Влияние химического состава пористой матрицы и атмосферы спекания на люминесцентные свойства висмутсодержащих композиционных материалов

Оптика и спектроскопия Pub Date : 2023-01-01 DOI:10.21883/os.2023.01.54542.4040-22

М. А. Гирсова, Т. В. Антропова, Г. Ф. Головина, И. Н. Анфимова, Л. Н. Куриленко

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Abstract

The spectral-optical and luminescence properties of bismuth-containing composite materials based on matrices of high-silica porous glasses are investigated. Luminescence spectra, luminescence excitation spectra, infrared transmission spectra (8000–4000 cm-1) depending on the composition of different types of matrices and sintering atmosphere (nitrogen, argon) of bismuth-containing composite materials were examined. It was found that the samples of bismuth-containing composite materials are characterized by UV (λem = 350 nm), blue-green (λem = 410–550 nm) and orange-red (λem = 600–725 nm) luminescence due to the presence of various bismuth active centers. The analysis of the spectra obtained by near-infrared spectroscopy demonstrates the formation of Bi2+ dimers of bismuth and bismuth active centers associated with silicon.

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多孔基质和蒸发大气的化学成分对彩色复合材料的发光特性的影响

研究了以高硅多孔玻璃为基体的含铋复合材料的光谱光学和发光性能。研究了含铋复合材料的发光光谱、发光激发光谱、红外透射光谱(8000 ~ 4000 cm-1)与不同类型基体组成和烧结气氛(氮气、氩气)的关系。结果表明，由于各种铋活性中心的存在，含铋复合材料样品具有紫外(λem = 350 nm)、蓝绿色(λem = 410 ~ 550 nm)和橙红色(λem = 600 ~ 725 nm)发光特征。近红外光谱分析表明，铋的Bi2+二聚体和与硅相关的铋活性中心的形成。

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Оптика и спектроскопия

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