Molecular orientation in electrodeposited polypyrrole filmsстатья

Информация о цитировании статьи получена из Scopus, Web of Science
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Дата последнего поиска статьи во внешних источниках: 10 августа 2018 г.

Работа с статьей

[1] Syugaev A. V., Maratkanova A. N., Smirnov D. A. Molecular orientation in electrodeposited polypyrrole films // Journal of Solid State Electrochemistry. — 2018. — Vol. 22, no. 7. — P. 2127–2134. The molecular arrangement in electrodeposited polypyrrole films was studied by means of linear dichroism in the near-edge Xray absorption fine structure (NEXAFS) spectra measured at the K absorption edges of carbon and nitrogen. It has been found that the change of the exciting radiation incidence from normal to grazing leads to an increase in the intensity of π*-related resonances with simultaneous decrease in the intensity of σ*-related resonances in the spectra. Similar changes in the spectra measured for both absorption edges indicate a pronounced conjugation of π-bonds in the polypyrrole chains in the grown films. Preferential in-plane orientation of pyrrole rings relative to the substrate surface is observed for all the deposited films. The linear dichroism is more pronounced at the initial stages of deposition (2D growth) than at later stages characterized by cauliflower-like morphology of the grown film. [ DOI ]

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