METHOD OF OBTAINING BLUE-EMITTING PHOSPHATE PHOSPHOR Russian patent published in 2018 - IPC C09K11/78 C09K11/81 

Abstract RU 2651028 C1

FIELD: chemistry.

SUBSTANCE: invention relates to the chemical industry and can be used in the manufacture of fluorescent lamps, light-emitting diodes, plasma display panels, cathode-ray tubes and medical devices for treatment of oncological diseases by photodynamic therapy. First, tributyl phosphate (TBP) is added to the europium oleate in a molar ratio Eu:TBP of 1:(6–7). Resulting mixture is fired in a closed muffle furnace at 700–750 °C for 3 hours. Resulting phosphor has the composition EuPO4:Eu2+ and the maximum glow intensity in the blue region of the spectrum.

EFFECT: method is simple and does not require a reducing atmosphere and high firing temperatures.

1 cl, 6 ex

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RU 2 651 028 C1

Authors

Steblevskaya Nadezhda Ivanovna

Belobeletskaya Margarita Vitalevna

Medkov Mikhail Azarevich

Dates

2018-04-18Published

2017-06-01Filed