Physics of the Solid State
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Cold blue phosphors based on dysprosium-doped aluminum oxide
Baklanova I.V.1, Krasil’nikov V. N.1, Tyutyunnik A. P.1, Baklanova Y. V.1
1Institute of Solid State Chemistry, Russian Academy of Sciences, Ural Branch, Yekaterinburg, Russia
Email: baklanova_i@ihim.uran.ru

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Al2O3 : Dy3+ oxides with different color luminescence were synthesized using precursor technology. The phase composition and crystal structure of the obtained materials were established by X-ray powder diffraction analysis. The excitation and emission spectra, decay curves, thermal quenching of luminescence were studied. Under UV-excitation, the phosphors exhibit blue, purplish blue, and white emission depending on the dysprosium concentration and the annealing temperature of the Al1-xDyx(OH)(HCOO)2 precursor in air. Keywords: aluminum oxide, dysprosium, precursor synthesis method, luminescence, color coordinates.
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