Insulator-to-metal transition in polyaniline: Effect of protonation in emeraldine

A. J. Epstein, J. M. Ginder, Fulin Zuo, H. S. Woo, D. B. Tanner, A. F. Richter, M. Angelopoulos, W. S. Huang, A. G. MacDiarmid

Research output: Contribution to journalArticle

144 Citations (Scopus)

Abstract

The emeraldine base form of the polymer can be varied from insulating (σ ∼ 10-10 ohm-1 cm-1) to conducting (σ ∼ 100 ohm-1 cm-1) states through protonation. Based upon extensive magnetic, optical and transport data, we demonstrate that the resulting emeraldine salt is metallic with a finite density of states at the Fermi energy. The roles of a novel bipolaron-to-polaron lattice transition and phase segregation into conducting and non-conducting regions are discussed.

Original languageEnglish (US)
Pages (from-to)63-70
Number of pages8
JournalSynthetic Metals
Volume21
Issue number1-3
DOIs
StatePublished - Jan 1 1987
Externally publishedYes

Fingerprint

Gene Conversion
Protonation
Polyaniline
Fermi level
Transition metals
Polymers
Salts
transition metals
insulators
conduction
salts
polymers
polyaniline
energy

ASJC Scopus subject areas

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

Cite this

Epstein, A. J., Ginder, J. M., Zuo, F., Woo, H. S., Tanner, D. B., Richter, A. F., ... MacDiarmid, A. G. (1987). Insulator-to-metal transition in polyaniline: Effect of protonation in emeraldine. Synthetic Metals, 21(1-3), 63-70. https://doi.org/10.1016/0379-6779(87)90067-1

Insulator-to-metal transition in polyaniline : Effect of protonation in emeraldine. / Epstein, A. J.; Ginder, J. M.; Zuo, Fulin; Woo, H. S.; Tanner, D. B.; Richter, A. F.; Angelopoulos, M.; Huang, W. S.; MacDiarmid, A. G.

In: Synthetic Metals, Vol. 21, No. 1-3, 01.01.1987, p. 63-70.

Research output: Contribution to journalArticle

Epstein, AJ, Ginder, JM, Zuo, F, Woo, HS, Tanner, DB, Richter, AF, Angelopoulos, M, Huang, WS & MacDiarmid, AG 1987, 'Insulator-to-metal transition in polyaniline: Effect of protonation in emeraldine', Synthetic Metals, vol. 21, no. 1-3, pp. 63-70. https://doi.org/10.1016/0379-6779(87)90067-1
Epstein, A. J. ; Ginder, J. M. ; Zuo, Fulin ; Woo, H. S. ; Tanner, D. B. ; Richter, A. F. ; Angelopoulos, M. ; Huang, W. S. ; MacDiarmid, A. G. / Insulator-to-metal transition in polyaniline : Effect of protonation in emeraldine. In: Synthetic Metals. 1987 ; Vol. 21, No. 1-3. pp. 63-70.
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