A New Route to Synthesize β-SiAlON:Eu2+ Phosphors for White Light-Emitting Diodes
A New Route to Synthesize β-SiAlON:Eu2+ Phosphors for White Light-Emitting Diodes
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DOI：
10.7567/apex.6.042105
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发表时间：
2013-04
影响因子：
2.3
通讯作者：
Jing Niu;G. Saito;T. Akiyama
中科院分区：
文献类型：
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作者：
Jing Niu;G. Saito;T. Akiyama
报道了一种简单、高效地合成白光发光二极管用β-SiAlON：Eu2+荧光粉的方法。以硅、硅、铝为原料，以氯化钠为稀释剂，在氮气压力下进行燃烧合成。研究了荧光粉的物相纯度、光致发光性能和热猝灭。结果表明，合成的β-SiAlON：Eu2+粉末由棒状晶体组成，具有较高的热稳定性，在160℃时的发射强度是室温下的84%，这表明合成的β-SiAlON：Eu2+荧光粉具有很高的应用前景。
A simple, highly efficient method of synthesizing β-SiAlON:Eu2+ phosphors for white light-emitting diodes was reported. The new route was carried out via a combustion synthesis method using Si, SiO2, and Al raw materials, and NaCl as a diluent under nitrogen pressure. The phase purity, photoluminescence properties, and thermal quenching of the phosphors were investigated. The results revealed that the synthesized β-SiAlON:Eu2+ powders, which comprised rodlike crystals, exhibited high thermal stability: The emission intensity at 160 °C was 84% of that measured at room temperature, which indicates that the synthesized β-SiAlON:Eu2+ phosphors have high potential for application to white LEDs.