AI Article Synopsis
- - The study focused on Eu-doped aluminosilicate oxyfluoride glass made using a melt-quenching method, employing various analytical techniques like X-ray diffraction and photoluminescence spectroscopy to examine its properties.
- - Researchers observed that europium (Eu) ions were reduced in the glass prepared in air, and the intensity of their emission spectra changed depending on the incident beam wavelength.
- - The investigation also included an analysis of the fluorescence lifetimes of Eu ions and discussed energy transfer processes and emission mechanisms related to these ions within the glass.
Article Abstract
Eu-doped aluminosilicate oxyfluoride glass prepared a melt-quenching method was investigated using X-ray diffraction, absorption spectroscopy, X-ray fluorescence spectrometry, photoluminescence spectroscopy and fluorescence decay curves. We found that the reduction of Eu to Eu ions occurred in the glass prepared in air. The emission spectra showed that the intensity of 4f5d → 4f transition of Eu ions varied with increasing incident beam wavelength. Meanwhile, the fluorescence lifetimes of Eu: D → F monitored at 617 nm in the glass change with the variation of excitation wavelength. The energy transfer between Eu and Eu and the emission mechanisms of Eu ions in the glass were also discussed.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10405638 | PMC |
| http://dx.doi.org/10.1039/d3ra03689h | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Spectral properties and self-reduction of Eu to Eu in aluminosilicate oxyfluoride glass.
RSC Adv
August 2023
School of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 China
Article Synopsis
- - The study focused on Eu-doped aluminosilicate oxyfluoride glass made using a melt-quenching method, employing various analytical techniques like X-ray diffraction and photoluminescence spectroscopy to examine its properties.
- - Researchers observed that europium (Eu) ions were reduced in the glass prepared in air, and the intensity of their emission spectra changed depending on the incident beam wavelength.
- - The investigation also included an analysis of the fluorescence lifetimes of Eu ions and discussed energy transfer processes and emission mechanisms related to these ions within the glass.
Hybridization Engineering of Oxyfluoride Aluminosilicate Glass for Construction of Dual-Phase Optical Ceramics.
Adv Mater
March 2023
State Key Laboratory of Luminescent Materials and Devices, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China.
The construction of transparent ceramics under mild conditionsand standard atmospheric pressure has great scientific and technological potential; however, it remains difficult to achieve when conventional ceramic sintering techniques are used. Herein, a mild strategy for constructing dual-phase optical ceramics with high crystallinity (>90%) based on the stepped dual-phase crystallization of hybridized aluminosilicate glass is presented. Theoretical and experimental studies reveal that the hybridization of the glass system enables a new balance between the glass-forming ability and crystallization and can overcome the uncontrolled devitrification phenomenon during the dense crystallization of glass.
View Article and Find Full Text PDFSimultaneous Tailoring of Dual-Phase Fluoride Precipitation and Dopant Distribution in Glass to Control Upconverting Luminescence.
ACS Appl Mater Interfaces
August 2019
College of Physics and Energy , Fujian Normal University, Fuzhou , Fujian 350117 , China.
In situ glass crystallization is an effective strategy to integrate lanthanide-doped upconversion nanocrystals into amorphous glass, leading to new hybrid materials and offering an unexploited way to study light-particle interactions. However, the precipitation of Sc-based nanocrystals from glass is rarely reported and the incorporation of lanthanide activators into the Sc-based crystalline lattice is formidably difficult owing to their large radius mismatch. Herein, it is demonstrated that lanthanide dopants with smaller ionic radii can act as nucleating agents to promote the nucleation/growth of KScF nanocrystals in oxyfluoride aluminosilicate glass.
View Article and Find Full Text PDFStructural Origins of RF/NaRF Nanocrystal Precipitation from Phase-Separated SiO-AlO-RF-NaF Glasses: A Molecular Dynamics Simulation Study.
J Phys Chem B
April 2019
State Key Laboratory of Silicon Materials & School of Materials Science and Engineering , Zhejiang University, Hangzhou 310027 , China.
Oxyfluoride glass-ceramics with RF or NaRF (R: rare earth elements) nanocrystals are considered as favorable hosts for luminescence applications. In this work, we utilized large-scale molecular dynamics (MD) simulations with effective partial charge potentials to study a series of oxyfluoride glasses that are of interest to the precipitation of RF or NaRF nanocrystals as previous experiment results suggested. The results show that phase separation exists in all glass compositions with fluoride-rich regions made up of R, Na, and F and oxide-rich regions consisting of aluminosilicate networks.
View Article and Find Full Text PDFLuminescent properties of Tb3+ and Gd3+ ions doped aluminosilicate oxyfluoride glasses.
Spectrochim Acta A Mol Biomol Spectrosc
November 2011
Department of Chemistry and Chemical Engineering, Hunan University of Arts and Science, No. 170 dongting Road, Changde 415000, Hunan, People's Republic of China.
Tb(3+) and Gd(3+) ions doped lithium-barium-aluminosilicate oxyfluoride glasses have been prepared. The transmission, emission and excitation spectra were measured. It has been found that those Tb(3+)-doped lithium-barium-aluminosilicate oxyfluoride glasses exhibit good UV-excited luminescence.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!