研究目的
Investigating the influence of Tb3+ concentration on the luminescent properties of high silica glass.
研究成果
Tb3+ doped high silica glasses exhibit good scintillating properties with potential applications in extreme conditions. The optimal Tb3+ concentration for maximum emission intensity was found to be 0.2 mol/L. The study provides insights into the luminescent properties and decay kinetics of Tb3+ in high silica glass.
研究不足
The study is limited by the concentration quenching effect at higher Tb3+ concentrations, which reduces emission intensity. The preparation process is complex and requires precise control over conditions.
1：Experimental Design and Method Selection:
Tb3+-doped high silica glass was prepared by sintering porous glass. The process involved melting raw materials, phase separation, acid leaching to create porous glass, doping with Tb3+ ions, and sintering.
2：Sample Selection and Data Sources:
Samples with varying Tb3+ concentrations (
3：05 mol/L to 25 mol/L) were prepared. List of Experimental Equipment and Materials:
SEM (JXA-840, JEOL, Japan), X-ray diffractometer (D/max-Ultima IV), UV/VIS spectrometer (PerkinElmer Lambda 950), spectrofluorometer (RF-5301PC), fiber optical spectrometer (AvaSpec-2048), and others.
4：Experimental Procedures and Operational Workflow:
Detailed steps included sample preparation, doping, sintering, and spectral measurements.
5：Data Analysis Methods:
Density was measured by Archimedes' method, and luminescence properties were analyzed using various spectroscopic techniques.
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