STRUCTURE AND CATHODOLUMINESCENT PROPERTIES OF Y2O3:Eu THIN FILMS AT DIFFERENT CONCENTRATION OF ACTIVATORS
Abstract
The surface structure and cathodoluminescence (CL) spectra of thin films of Y2O3:Eu obtained by RF sputtering were investigated by varying the activator concentration in the range of 1.0-7.5 % by mole. Based on the shape of the CL spectra at different concentrations of the activator, the possibility of creating irregular solutions of yttrium and europium oxides and structural features of the small and large crystallites forming the Y2O3:Eu film were shown. The critical distance for the interaction between Eu3+ ions in nodes with C2 and C3i point symmetry was estimated and a mechanism of the energy migration between these centers was proposed.
About the Authors
O. M. Bordun
Ivan Franko L’viv National University
Russian Federation
Russian Federation
I. O. Bordun
Ivan Franko L’viv National University
Russian Federation
Russian Federation
I. Yo. Kukharskyy
Ivan Franko L’viv National University
Russian Federation
Russian Federation
Zh. Ya. Tsapovska
Ivan Franko L’viv National University
Russian Federation
Russian Federation
M. V. Partyka
Ivan Franko L’viv National University
Russian Federation
Russian Federation
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Review
For citations:
Bordun O.M., Bordun I.O., Kukharskyy I.Y., Tsapovska Zh.Ya., Partyka M.V. STRUCTURE AND CATHODOLUMINESCENT PROPERTIES OF Y2O3:Eu THIN FILMS AT DIFFERENT CONCENTRATION OF ACTIVATORS. Zhurnal Prikladnoii Spektroskopii. 2017;84(6):1000-1005. (In Russ.)
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