Abstract
The fundamental absorption band edge in the diffuse reflectance spectra can be represented as the superposition of bands described by the Fermi-Dirac distribution to determine the coordination state of element-containing structures formed on the surface of a matrix. The suggested procedure is compared with the other spectrum processing methods (the determination of the position of the absorption band edge and transformation in the Gurevich-Kubelka-Munk or (αhν)m coordinates). It was shown that the use of the Fermi-Dirac distribution allows not only experimental data to be correctly described but also separation of complex spectra to be performed with isolating the contribution of surface structures containing atom-modifiers in various coordination states.
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Original Russian Text © E.A. Sosnov, A.A. Malkov, A.A. Malygin, 2009, published in Zhurnal Fizicheskoi Khimii, 2009, Vol. 83, No. 4, pp. 746–752.
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Sosnov, E.A., Malkov, A.A. & Malygin, A.A. A new approach to processing electronic diffuse reflectance spectra. Russ. J. Phys. Chem. 83, 642–648 (2009). https://doi.org/10.1134/S0036024409040219
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DOI: https://doi.org/10.1134/S0036024409040219