轻质氯硅酸铍荧光粉的合成与表征

Handbook of Research on Advancements in the Processing, Characterization, and Application of Lightweight Materials Pub Date : 1900-01-01 DOI:10.4018/978-1-7998-7864-3.ch004

K. Sharma

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引用次数: 0

摘要

本章通过固相反应制备了低质量的钡基氯硅酸盐Ba5Cl6Si2O6:Eu2+。为了确认合成荧光粉的结构，使用x射线衍射仪获得了粉末照片。记录了光致发光光谱和红外光谱。研究了光致发光光谱。在激发275 nm处观察到407 nm处的发射峰。得到了强烈的紫蓝色辐射。Ba5Cl6Si2O6:Eu2+具有较宽的激发带和较强的发射特性，可以作为蓝光LED和白光LED的良好候选荧光粉。衰减曲线表明该荧光粉具有较长的余辉特征。

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Synthesis and Characterization of Lightweight Beryllium Chloro Silicate Phosphor

In this chapter, low weight barium-based cholorsilicate Ba5Cl6Si2O6:Eu2+ is prepared through a solid-state reaction. To confirm the structure of the synthesized phosphors, powder photographs were obtained using an x-ray diffractometer. Photoluminescence spectra and FTIR spectra were recorded. Photoluminescence spectra are studied. The emission peak is observed at 407 nm at excitation 275 nm. The intense violet-blue emission is obtained. The broad excitation band and strong emission indicate that Ba5Cl6Si2O6:Eu2+could be a good phosphor candidate for blue LED and white LEDs. Decay curve indicates the phosphor has a long afterglow feature.

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Handbook of Research on Advancements in the Processing, Characterization, and Application of Lightweight Materials

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