INFRARED LUMINOPHOR BASED ON YTTRIUM OXYSULPHIDE Russian patent published in 2010 - IPC C09K11/77 C09K11/84 

Abstract RU 2390535 C2

FIELD: chemistry.

SUBSTANCE: invention is meant for the chemical industry and can be used to protect bond paper and valuable documents, strict accounting forms, conformity marks of articles, excise and certification marks. An infrared luminophor having formula Y2-x-yErxCeyO2S, where x=0.20-0.45; 1·10-4≤y≤5·10-3 is described.

EFFECT: obtaining an infrared luminophor based on yttrium oxysulphide activated by erbium ions and co-activated by cerium ions, which has minimal visible anti-stokes luminescence when excited with laser radiation in the 0,90-0,98 mcm range and high intensity of stokes infrared luminescence in the 1,5-1,5 mcm range.

1 cl, 1 tbl, 12 ex

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RU 2 390 535 C2

Authors

Manashirov Oshir Jaizgilovich

Sinel'Nikov Boris Mikhajlovich

Vorob'Ev Viktor Andreevich

Dates

2010-05-27Published

2008-03-07Filed