研究目的
To fabricate and characterize Dy3+ doped perovskite type SrLa2Al2O7 nanophosphors for cool white light emission in single-phase phosphor converted WLEDs.
研究成果
Dy3+ doped perovskite type SrLa2Al2O7 nanocrystals emitting characteristic cool white light were successfully fabricated via solution combustion route. The nanophosphors exhibit promising photoluminescence properties, making them potential candidates for single-phase phosphor converted WLEDs.
研究不足
The study focuses on the synthesis and characterization of Dy3+ doped SrLa2Al2O7 nanophosphors, with potential limitations in scalability and practical application in WLEDs without further optimization.
1：Experimental Design and Method Selection
Solution Combustion Technique (SCT) was used for the synthesis of SrLa2Al2O7:Dy3+ nanophosphors, utilizing urea as a fuel. The method is simple, single step, and highly efficient.
2：Sample Selection and Data Sources
Analytical grade chemicals from Sigma Aldrich were used as oxidants, including Sr(NO3)2, La(NO3)3.6H2O, Al(NO3)3.9H2O, and Dy(NO3)3.6H2O.
3：List of Experimental Equipment and Materials
Rigaku Ultima IV Powder X-Ray Diffractometer, JEOL JSM-6510 SEM, TECNAI G2 FEI TEM, NICOLET iS50 FT-IR Spectrometer, HITACHI F-7000 fluorescence spectrophotometer, SHIMADZU UV-3600 PLUS UV-Vis-NIR spectrophotometer.
4：Experimental Procedures and Operational Workflow
The homogenous mixture of precursors was heated at 500?C in a muffle furnace, leading to auto-ignition and formation of the nanophosphors. The product was then sintered at 1350?C for 3 h.
5：Data Analysis Methods
Rietveld refinement technique with GSAS software for crystal structure analysis, Scherrer’s equation for crystallite size determination, and MATLAB software for chromaticity coordinates evaluation.
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
