Structural and spectra studies of Dy3+-doped tellurite glass regulated by alkaline earth metals

IF 3.3 3区物理与天体物理 Q2 OPTICS

Journal of Luminescence Pub Date : 2025-05-09 DOI:10.1016/j.jlumin.2025.121288

Jiapeng Li , Chunsheng Sun , Yu Yue , Xue Wang

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Abstract

In this study, the effects exerted by diverse alkali earth metals concerning the physical properties, microstructure, and spectral properties of Dy³⁺ doped tellurite glass are deliberated. This structure has been inspected through FTIR and Raman spectroscopy. The discoveries reveal that [TeO₄] into numerous [TeO₃] and [TeO₃₊₁] polyhedral units when the alkali earth metal changes from Mg to Ba. The Judd-Ofelt strength parameters are attained and evaluated on the absorption spectra found. The emission intensity rises steadily as the alkali earth metal varies from Mg to Ba, which is associated with the local environment asymmetry surrounding Dy³⁺ ions. The optical parameters were calculated, and the radiation properties of this emission transition were investigated. The CIE chromaticity coordinates are all positioned within the warm white region. These results imply that the preparation of Dy³⁺ doped alkaline earth tellurite glass possesses the potential to function as an optimal material for white fiber lasers.

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碱土金属调控掺Dy3+碲酸盐玻璃的结构与光谱研究

本文研究了不同碱土金属对掺Dy3+碲酸盐玻璃的物理性能、微观结构和光谱性能的影响。该结构已通过FTIR和拉曼光谱进行了检测。结果表明，当碱土金属由Mg转变为Ba时，[TeO4]形成了大量的[TeO3]和[TeO3+1]多面体单元。得到了judd - felt的强度参数，并根据所得的吸收光谱对其进行了评价。随着碱土金属从Mg到Ba的变化，发射强度稳步上升，这与Dy3+离子周围局部环境的不对称性有关。计算了光学参数，研究了该发射跃迁的辐射特性。CIE色度坐标都位于暖白色区域内。这些结果表明，制备掺Dy3+的碱土碲酸盐玻璃具有作为白色光纤激光器的最佳材料的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Luminescence 物理-光学

CiteScore

6.70

自引率

13.90%

发文量

850

审稿时长

3.8 months

期刊介绍： The purpose of the Journal of Luminescence is to provide a means of communication between scientists in different disciplines who share a common interest in the electronic excited states of molecular, ionic and covalent systems, whether crystalline, amorphous, or liquid. We invite original papers and reviews on such subjects as: exciton and polariton dynamics, dynamics of localized excited states, energy and charge transport in ordered and disordered systems, radiative and non-radiative recombination, relaxation processes, vibronic interactions in electronic excited states, photochemistry in condensed systems, excited state resonance, double resonance, spin dynamics, selective excitation spectroscopy, hole burning, coherent processes in excited states, (e.g. coherent optical transients, photon echoes, transient gratings), multiphoton processes, optical bistability, photochromism, and new techniques for the study of excited states. This list is not intended to be exhaustive. Papers in the traditional areas of optical spectroscopy (absorption, MCD, luminescence, Raman scattering) are welcome. Papers on applications (phosphors, scintillators, electro- and cathodo-luminescence, radiography, bioimaging, solar energy, energy conversion, etc.) are also welcome if they present results of scientific, rather than only technological interest. However, papers containing purely theoretical results, not related to phenomena in the excited states, as well as papers using luminescence spectroscopy to perform routine analytical chemistry or biochemistry procedures, are outside the scope of the journal. Some exceptions will be possible at the discretion of the editors.