材料科学
光致发光
拉曼光谱
分析化学(期刊)
色度
无定形固体
粉末衍射
吸收光谱法
光谱学
锂(药物)
傅里叶变换红外光谱
掺杂剂
吸收(声学)
发射光谱
兴奋剂
谱线
光学
化学
结晶学
复合材料
光电子学
医学
物理
色谱法
量子力学
天文
内分泌学
作者
P. Sai Dinesh,Mohit Kumar,Y.C. Ratnakaram
标识
DOI:10.1016/j.infrared.2023.105029
摘要
The melt quenching technique achieved the synthesis of multiple samples of glasses were prepared, each containing Dy3+ ions as dopants and containing alkali and alkaline earth metals. Subsequently, several physical properties of these samples were assessed. The current investigation covers the characterization of Dy3+ doped lithium tetraborate glasses with varying compositions using powder X-Ray Diffraction (PXRD), FTIR, FT-Raman spectroscopy, optical absorption, and photoluminescence spectroscopy. The X-ray powder diffraction (PXRD) analysis indicates that the glass specimens exhibit an amorphous structure. The elemental composition of these materials has been determined using EDS. The utilization of FTIR and FT-RAMAN spectra is employed for the purpose of identifying distinct structural groups. J-O theory is employed to obtain J-O Intensity parameters and radiative parameters based on the absorption spectra. The photoluminescence spectra were utilized to determine the experimental branching ratios (βexp), effective bandwidths (Δʋeff), and stimulated emission cross-sections (σP) for all of the glass matrices that were prepared. The bi-exponential decay profiles of the 4F9/2 state were obtained and analyzed for all glass specimens containing Dy3+ ions. The lifetimes (τ) and quantum efficiencies (η) were determined by measuring decay profiles. Emission spectra are used to calculate correlated color temperatures (CCTs), CIE chromaticity coordinates and yellow-to-blue intensity ratios (Y/B).
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