Evolution of polaron states into bipolarons in polypyrrole

The kinetics of polaron recombination into bipolarons in polypyrrole has been studied by optical-absorption spectroscopy on films doped in situ in an electrochemical cell. ERS studies confirm that the metastable states possess spin, while the stable states do not. The data reveal a slow evolution, c...

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Bibliographic Details
Published in:Physical review letters 1984-09, Vol.53 (10), p.1005-1008
Main Authors: KAUFMAN, J. H, COLANERI, N, SCOTT, J. C, STREET, G. B
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Properties and characterization
Structure, morphology and analysis
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Summary:The kinetics of polaron recombination into bipolarons in polypyrrole has been studied by optical-absorption spectroscopy on films doped in situ in an electrochemical cell. ERS studies confirm that the metastable states possess spin, while the stable states do not. The data reveal a slow evolution, consistent with polaron-diffusion rates limited by the mobility of the accompanying counterion.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.53.1005