METHOD OF OBTAINING BLUE-EMITTING PHOSPHATE PHOSPHOR

摘要

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