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Dynamic structure of charge carrier in polyaniline by near-infrared excited resonance Raman spectroscopy

Engert, C and Umapathy, S and Kiefer, W and Hamaguchi, H (1994) Dynamic structure of charge carrier in polyaniline by near-infrared excited resonance Raman spectroscopy. In: Chemical physics letters, 218 (1-2). pp. 87-92.

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Official URL: http://dx.doi.org/10.1016/0009-2614(93)E1468-V

Abstract

New vibrational Raman features characteristic to the conductive form of polyaniline have been observed with the near-infrared excitation at 1047 nm. Based on an analogy with the resonance Raman spectrum of Michler's ketone in the lowest excited triplet (T-1) state, we consider these features as due to a dynamic structure of a diimino-1,4-phenylene unit in the polyaniline chain exchanging a positive charge very rapidly. This consideration directly leads to a conducting mechanism in which a positive charge migrates from one nitrogen to the other through the conjugated chain of polyaniline.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier Science.
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited: 01 Jun 2011 06:20
Last Modified: 01 Jun 2011 06:20
URI: http://eprints.iisc.ernet.in/id/eprint/36426

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