Two new rare-earth oxyborates Ba₄BiTbO(BO₃)₄ and Ba_1.54Sr_2.46BiTbO(BO₃)₄ and luminescence properties of the Ba₄BiTb_1-xEu_xO(BO₃)₄ phosphors.

ABSTRACT: Single crystals of two new terbium oxyborates Ba₄BiTbO(BO₃)₄ and Ba_1.54Sr_2.46BiTbO(BO₃)₄ were obtained by the high-temperature solution method. They crystallize in the hexagonal P6₃/mmc group (Z = 2) with lattice parameters of a = 5.41865(9) Å, c = 26.3535(5) Å, V = 670.12(3) ų and a = 5.36534(19) Å, c = 26.0661(10) Å, V = 649.83(5) ų, respectively. Their crystal structures feature two kinds of layers: [Tb(BO₃)₂]_n^3n- formed by corner-sharing TbO₆ octahedra and BO₃ triangles, as well as [Bi(BO₃)₂O]_n

SUBMITTER: Chen X 

PROVIDER: S-EPMC10875415 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature