Effects of matrix composition and Eu³⁺ concentration on luminescence properties of phosphate glass

• Veröffentlicht in: Functional Materials
• Datum: 2013
• ISSN: 1027-5495
• Hauptverfasser: Polisadova, E.F., Othman, H.A., Lisitsyn, V.M.
• Format: Artikel
• Sprache: Englisch
• Veröffentlicht: НТК «Інститут монокристалів» НАН України 2013
• Schlagworte: Characterization and properties
• Online Zugang: https://nasplib.isofts.kiev.ua/handle/123456789/120079
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Zitieren: Effects of matrix composition and Eu³⁺ concentration on luminescence properties of phosphate glass / E.F. Polisadova, H.A. Othman, V.M. Lisitsyn // Functional Materials. — 2013. — Т. 20, № 3. — С. 290-294. — Бібліогр.: 17 назв. — англ.

The effect of Li₂O and ZnO content and Eu³⁺ ion concentration in the glass composition on the decay of luminescence was investigated in phosphate glasses of composition P₂O₅—Li₂O—ZnO . The emission was excited by high-current electron beam of nanosecond duration with an electron energy of 200 eV. It was found that in the range of 0.5—3 wt.% Eu₂O₃ the decay time depends weakly on europium ion concentration. The increase of ZnO (with parallel reduction of Li₂O ) leads to a shortening the decay time of luminescence in the bands at 592 and 614 nm of 2.1 to 1.5 ms. This is due to the symmetry reduction of the Eu³⁺ ion environment. The rise of luminescence signal with duration of some microseconds in the kinetics of the luminescence peak at 614 nm was observed.