水热法制备Y₂O₃:Eu及其发光性能的研究

来源期刊：有色金属科学与工程2010年第1期

论文作者：廖金生 徐鹏 邱报

文章页码：30 - 33

关键词：Y₂O₃:Eu；水热法；光致发光；稀土掺杂

Key words：Y₂O₃: Eu; hydrothermal method; photoluminescence; rare-earth doping

摘    要：

利用水热法制备立方相Y₂O₃:Eu红色荧光粉．在不同掺杂浓度、不同溶液pH值的系列样品中，均观测到Eu³⁺离子的特征发射．荧光强度与Eu³⁺离子掺杂浓度关系研究表明：在不同掺杂浓度中，Eu³⁺离子掺杂浓度为9%时其相对发射强度最强．在不同溶液pH值所获得的样品中，以溶液pH等于6制备的样品发光效果最好．此外通过与商用Y₂O₃:Eu红色荧光粉比较，发现其荧光强度相当．因此，与传统高温固相法相比，水热法合成Y₂O₃:Eu红色荧光粉是简单易行方案．

Abstract:

The cubic Y₂0₃:Eu red phosphors were prepared by hydrothermal method. The room temperature sharp characteristic emissions of Eu³⁺ ions were observed for the samples with different doped concentrations and pH values in reactive solution. The effect of the Eu³⁺ doping concentration on the fluorescence emission intensity was discussed. The optimum doped concentration for the luminescence intensity of Eu³⁺ is determined to be 9% for the cubic structure samples. The optimum pH value of reactive solution for obtaining the most intense emission is determined to be 6. In addition, the luminescence intensity of the Y₂0₃:Eu phosphors for hydrothermal method are comparative with that of commercial phosphor Y203:Eu. Therefore, it is a simple and easy method that Y₂0₃:Eu phosphors were prepared by hydrothermal method.