【摘要】 以Y₂O₃、Yb₂O₃和Er₂O₃为原料,控制溶液的pH值为3～4,采用溶胶-凝胶法制备出Er、Yb:Y₂O₃多晶粉体。对所得到的粉体进行XRD测试,结果表明最佳煅烧温度为1 000℃,并且晶化完全。经过差热-热重分析表明,粉体在1 000℃煅烧后不再失重。荧光光谱分析发现,荧光发射的最强峰位于1 530 nm处,是Er³⁺⁴I_13/2-^-4I_15/2谱项导致的荧光发射。更多还原

【Abstract】 In this paper,Er,Yb:Y₂O₃ polycrystalline powder is synthesized by sol-gel method with Y₂O₃,Yb₂O₃ and Er₂O₃,and the pH value of the solution is 3～4.XRD analysis is shown that the optimum calcination temperature of precursor is 1 000℃.At the same time crystallization is complete.The analysis of DTA-TG indicates that the weight of samples is not reduced when it is sintered at 1 000℃.The strongest fluorescence peak of Er,Yb:Y₂O₃ laser ceramics precursor is 1 530 nm,that is ⁴I_13/2⁴-I_15/2.更多还原