Please use this identifier to cite or link to this item: https://physrep.ff.bg.ac.rs/handle/123456789/111
Title: Luminescence of the B<sup>2</sup>Σ<sup>+</sup>-X<sup>2</sup>Σ <sup>+</sup> band system of AlO during plasma electrolytic oxidation of aluminum
Authors: Stojadinović, Stevan 
Perić, M.
Petković-Benazzouz, Marija 
Vasilić, Rastko 
Kasalica, Bećko 
Belča, Ivan 
Radić-Perić, J.
Keywords: Aluminum;B Σ -X Σ luminescence spectrum of AlO 2 + 2 +;Plasma electrolytic oxidation (PEO);Plasma temperature
Issue Date: 30-Nov-2011
Journal: Electrochimica Acta
Abstract: 
Two broad luminescence peaks with clearly pronounced structure, extending from roughly 18,200 to 18,800 cm-1 and from 19,000 to 19,700 cm -1 with the maxima at approximately 18,500 and 19,500 cm -1, respectively, are obtained during plasma electrolytic oxidation of aluminum. They are assigned to the v′-v″ = -1 and -2 band sequences of the B2Σ+- X2Σ+ emission transition of AlO. The measured intensity distributions are employed to estimate the population of vibrational levels of the upper electronic state, and consequently the mean plasma temperature. The composition of plasma containing aluminum and oxygen under assumption of thermodynamic equilibrium is calculated in the temperature up to 11,000 K in order to explain the appearance of the observed spectral features. © 2011 Elsevier Ltd. All Rights Reserved.
URI: https://physrep.ff.bg.ac.rs/handle/123456789/111
ISSN: 0013-4686
DOI: 10.1016/j.electacta.2011.08.110
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