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
| Title | Year | Author | Number |
|---|---|---|---|
| YTTRIUM ORTHO-PHOSPHATE-BASED INFRARED LUMINOPHORE AND SYNTHESIS METHOD THEREOF | 2009 |
|
RU2434926C2 |
| COMPLEX ACTING PHOSPHOR BASED ON YTTRIUM, LANTHANUM, GADOLINIUM OXYSULFIDES, ACTIVATED BY ErAND YbIONS | 2015 |
|
RU2614687C2 |
| INFRARED COMPLEX ACTING PHOSPHOR BASED ON YTTRIUM, LANTHANUM, GADOLINIUM OXYSULFIDES, ACTIVATED BY ErIONS | 2015 |
|
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|
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|
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| ANTI-STOKES POLYMER MATERIAL FOR INFRARED LASER IMAGING | 2022 |
|
RU2786426C1 |
| LUMINESCENT POLYMER COMPOSITE FILM FOR IMAGING ULTRAVIOLET, VISIBLE AND INFRARED RADIATION | 2020 |
|
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|
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| METHOD FOR OBTAINING OXIDE AP-CONVERSION LUMINOPHERS | 2020 |
|
RU2753700C1 |
