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Exploration of zinc borophosphate glasses as dispersion media for SiAlON phosphors
International Journal of Applied Glass Science ( IF 2.1 ) Pub Date : 2020-01-17 , DOI: 10.1111/ijag.15004
Hiroyo Segawa 1 , Shinobu Ohki 1 , Kenzo Deguchi 1 , Tadashi Shimizu 1 , Naoto Hirosaki 1
Affiliation  

Ca‐α‐SiAlON:Eu2+ oxynitride phosphors are typical luminescent materials with high thermal tolerances. A series of zinc borophosphate glass samples (ZnO–B2O3–P2O5) were prepared to investigate their ability to disperse Ca‐α‐SiAlON:Eu2+ phosphor powders and to obtain phosphor‐in‐glass (PiG). PiG was prepared with SiAlON and zinc borophosphate glass through a melting process, and seven types of PiGs were successfully obtained without obvious degradation of SiAlON. In particular, PiGs prepared from 30ZnO–40B2O3–30P2O5 and 60ZnO–30B2O3–10P2O5 (mol%) glasses showed the highest quantum efficiency (QE). The glass structures of the mother glasses were investigated by nuclear magnetic resonance spectroscopy (NMR) and Raman spectroscopy; it was important to reduce the Q0 species of PO4 units and 4‐coordinate boron for a high QE. From the X‐ray diffraction (XRD) and scanning electron microscopy (SEM) images, it was established that ZnAl2O4 was formed around the SiAlON powders in PiG composed of the 60ZnO–30B2O3–10P2O5 (mol%) glass.

中文翻译:

硼硅酸锌玻璃作为SiAlON荧光粉分散介质的探索

Ca-SiAlON:Eu 2+氮氧化物荧光粉是具有高耐热性的典型发光材料。准备了一系列硼硼酸锌玻璃样品(ZnO–B 2 O 3 –P 2 O 5),以研究其分散Ca-α-SiAlON:Eu 2+荧光粉的能力并获得玻璃中荧光粉(PiG) 。用熔化的SiAlON和硼磷酸锌玻璃制备PiG,成功地获得了七种类型的PiG,而SiAlON没有明显的降解。特别是由30ZnO–40B 2 O 3 –30P 2 O 5和60ZnO–30B 2 O 3制备的PiG。–10P 2 O 5(mol%)玻璃显示出最高的量子效率(QE)。通过核磁共振波谱(NMR)和拉曼光谱研究了母玻璃的玻璃结构。对于高QE ,减少PO 4单元和4坐标硼的Q 0物种非常重要。从X射线衍射(XRD)和扫描电子显微镜(SEM)图像,可以确定在由60ZnO–30B 2 O 3 –10P 2 O 5(mol)组成的PiG中,SiAlON粉末周围形成了ZnAl 2 O 4。%)玻璃。
更新日期:2020-01-17
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