Physics – Condensed Matter – Materials Science
Scientific paper
2012-01-04
Journal of Chemical Physics 111, 4756 (1999)
Physics
Condensed Matter
Materials Science
8 pages, 8 pictures, http://jcp.aip.org/resource/1/jcpsa6/v111/i10/p4756_s1
Scientific paper
10.1063/1.479238
The electronic structure of the conjugated polymer, polyaniline, has been studied by resonant and nonresonant X-ray emission spectroscopy using synchrotron radiation for the excitation. The measurements were made on polyaniline and a few doped (protonated) phases for both the carbon and nitrogen contents. The resonant X-ray emission spectra show depletion of the {\pi} electron bands due to the selective excitation which enhances the effect of symmetry selection rules. The valence band structures in the X-ray emission spectra attributed to the {\pi} bands show unambiguous changes of the electronic structure upon protonation. By comparing to X-ray absorption measurements, the chemical bonding and electronic configuration is characterized.
Agui A.
Butorin Sergei M.
Guo Jian-Heng
Magnuson Martin
Monkman A. P.
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