研究目的
To develop a facile synthesis method for Y3 (cid:2) xAl5O12:xCe3t yellow phosphor and fabricate phosphor-incorporated sapphire discs (PISD) for high-efficiency white light conversion using blue laser diodes.
研究成果
The study successfully developed a facile synthesis method for YAG:Ce phosphor and fabricated PISD for high-efficiency white light conversion using blue laser diodes. The PISD exhibited high stability and luminescence, with the reflection mode geometry proving more efficient for automotive applications. The technology offers a paradigm shift in white light production, with potential for compact and efficient lighting solutions.
研究不足
The study focuses on the synthesis and characterization of YAG:Ce phosphor and PISD, with limited discussion on the scalability of the fabrication process and the long-term stability of PISD under continuous operation.
1：Experimental Design and Method Selection:
The study employed an auto-combustion method for synthesizing YAG:Ce phosphor and fabricated PISD by incorporating the phosphor in epoxy resin sandwiched between two sapphire discs.
2：Sample Selection and Data Sources:
Y2O3, Ce(NO3)
3：6H2O, Al(NO3)9H2O, nitric acid, and urea were used as precursors. List of Experimental Equipment and Materials:
Bruker AXS D8 Advance X-ray diffractometer, Carl ZEISS EVO 18 scanning electron microscope, Edinburgh spectrometer, AvaSpec-ULS2048 star line versatile fiber-optic spectrometer, Konica Minolta LS-110 luminance meter.
4：Experimental Procedures and Operational Workflow:
The synthesis involved dissolving precursors, auto-combustion, calcination, and fabrication of PISD. PL and TRPL spectroscopy were used for characterization.
5：Data Analysis Methods:
XRD for crystalline structure, SEM for surface morphology, PL and TRPL for spectroscopic properties, and luminance meter for luminous efficiency.
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