研究目的
To improve the efficiency of the red emission for phosphor glass materials by fabricating a new glass system of calcium-alumino-silicate doped with Sm2O3 and co-doped with Sm2O3 ± Eu2O3.
研究成果
The CaAlSi glass samples co-doped with Sm2O3 ± Eu2O3 are a preferred candidate for use as the red component in RGB systems for LED display applications due to the ability to improve the efficiency of the red emission.
研究不足
The high concentrations of dopants (0.75 mol% to 1 mol%) show nearly constant emission intensity due to stronger interactions among the ions.
1：Experimental Design and Method Selection
The glass samples were prepared using the melt quenching method. The optical properties were studied using UV–vis absorption spectra and excitation energy.
2：Sample Selection and Data Sources
The glass samples were doped with Sm2O3 and co-doped with Sm2O3 ± Eu2O3. The chemical compositions were mixed carefully in ceramic crucibles.
3：List of Experimental Equipment and Materials
Electronic balance, ceramic crucibles, electric furnace, stainless steel moulds, silicon carbide, X'Pert diffractometer, Lamda 28 UV–Vis spectrometer, Fluorescence spectrometer, FLS980 Fluorescence and Phosphorescence Lifetime Spectrometer.
4：Experimental Procedures and Operational Workflow
The mixtures were melted in an electric furnace at 1250 °C, poured into pre-heated stainless steel moulds, annealed at 450 °C for 2 h, and then cooled to room temperature. The glasses were cut and polished for optical measurements.
5：Data Analysis Methods
The absorption spectra, excitation and emissions spectra, quantum yield, and lifetime were measured and analyzed.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
