Luminescence of alkali rare earth borates A3Ln(BO3)2 (A = Na, K; Ln = Eu, Tb)

Luminescence of alkali rare earth borates A3Ln(BO3)2 (A = Na, K; Ln = Eu, Tb)

Single crystals of a series of rare earth borates, A3Ln (BO3) (A = Na, K; Ln = Eu, Tb), were synthesized using a boric acid/hydroxide melt. The Na3Ln (BO3)2 borates crystallized in the monoclinic system with space group P21/n, and the K3Ln (BO3)2 borates crystallized in the orthorhombic system with...

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Veröffentlicht in:Solid state sciences 2023-02, Vol.138 (C)
Hauptverfasser: Hines, Adrian T., Morrison, Gregory, Yarbrough, Brandon J., Shustova, Natalia B., Jacobsohn, Luiz G., zur Loye, Hans-Conrad
Format: Artikel
Sprache:eng
Schlagworte:
Borates
Chemistry
Flux crystal growth
MATERIALS SCIENCE
Photoluminescence
Physics
Radioluminescence
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Zusammenfassung:Single crystals of a series of rare earth borates, A3Ln (BO3) (A = Na, K; Ln = Eu, Tb), were synthesized using a boric acid/hydroxide melt. The Na3Ln (BO3)2 borates crystallized in the monoclinic system with space group P21/n, and the K3Ln (BO3)2 borates crystallized in the orthorhombic system with space group Pnma. Here, the luminescence of these borates was investigated under ultraviolet and X-ray excitations for the first time. Radioluminescence (RL) measurements showed K3Tb(BO3)2 to be the brightest compound, with an integral intensity equal to 55% of the integral emission of Bi4Ge3O12 (BGO) powder.
ISSN:1293-2558