Application of confocal laser scanning microscopy to investigation of micro crystals in transparent amorphous media: Photoluminescence tomography and spectroscopy of CdZnSSe crystallites in historical silicate glass

IF 3.2 3区材料科学 Q1 MATERIALS SCIENCE, CERAMICS Journal of Non-crystalline Solids Pub Date : 2024-11-09 DOI:10.1016/j.jnoncrysol.2024.123296

Vladimir A. Yuryev , Oleg V. Uvarov , Tatyana V. Yuryeva , Victor P. Kalinushkin

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Abstract

Recently, photoluminescence tomography based on the confocal laser scanning microscopy with two-photon excitation has been developed to study the distribution of point and extended defects in the bulk of ZnSe laser crystals. This article presents the use of the tomography to investigate luminescent micro inclusions in transparent amorphous media such as silicate glass. Studies of CdZnSSe crystals synthesized in a silicate glass melt have been carried out using the tomography with both two-photon and single-photon excitation of luminescence. Zn-rich glass manufactured in the 19th century has been found to contain micron-sized crystals of Cd

_{ξ}

_{1 - ξ}

_{ζ}

_{1 - ζ}

(

ξ \approx 0.5

ζ \approx 0.5

) of hexagonal crystal system exhibiting intense photoluminescence. The photoluminescence band of these crystals has been found to peak at about 2.1 eV (

\sim 590 nm

) at 300 K. Minor shifts in the maximum of bands and changes in their shape in individual crystals or at tomogram points within the crystal are associated with variations in their composition. Changes in the photoluminescence band shape and maximum due to the excitation of luminescence in CdZnSSe crystallites by laser radiation of different energies have also been observed in this study.

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应用共焦激光扫描显微镜研究透明无定形介质中的微晶体：历史硅酸盐玻璃中 CdZnSSe 晶体的光致发光层析成像和光谱分析

最近，基于双光子激发共焦激光扫描显微镜的光致发光层析技术被开发出来，用于研究 ZnSe 激光晶体块体中点状和扩展缺陷的分布。本文介绍了如何利用层析技术来研究透明非晶介质（如硅酸盐玻璃）中的发光微夹杂物。我们利用层析成像技术，通过双光子和单光子激发发光，对在硅酸盐玻璃熔体中合成的 CdZnSSe 晶体进行了研究。在 19 世纪制造的富锌玻璃中发现了微米大小的 CdξZn1-ξSζSe1-ζ （ξ≈0.5，ζ≈0.5）六方晶系晶体，这些晶体显示出强烈的光致发光。这些晶体的光致发光带在 300 K 时达到约 2.1 eV 的峰值（∼590 纳米）。晶体内单个晶体或层析点的光致发光带最大值的微小移动及其形状的变化与晶体成分的变化有关。本研究还观察到不同能量的激光辐射在 CdZnSSe 晶体中激发发光所导致的光致发光带形状和最大值的变化。

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来源期刊

Journal of Non-crystalline Solids 工程技术-材料科学：硅酸盐

CiteScore

6.50

自引率

11.40%

发文量

576

审稿时长

35 days

期刊介绍： The Journal of Non-Crystalline Solids publishes review articles, research papers, and Letters to the Editor on amorphous and glassy materials, including inorganic, organic, polymeric, hybrid and metallic systems. Papers on partially glassy materials, such as glass-ceramics and glass-matrix composites, and papers involving the liquid state are also included in so far as the properties of the liquid are relevant for the formation of the solid. In all cases the papers must demonstrate both novelty and importance to the field, by way of significant advances in understanding or application of non-crystalline solids; in the case of Letters, a compelling case must also be made for expedited handling.