Ukrainian Journal of Physical Optics

Number 3, Volume 6, 2005

Doping-Induced Absorption in Polyphenylacetylene Films
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Aksimentyeva O.I., Konopelnyk O.I., Stakhira P.Y. and Tsizh B.R.

The processes of donor and acceptor doping of polyphenylacetylene (PPA) films electrochemically obtained on transparent electrodes have been studied. It has been shown that donor n-doping of the PPA by lithium leads to formation of free charge carriers in the conjugated polymer chain, which cause a doping-induced absorption in the long-wave region. Under acceptor p-doping of the PPA films by iodine, the doping-induced optical absorption is observed in the short-wave region. It results from the complexes of charge transfer between the PPA and iodine.

Key words: polyphenylacetylene, electrochemical preparation, optical spectra, donor and acceptor doping, absorption bands.

PACS: 61.43 Dq, 68.60.Dv, 71.20.Rv

doi 10.3116/16091833/6/3/114/2005

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