INFRARED COMPLEX ACTING PHOSPHOR BASED ON YTTRIUM, LANTHANUM, GADOLINIUM OXYSULFIDES, ACTIVATED BY ErIONS Russian patent published in 2017 - IPC C09K11/84 

Abstract RU 2614690 C2

FIELD: chemistry.

SUBSTANCE: infrared (IR) complex acting phosphor based on yttrium oxysulfide, activated by Er3+ ions and co-activated by Ce3+ ions, has a composition corresponding to the following empirical formula: , where Ln is one of La+3, Gd3+ ions; Me1 is one of the ions of the Periodic System group II elements - Ca2+, Sr2+, Ba2+; Me2 is one of the ions of groups IV (Ti4+, Zr4+, Si4+), or V (Nb5+, Ta5+) elements of the Periodic System; 0<x≤0.6425; 0.05≤y≤0.2; 0.00005≤z≤0.0025; 0.01≤d≤0.1; 0.005≤c≤0.05.

EFFECT: invention allows to increase the photostimulated quenching of Stokes IR ions luminescence without significant changes to the initial radiation source spectral composition, under the combined action of exciting IR radiation in ranges of 0,79-0,82 micrometers or 1,50-1,55 micrometers, and stimulating radiation in the range of 0,30-0,75 micrometers.

4 dwg, 1 tbl, 17 ex

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RU 2 614 690 C2

Authors

Manashirov Oshir Yaizgilovich

Zvereva Ekaterina Mikhajlovna

Vorobev Viktor Andreevich

Sinelnikov Boris Mikhajlovich

Dates

2017-03-28Published

2015-05-18Filed