Ba3Ga(PO4)3:Dy3+荧光粉阴极射线发光研究

摘要

Cathodoluminescent properties of Ba3Gd(PO4)3:Dy3+ phosphor were studied. The phosphor was synthesized by high-temperature solid-phase reaction. Cathodoluminescence spectra, the Commission In-ternational de l'Eclairage colour coordinates and photoluminescence spectra were determined. The Catho-doluminescence measurement shows that the Commission International de 1' Eclairage (CIE) chromaticity coordinates of Ba3Gd(PO4)3:0.06Dy3+ phosphor are x=0.454 and y=0.424, and the color temperature is 2889.3 K. The results show that the phosphor is a low color temperature, warm-white phosphor with high saturation currents and can endure high-current-density bombardment.%本文研究了采用高温固相法合成的Ba3Gd(PO4)3:Dy3+荧光粉的阴极射线发光特性.测试并比较了电子轰击前后荧光粉的CL谱、色坐标以及PL谱变化.Ba3Gd(PO4)3:0.06Dy3+荧光粉的色坐标为 x=0.454,y=0.424,Tc=2889.3 K.测试结果显示该荧光粉是一种低色温、暖白光荧光粉,并且具有高的饱和电流,有耐大电流密度电子束轰击的能力.