LUMINESCENT MATERIAL AND LIGHT-EMITTING DEVICE CONTAINING SAID LUMINESCENT MATERIAL Russian patent published in 2016 - IPC C09K11/78 C09K11/79 C09K11/55 F21S13/00 F21Y115/10 

FIELD: lighting.

SUBSTANCE: invention can be used in making light-emitting devices emitting ultraviolet radiation. Luminescent material has chemical formula (Y_1-xLu_x)₉LiSi₆O₂₆:Ln, where Ln is a trivalent rare-earth metal, chosen from Pr, Nd or mixtures thereof; 0.0 ≤ x ≤ 1.0. Luminescent material has a maximum emission of short-wave ultraviolet radiation - 200-280 nm when excited with radiation in ultraviolet spectral range. Light-emitting device has a discharge lamp equipped with a discharge vessel filled with gas, supporting discharge. At least part of wall of vessel is coated with said luminescent material.

EFFECT: invention provides improved bactericidal effect.

7 cl, 10 dwg, 4 ex