研究目的
Investigating the luminescence properties of novel red-emitting phosphors Ba3B6Si2O16: Eu3+ for near-UV excited LED.
研究成果
Pure phase of triclinic Eu3+ doped Ba3B6Si2O16 red-emitting phosphors were synthesized. The phosphor emits red light with the chromaticity coordinates of (0.6460, 0.3534), quantum efficiency of 36.5% and the activation energy (ΔE) of 0.2121 eV. Ba3B6Si2O16: Eu3+ phosphor can be utilized as a potential red emitting candidate for near-UV chips excited LEDs.
研究不足
The technical and application constraints of the experiments, as well as potential areas for optimization, are not explicitly mentioned in the paper.
1：Experimental Design and Method Selection:
The phosphors were synthesized through traditional high temperature solid state reaction.
2：Sample Selection and Data Sources:
BaCO3 (A.R.), SiO2 (A.R.), H3BO3 (A.R.) and Eu2O3 (
3：999%) were used as raw materials. List of Experimental Equipment and Materials:
X-ray diffraction (XRD) using a Bruker D8, fluorescence spectrophotometer (model F-4600, Hitachi Ltd., Tokyo, Japan), FEI QUANTA 400 scanning electron microscope, UV?vis?NIR spectrophotometer (Shimadzu, UV-3600 PLUS), Quantaurus-QY (C11347, Hamamatsu).
4：Experimental Procedures and Operational Workflow:
The mixtures were sintered at 900 ℃ for 4 h in air.
5：Data Analysis Methods:
The crystal structure were identified by XRD, photoluminescence (PL) and excitation (PLE) spectra were tested by a fluorescence spectrophotometer.
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