PHOTOLUMINESCENT MATERIAL BASED ON COMPLEX BORATE Russian patent published in 2020 - IPC C09K11/63 C09K11/55 C09K11/78 

FIELD: chemistry.

SUBSTANCE: invention relates to chemical industry. Photoluminescent material based on complex borate doped with terbium relates to the spatial group of P-1 triclinic crystals, has composition Li₃Ba₄Sc₃B₈O₂₂:0.1Tb³⁺, lattice parameters a = 5.2231 Å, b = 8.5640 Å, c = 11.4209 Å, α = 73.362°, β = 78.566°, γ = 87.037° and emits light in range of 380 to 620 nm. Mixture of components corresponding to formula composition is prepared Li₃Ba₄Sc₃Tb_0.1B₈O₂₂, containing Li₂CO₃, BaCO₃, H₃BO₃, Sc₂O₃, Tb₄O₇. Obtained mixture is held at temperature of 600–650 °C for a day. Annealed product is grinded and reheated to 850–870 °C.

EFFECT: expanded range of photoluminescent materials based on complex borates.

1 cl, 3 dwg, 1 ex