Tb3+掺杂Li4Zn(PO4)2荧光粉的光致发光研究

IF 1 4区化学 Q4 SPECTROSCOPY

Journal of Applied Spectroscopy Pub Date : 2025-09-12 DOI:10.1007/s10812-025-01989-9

Akinapally Naveen, M. Venkateswarlu, M. V. V. K. Srinivas Prasad, P. Tejeswara Rao, N. Chandana, M. Ravi, G. Giridha

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引用次数: 0

摘要

采用燃烧法制备了新型的Li4Zn(PO4)2:Tb3+绿色发光荧光粉。对晶体的物相、形状、形貌和发光特性进行了深入的研究，包括衰减曲线。在P21(4)空间基团下，Li4Zn(PO4)2:Tb3+荧光粉呈单斜斜结构。计算出晶体的平均尺寸约为80 nm。在250 nm激发下，在545 nm处观察到5D4→7F5跃迁引起的强绿色发光峰。结果表明，发射强度与掺杂浓度有关。

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Photoluminescence Studies on Tb3+-Doped Li4Zn(PO4)2 Phosphors

Novel Li₄Zn(PO₄)₂:Tb³⁺ green-light-emitting phosphors were synthesized using the combustion process. A thorough investigation was done on the crystal phase, shape, morphology, and luminescence properties, including decay curves. With the P21(4) space group, the Li₄Zn(PO₄)₂:Tb³⁺ phosphors showed a monoclinic structure. It was calculated that the average crystal size was about 80 nm. Under excitation at 250 nm, a strong green emission peak at 545 nm attributed to ⁵D₄ → ⁷F₅ transition was observed in the present host. It was found that the emission intensity depended on the dopant concentration.

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来源期刊

Journal of Applied Spectroscopy SPECTROSCOPY-

CiteScore

1.30

自引率

14.30%

发文量

145

审稿时长

2.5 months

期刊介绍： Journal of Applied Spectroscopy reports on many key applications of spectroscopy in chemistry, physics, metallurgy, and biology. An increasing number of papers focus on the theory of lasers, as well as the tremendous potential for the practical applications of lasers in numerous fields and industries.