline films and investigated their chemical and physical properties by means of UV-Vis., FT-IR, and dc conductivity measurements. Conducting polyaniline films are prepared by casting directly a lithium salt containing non-conducting polyaniline solution. The dried films show high dc conductivity even without further treatment with HCl. Effects of lithium salts, such as LiBF4, LiPF6, and LiClO4, and their concentrations on dc conductivity are examined. The dc conductivity of Pani-LiBF4 film is found to be better than those of Pani-LiPF6 and Pani-LiClO4 films. The dc conductivity increases with lithium salt concentration ranging from 0.1M to 0.025M, and exhibits maximum value of ∼10-1 S/cm when 0.1M LiBF4 is doped.

Original languageEnglish
Pages (from-to)355-356
Number of pages2
JournalSynthetic Metals
Issue number1-3
Publication statusPublished - 2001 Mar 15


  • Conductivity
  • Infrared spectroscopy
  • Polyaniline and derivatives
  • Solution processing
  • UV-Vis. absorption

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry


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