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The 1.5 eV Polaron Transition of Polyaniline: The Spectra Electrochemical Resolution into Sub-Bands

Published online by Cambridge University Press:  25 February 2011

Hong Liao  and
Sze Cheng Yang
Hong Liao
Affiliation:
Department of Chemistry, University of Rhode Island, Kingston, RI 02881.
Sze Cheng Yang
Affiliation:
Department of Chemistry, University of Rhode Island, Kingston, RI 02881.
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Extract

Polyaniline is an interesting conducting polymer because of its chemical stability and its reversible electrochromic response. A typical cyclic voltammogram [1, 2] in acidic solution shows two voltametric waves marked as d and h in Fig. 1. When the electrochemical potential of the polymer is between these two waves the polymer is a green colored electrical conductor. The polymer changes into a colorless insulator at -0.2 V and changes into a blue insulator when is oxidized beyond +0.7 V related to saturate calomel electrode (SCE).

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 247: Symposium N – Electrical, Optical, and Magnetic Properties of Organic Solid State Materials , 1992 , 741
Copyright
Copyright © Materials Research Society 1992

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References

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