CAJ | 학술논문

以NaCl和KCl为熔盐，采用熔盐法合成了(La,Ce,Tb)PO4绿色荧光粉.利用XRD、SEM、激光粒度仪、光谱分析仪等测试和分析荧光粉物相、粒径、形貌及发光性能，主要考察了复合熔盐用量、合成时间及合成温度对荧光粉性能的影响，并对反应机理进行探讨.结果表明，复合熔盐与前驱体的摩尔比为2.5～3.5，在900℃保温3 h，可以得到性能良好的(La,Ce,Tb) PO4绿色荧光粉，其发光亮度优于高温固相法.
이NaCl화KCl위용염，채용용염법합성료(La,Ce,Tb)PO4록색형광분.이용XRD、SEM、격광립도의、광보분석의등측시화분석형광분물상、립경、형모급발광성능，주요고찰료복합용염용량、합성시간급합성온도대형광분성능적영향，병대반응궤리진행탐토.결과표명，복합용염여전구체적마이비위2.5～3.5，재900℃보온3 h，가이득도성능량호적(La,Ce,Tb) PO4록색형광분，기발광량도우우고온고상법.
Using sodium chloride and potassium chloride as molten salts, (La,Ce,Tb) PO 4 was prepared through molten salt method in this paper. Morphology, phase, particle size and luminescent properties were measured and analyzed by SEM, XRD, laser particle size and luminescence spectrum. The effects of amount of compound molten salt, sintering temperature and time on properties of the phosphor were studied. Then the reaction mechanism was discussed. The results indicate that high performance (La,Ce,Tb) PO 4 green emitting phosphor whose peak intensity is higher than that of the phosphor prepared by high temperature solid state reaction can be obtained when the optimal ratio of the compound molten salt to precursor is 2.5~3.5,and the best condition for roasting is 900 ℃holding for 3 h.