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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >A novel Ce3+ activated Lu3MgAl3SiO12 garnet phosphor for blue chip light-emitting diodes with excellent performance
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A novel Ce3+ activated Lu3MgAl3SiO12 garnet phosphor for blue chip light-emitting diodes with excellent performance

机译：一种性能优异的新型Ce3 +活化Lu3MgAl3SiO12石榴石荧光粉，用于蓝筹发光二极管

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摘要

A novel Ce3+ activated Lu3MgAl3SiO12:Ce phosphor was synthesized and found to crystallize in the garnet structure. The crystal structure of the synthesized phosphor has been characterised by X-ray diffraction and Rietveld refinement. Both room and high temperature photoluminescence spectra are utilized to investigate the luminescence properties and crystal field splitting. The high temperature quenching of these phosphors and their quantum efficiency (QE) are also studied using both the prepared YAG: Ce and the commercial YAG: Ce phosphor named P46-y3 as the reference. Upon excitation with blue light, the composition-optimized Lu3MgAl3SiO12:Ce phosphor exhibited strong yellow light with a high QE of 81.2% and better thermal stability than that of the commercial phosphor. The results indicate that the Lu3MgAl3SiO12:Ce phosphor can serve as a candidate for blue chip LEDs.
机译：合成了新型的Ce3 +活化的Lu3MgAl3SiO12：Ce荧光粉，发现其在石榴石结构中结晶。合成的磷光体的晶体结构已通过X射线衍射和Rietveld精制表征。室温和高温光致发光光谱均用于研究发光性质和晶体场分裂。还使用制备的YAG：Ce和商品名为P46-y3的YAG：Ce荧光粉对这些荧光粉的高温猝灭及其量子效率（QE）进行了研究。蓝光激发后，经过成分优化的Lu3MgAl3SiO12：Ce磷光体显示出强黄光，具有81.2％的高QE和比市售磷光体更好的热稳定性。结果表明，Lu3MgAl3SiO12：Ce荧光粉可作为蓝筹LED的候选材料。

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