Synthesis and Characterization of CaYSi2Al2O2N5:Eu2+

IF 3 4区化学 Q2 CHEMISTRY, ANALYTICAL Luminescence Pub Date : 2025-03-03 DOI:10.1002/bio.70140

S. A. Fartode, Anoop P. Fartode, Tushar R. Shelke, S. J. Dhoble

引用次数: 0

Abstract

Eu²⁺-activated CaYSi₂Al₂O₂N₅ phosphors have been prepared by the modified three-step solid-state diffusion method. Prepared phosphors are characterized by XRD, SEM, photoluminescence techniques, and chromatic properties. Upon excitation at 330 nm, the Eu²⁺-activated CaYSi₂Al₂O₂N₅ phosphor shows a single strong broad emission at 455 nm in the blue region of the optical spectrum. The variation of intensity with dopant concentration was studied, and the quenching was observed at 1 mol%. The Stokes shift is also calculated. It was found that the obtained samples may be suitable for UV-excited white light-emitting diodes.

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CaYSi2Al2O2N5:Eu2+ 的合成与表征

采用改进的三步固态扩散法制备了Eu2+活化的CaYSi2Al2O2N5荧光粉。用XRD、SEM、光致发光技术和色性对制备的荧光粉进行了表征。在330 nm激发下，Eu2+激活的CaYSi2Al2O2N5荧光粉在光谱的455nm处显示出单一的强宽发射。研究了强度随掺杂浓度的变化规律，并在掺杂浓度为1mol %时观察到猝灭现象。还计算了斯托克斯位移。结果表明，所得样品可用于紫外激发白光发光二极管。

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来源期刊

Luminescence 生物-生化与分子生物学

CiteScore

5.10

自引率

13.80%

发文量

248

审稿时长

3.5 months

期刊介绍： Luminescence provides a forum for the publication of original scientific papers, short communications, technical notes and reviews on fundamental and applied aspects of all forms of luminescence, including bioluminescence, chemiluminescence, electrochemiluminescence, sonoluminescence, triboluminescence, fluorescence, time-resolved fluorescence and phosphorescence. Luminescence publishes papers on assays and analytical methods, instrumentation, mechanistic and synthetic studies, basic biology and chemistry. Luminescence also publishes details of forthcoming meetings, information on new products, and book reviews. A special feature of the Journal is surveys of the recent literature on selected topics in luminescence.