Publicado 4 números por año
ISSN Imprimir: 1093-3611
ISSN En Línea: 1940-4360
Indexed in
CHARACTERISTIC FEATURES OF THE PHOTOLUMINESCENCE OF ANODIC ALUMINA OXIDE IN THE α-PHASE
SINOPSIS
The results of investigation of the optical properties of porous anodic alumina oxide films modified by thermal annealing in air at a temperature of 1300°C are presented. It was found that intensive lines are observed in the red area of photoluminescence spectrum corresponding to the radiative transfer (2E → 4A2) of Mn4+ (678 nm) and Cr3+ (694 nm) ions that at high-temperature reconstruction of alumina oxide structure replace Al3+ ions in octahedral positions. Excitation of the luminescence of Mn4+ ions takes place in a wide strip with a maximum at 308 nm due to the absorption of radiation by oxygen vacancies located in the ion coordination sphere of these ions. It has been shown that photoluminescence in near UV and visible areas of spectrum is determined by oxygen vacancies (F and F2 type) in various charge conditions, the contribution of which is determined by the wavelength of exciting radiation.
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Gasenkova I.V., Mukhurov N.I., Zhvavyi S.P., Kolesnik E.E., Stupak А.P., Photoluminescent properties of nanoporous anodic alumina doped with manganese ions, Journal of Luminescence, 185, 2017. Crossref
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Mukhurov N. I., Gasenkova I. V., Zhvavyi S. P., Kolesnik E. E., Optical Characteristics of Porous Alumina Modified by Chromium Oxide, International Journal of Nanoscience, 18, 03n04, 2019. Crossref
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Mukhurov N I, Gasenkova I V, Zhang H, Yu G, A universal basic for creating microsensory devices those are sensitive to changing environmental conditions, Journal of Physics: Conference Series, 1347, 1, 2019. Crossref