Study on Nanophosphors with Partially Polymerized SiO4 Tetrahedra Produced by Evaporation of Ca2Y8(SiO4)6O2: Eu Polycrystals

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Study on Nanophosphors with Partially Polymerized SiO4 Tetrahedra Produced by Evaporation of Ca2Y8(SiO4)6O2: Eu Polycrystals

August 26, 2021 Chemical and Material Science 0

Pulsed electron beam evaporation of micrometer-sized polycrystalline phosphors of the composition Ca2Y8(SiO4)6O2: Eu generated nanophosphors in the amorphous form for the first time. When particle size decreases from micro to nanodimensional, the Raman spectra is altered, and the prohibited band width of the samples rises. The features of spectrum luminescence in polycrystalline and amorphous states have been investigated. It was discovered that when phosphors move to a nanoamorphous state, their photoluminescence hue changes from red-orange (Eu3+) to blue (Eu2+).

Author (S) Details

M. G. Zuev
Institute of Solid State Chemistry, Ural Branch of Russian Academy of Sciences, Ekaterinburg, Russia and Ural Federal University (Named After First President of Russia B. N. Yeltsin), Ekaterinburg, Russia.

V. G. Il’ves
Institute of Electrophysics, Ural Branch of Russian Academy of Sciences, Ekaterinburg, Russia.

S. Yu. Sokovnin
Ural Federal University (Named After First President of Russia B. N. Yeltsin), Ekaterinburg, Russia and Institute of Electrophysics, Ural Branch of Russian Academy of Sciences, Ekaterinburg, Russia.

E. Yu. Zhuravleva
Ural Federal University (Named After First President of Russia B. N. Yeltsin), Ekaterinburg, Russia.

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