掺杂Eu3+离子对Na2ZnGexSi1-xO4多晶光学性质的调制

IF 3.3 3区物理与天体物理 Q2 OPTICS

Journal of Luminescence Pub Date : 2025-05-24 DOI:10.1016/j.jlumin.2025.121316

K. Lemański, M. Babij

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引用次数: 0

摘要

采用固相反应法制备了Na2ZnGeO4和Na2ZnSiO4以及掺入Eu3+离子的Na2ZnGexSi1-xO4多晶的固溶体。采用粉末衍射仪XRD对其晶体结构进行了分析。测量了吸收光谱、激发光谱、发光光谱和发射衰减时间。所研究的材料具有较高的热稳定性。根据晶体对称性的不同，Eu3+的橙色/红色发射最大值不同，两种情况下都具有较高的颜色纯度。利用Kubelka-Munk方法获得了能量带隙。通过改变结构性质，可以调制这些化合物的能带隙，从而改变它们的光学性质。

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Modulation of the optical properties of Na2ZnGexSi1-xO4 polycrystals doped with Eu3+ ions

The Na₂ZnGeO₄ and Na₂ZnSiO₄ as well as the solid solution of the Na₂ZnGe_xSi_1-xO₄ polycrystals doped with Eu³⁺ ions were successfully synthesized with using the solid-state reaction method. The crystal structures were analyzed with using powder diffractometry XRD. Absorption, excitation, luminescence spectra and emission decay time were measured. Investigated material possess high thermal stability. Depending on the crystal symmetry, the Eu³⁺ emission possess different maxima of its orange/red emission, in both cases, with high color purity. Energy bandgaps were obtained with using the Kubelka-Munk method. By changing the structural properties it is possible to modulate the energy bandgaps of these compounds, and change their optical properties.

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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.