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用高温固相扩散方法首次合成了由Eu3 + 离子激活的Zn4B6O13 红色光致发光材料。用XRD分析了样品结构 ,结果表明 :Zn3 .94B6O13 ∶Eu3 + 为立方晶系 ,晶胞参数a =0 .7471nm ,V =0 .4170nm3 。研究了Eu3 + 在Zn4B6O13 中的强激发带位于 3 94nm ,主要发射峰位于610nm归属Eu3 + 离子的5D0 →7F2 电偶极跃迁发射 ,根据发射光谱计算色坐标为x =0 .2 81,y =0 .619。SEM摄取了样品的清晰晶体外貌 ,平均颗粒度为 15 μm左右。加入一定量助熔剂使发射光谱的相对发射强度增加了 2 .3 2～ 3 .86倍。
The Zn4B6O13 red photoluminescent material activated by Eu3 + ions was synthesized for the first time by high temperature solid-state diffusion method. The structure of the sample was analyzed by XRD. The results show that the crystal structure of Zn3 .94B6O13: Eu3 + is cubic system with a = 0.7471nm and V = 0.4170nm3. The strong excitation band of Eu3 + in Zn4B6O13 is located at 3 94nm and the main emission peak is at 5D0 → 7F2 dipole transition of the assigned Eu3 + ion at 610nm. According to the emission spectrum, the color coordinate is x = 0.21, y = 0 .619. The SEM captured the clear crystal appearance of the sample with an average particle size of about 15 μm. Adding a certain amount of flux increases the relative emission intensity of the emission spectrum by 2.332 ~ 3.886 times.