期刊
JOURNAL OF NON-CRYSTALLINE SOLIDS
卷 605, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jnoncrysol.2023.122169
关键词
Borate-bismuth glasses; Luminescence; Rare-earth ions; Aluminum fluoride; CIE diagram
The B2O3-Bi2O3-AlF3 glass system doped with Eu3+, Tb3+, Tm3+ and triply doped with Eu3+/Tm3+/Tb3+ ions in different molar ratios were successfully synthesized. The glass matrix consists of [BO3] and [BO4] structural units, and AlF3 was also present. The luminescence spectra intensity increased with the presence of 10 mol% of AlF3, and the emitted color can be tunable by varying the excitation wavelength and sample composition. The proposed glass system shows potential as color-tunable phosphors in LEDs.
The B2O3-Bi2O3-AlF3 glass system doped with Eu3+, Tb3+, Tm3+ and triply doped with Eu3+/Tm3+/Tb3+ ions in different molar ratios were successfully synthesized. Glass transition and crystallization temperatures were examined by Differential Scanning Calorimetry (DSC) measurements. X-ray Diffraction (XRD) confirmed the amorphous character of the samples. Fourier Transform Infrared Spectroscopy (FTIR) revealed that the glass matrix consists of [BO3] and [BO4] structural units, while X-ray Photoelectron Spectroscopy (XPS) confirmed the presence of AlF3. An increase in luminescence spectra intensity was detected by Photoluminescence Spectroscopy (Pl), due to the presence of 10 mol% of AlF3. The RE3+ ions embedded in the glass matrix can be simultaneously excited by a single UV light. According to the CIE results the emitted color can be tunable by varying the excitation wavelength and sample composition. The presented results confirm that the proposed glass system could be a candidate for color-tunable phosphors in LEDs.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据