The surface structure and cathodoluminescence (CL) spectra of thin films of Y2O3:Eu obtained by HF ion plasma sputtering were investigated by varying the activator concentration in the range of 1.0–7.5 mole%. The possibility of creating irregular solutions of yttrium and europium oxides and the structural features of the small and large crystallites that form the Y2O3:Eu film were demonstrated on the basis of the shape of the CL spectra at different activator concentrations. The critical distance for interaction between the Eu3+ ions at nodes with C2 and C3i point symmetry was estimated, and a mechanism of energy migration between these centers was proposed.
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Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 84, No. 6, pp. 1000–1005, November–December, 2017.
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Bordun, O.M., Bordun, I.O., Kukharskyy, I.Y. et al. Structure and Cathodoluminescent Properties of Y2O3:Eu Thin Films at Different Activator Concentrations. J Appl Spectrosc 84, 1072–1077 (2018). https://doi.org/10.1007/s10812-018-0589-5
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DOI: https://doi.org/10.1007/s10812-018-0589-5