Pr-Yb共掺YCa4O(BO3)3晶体生长及光谱特性研究

IF 1.7 4区材料科学 Q3 CRYSTALLOGRAPHY

Journal of Crystal Growth Pub Date : 2025-03-24 DOI:10.1016/j.jcrysgro.2025.128159

Jiapan Zheng , Hao Wu , Xuan Zhang , Jingyi Liu , Jiaru Wang , Zixuan Song , Ruiqing Gong , Yuxia Zhang , Wenjuan Han , Junhai Liu , Honghao Xu

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引用次数: 0

摘要

采用Czochralski法制备了3个Pr，Yb:YCa4O(BO3)3 （Pr,Yb:YCOB）晶体（Pr0.0075Yb0.0375Y0.955COB, Pr0.006Yb0.06Y0.934COB和pr0.005 yb0.075 y0.72 cob）。在室温（300 K）下测量并分析了偏振吸收光谱、偏振荧光光谱、荧光衰减曲线和能量传递过程，pr0.005 yb0.075 y0.992 cob晶体在449 nm处的吸收截面为2.64 × 10-20 cm2，值较大，Pr0.006Yb0.06Y0.934COB晶体在976 nm处的吸收截面为1.30 × 10-20 cm2，值也较大。通过偏振荧光光谱证实了Pr3+向Yb3+的能量转移。3种晶体的3P0能级衰减寿命分别为21.4 μs （Pr0.0075Yb0.0375Y0.955COB）、19.2 μs （Pr0.006Yb0.06Y0.934COB）和18.7 μs （Pr0.005Yb0.075Y0.92COB）。三种晶体的2F5/2能级的衰减寿命分别为1.90 ms、1.76 ms和1.62 ms。

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Growth and spectroscopic properties studies of Pr-Yb co-doped YCa4O(BO3)3 crystal

Three Pr,Yb:YCa₄O(BO₃)₃ (Pr,Yb:YCOB) crystals (Pr_0.0075Yb_0.0375Y_0.955COB, Pr_0.006Yb_0.06Y_0.934COB and Pr_0.005Yb_0.075Y_0.92COB) were first grown by the Czochralski method. The polarized absorption spectra, polarized fluorescence spectra, fluorescence decay curves and energy transfer process were measured and analyzed at room temperature (300 K). The absorption cross-section of the Pr_0.005Yb_0.075Y_0.92COB crystal is 2.64 × 10^-20 cm² at 449 nm, indicating a relatively large value, while that of the Pr_0.006Yb_0.06Y_0.934COB crystal is 1.30 × 10^-20 cm² at 976 nm, also representing a relatively large value. The energy transfer from Pr³⁺ to Yb³⁺ was confirmed through polarized fluorescence spectra. The decay lifetime of the ³P₀ energy level of the three crystals were fitted to be 21.4 μs (Pr_0.0075Yb_0.0375Y_0.955COB), 19.2 μs (Pr_0.006Yb_0.06Y_0.934COB) and 18.7 μs (Pr_0.005Yb_0.075Y_0.92COB), respectively. And the decay lifetime of the ²F_5/2 energy level of the three crystals were fitted to be 1.90 ms, 1.76 ms and 1.62 ms.

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来源期刊

Journal of Crystal Growth 化学-晶体学

CiteScore

3.60

自引率

11.10%

发文量

373

审稿时长

65 days

期刊介绍： The journal offers a common reference and publication source for workers engaged in research on the experimental and theoretical aspects of crystal growth and its applications, e.g. in devices. Experimental and theoretical contributions are published in the following fields: theory of nucleation and growth, molecular kinetics and transport phenomena, crystallization in viscous media such as polymers and glasses; crystal growth of metals, minerals, semiconductors, superconductors, magnetics, inorganic, organic and biological substances in bulk or as thin films; molecular beam epitaxy, chemical vapor deposition, growth of III-V and II-VI and other semiconductors; characterization of single crystals by physical and chemical methods; apparatus, instrumentation and techniques for crystal growth, and purification methods; multilayer heterostructures and their characterisation with an emphasis on crystal growth and epitaxial aspects of electronic materials. A special feature of the journal is the periodic inclusion of proceedings of symposia and conferences on relevant aspects of crystal growth.