Cr3+, Nd3+:GSGG激光陶瓷原料制备及性能研究

Researches on Preparation and Performances of Cr3+, Nd3+:GSGG Laser Ceramic Raw Materials

摘要:

本文采用共沉淀法制备Cr₃₊与Nd₃₊不同配比的Cr₃₊,Nd₃₊:GSGG激光陶瓷的前驱粉体,在不同的温度下对其进行煅烧得到多晶粉体原料,采用X射线衍射、热分析仪、场发射扫描电镜和分光光度计对煅烧后多晶原料的物相转变、微观形貌和发光性能进行研究,确定复合掺杂离子的最佳掺杂浓度。结果表明,前驱粉体在900℃下煅烧可获得分布均匀的GSGG纳米粉体,Cr₃₊与Nd₃₊之间存在能量传递机制,能够增强发光。

Abstract:

In this paper,precursor powders of Cr₃₊,Nd₃₊:GSGG laser ceramic were carried out by coprecipitation method with different ratio of Cr₃₊ and Nd₃₊. Polycrystalline materials were obtained at different sintering temperature. The phase transformation, micro-morphology and luminescent property were analyzed by XRD, TG-DTA, FESEM and fluorescence spectrum. And the optimum doped concentration of composite doping ions was characterized. The results show that GSGG nano-powder with uniform distribution can be obtained from the precursor powder at 900℃ sintering temperature, and the energy transfer mechanism between Cr₃₊ and Nd₃₊ can enhance the luminescence.