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Tailoring the luminescent properties of Ca 9 La(PO 4 ) 5 (SiO 4 )F 2 :1 mol%Eu 3+ phosphor via doping of chloride, molybdate, vanadate, sulfate, and tungstate ions
Journal of Materials Science: Materials in Electronics ( IF 2.8 ) Pub Date : 2020-01-21 , DOI: 10.1007/s10854-020-02891-0
Chaitali M. Mehare , Yatish R. Parauha , Vibha Chopra , Sudeshna Ray , N. S. Dhoble , Chandan Ghanty , S. J. Dhoble

Abstract

We report here, the Ca9La(PO4)5(SiO4)F2:1 mol%Eu3+ phosphor via doping of chloride, molybdate, vanadate, sulfate, and tungstate ions that were synthesized by high-temperature solid-state reaction method. The phase formation was confirmed by X-ray diffraction (XRD) measurements. Morphological studies were performed using scanning electron microscopy. Photoluminescence and thermoluminescence properties of the synthesized phosphors were systematically studied. The PL excitation spectra of host material show peaks at 395 nm and 466 nm corresponding to 7F0 → 5L6 and 7F0 → 5D2 transitions of Eu3+, respectively. Further photoluminescence properties also studied after doping of molybdate, vanadate, sulfate, and tungstate ions in host material. When excited at 395 nm and 466 nm, PL emission spectra show emission band at around 595 nm and 616 nm, which attributes to 5D0 → 7F1 and 5D0 → 7F2 transitions, respectively. Further TL glow curves of all the synthesized phosphors were studied when exposed to γ-rays.



中文翻译:

通过掺杂氯离子,钼酸根,钒酸根,硫酸根和钨酸根离子来调节Ca 9 La(PO 4)5(SiO 4)F 2:1 mol%Eu 3+荧光粉的发光性质

摘要

我们在这里报告说,Ca 9 La(PO 45(SiO 4)F 2:1 mol%Eu 3+荧光粉是通过掺杂氯离子,钼酸根,钒酸根,硫酸根和钨酸根离子而掺杂的,这些离子是由高温固相合成的。状态反应法。通过X射线衍射(XRD)测量证实了相形成。使用扫描电子显微镜进行形态学研究。系统地研究了合成荧光粉的光致发光和热致发光性质。主体材料的PL激发光谱显示在395 nm和466 nm处的峰对应于7 F 0  →  5 L 67Eu 3+的F 0  →  5 D 2跃迁。在主体材料中掺杂钼酸根,钒酸根,硫酸根和钨酸根离子后,还研究了进一步的光致发光特性。当在395 nm和466 nm处激发时,PL发射光谱显示出在595 nm和616 nm附近的发射带,分别归因于5 D 0  →  7 F 15 D 0  →  7 F 2跃迁。研究了所有合成磷光体在暴露于γ射线时的TL发光曲线。

更新日期:2020-01-22
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