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Synthesis and luminescent properties of borate phosphates MBPO_5:R(II), M=Ca, Sr, Ba; R=Eu, Sm

机译:硼酸根磷酸盐MBPO_5:R(II)的合成和发光性能,M = Ca,Sr,Ba; R = Eu,Sm

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摘要

The alkaline-earth borate-phosphates activated by divalent europium and samarium ions (MBPO_5:R (II), M=Ca, Sr, Ba; R=Eu, Sm) were prepared by the solid phase reactions. Their luminescent properties were studied. The maximum of Eu(II) emission shifts to shorter wavelengths with increasing ionic radius of the alkaline-earth ion. This shift can be explained by a crystal field effect. The luminescent properties of borate-phosphates activated by samarium are strongly dependent on kind of cation and firing conditions.
机译:通过固相反应制备了被二价euro和mar离子(MBPO_5:R(II),M = Ca,Sr,Ba; R = Eu,Sm)活化的碱土金属硼酸盐磷酸盐。研究了它们的发光性质。随着碱土离子的离子半径增加,Eu(II)的发射最大值移至较短的波长。这种偏移可以用晶体场效应来解释。 sa活化的硼酸磷酸盐的发光性质在很大程度上取决于阳离子的种类和焙烧条件。

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