合成双钙钛矿结构氧化物红色荧光粉所采用的方法主要有溶胶凝胶法、高温固相

合成双钙钛矿结构氧化物红色荧光粉所采用的方法主要有溶胶凝胶法、高温固相法和共沉淀法等，它们有各自的优缺点。溶胶凝胶法能够实现分子水平的掺杂，烧结温度相对较低(1300℃)，但是其反应周期较长，需要几天时间，同时需要高温煅烧处理。共沉淀法合成的样品成分相对均匀，并且很少会出现成分的偏析但是样品的粒度不容易控制，工序较为复杂，同时也需要后续的高温煅烧阶段。高温固相法具有操作简单，反应周期较短，易于工业化生产的优点，但目前合成该氧化物的煅烧温度较高(1400℃)，导致生产成本高，同时高温所制备的样品粒径过大，严重影响其发光效率。

合成双钙钛矿结构氧化物红色荧光粉所采用的方法主要有溶胶凝胶法、高温固相法和共沉淀法等，它们有各自的优缺点。 溶胶凝胶法能够实现分子水平的掺杂，烧结温度相对较低(1300℃)，但是其反应周期较长，需要几天时间，同时需要高温煅烧处理。 共沉淀法合成的样品成分相对均匀，并且很少会出现成分的偏析但是样品的粒度不容易控制，工序较为复杂，同时也需要后续的高温煅烧阶段。 高温固相法具有操作简单，反应周期较短，易于工业化生产的优点，但目前合成该氧化物的煅烧温度较高(1400℃)，导致生产成本高，同时高温所制备的样品粒径过大，严重影响其发光效率。

The methods of synthesizing double perovskite oxide red phosphors are mainly sol-gel method, high temperature solid phase method and coprecipitation method. They have their own advantages and disadvantages. The sol gel method can achieve molecular level doping, and the sintering temperature is relatively low (1300 C), but the reaction period is longer, and it takes several days. At the same time, it needs high temperature calcination. The composition of the sample synthesized by coprecipitation method is relatively uniform, and there is little segregation of the composition, but the particle size of the sample is not easy to control, the process is more complex, and the subsequent high-temperature calcination stage is also required. The high temperature solid-phase method has the advantages of simple operation, short reaction period and easy industrial production. However, the calcination temperature of the oxide is high (1400 ℃), which leads to high production cost. At the same time, the sample size prepared at high temperature is too large, which seriously affects its luminous efficiency.<BR>