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白光LED因被认为是下一代的室内照明光源而受到广泛关注。作为白光LED不可或缺的一部分,荧光粉一直是发光材料研究中的重要部分。随着对白光LED性能要求的不断提高,开发具有丰富发光颜色的荧光粉非常重要。而利用激活剂与敏化剂之间的能量传递作用是获得丰富发光颜色荧光粉的一种重要方法。本文综述了近期基于能量传递过程获得不同体系荧光粉的研究进展,其中包括Eu~(2+)-Mn~(2+)/Tb~(3+),Eu~(2+)-Tb~(3+)-Mn~(2+)/Eu~(3+)/Sm~(3+),Ce~(3+)-Mn~(2+)/Tb~(3+)/Dy~(3+)/Cr~(3+)/Pr~(3+)/Eu~(2+),Ce~(3+)-Tb~(3+)-Mn~(2+)/Eu~(3+)/Sm~(3+),Bi~(3+)-Eu~(3+)/Sm~(3+),Tb~(3+)-Eu~(3+)/Sm~(3+),基质-Ln~(3+)等体系,这为稀土荧光粉的进一步研究提供一定的指导作用。
White LED is considered as the next generation of indoor lighting and receive widespread attention. As an indispensable part of white LEDs, phosphors have always been an important part of luminescent materials research. With the continuous improvement of performance requirements of white LEDs, it is very important to develop phosphors with rich emission colors. The use of energy transfer between activator and sensitizer is an important way to obtain rich luminescent color phosphors. This review summarizes the recent progress in obtaining phosphors based on energy transfer processes, including Eu ~ (2 +) - Mn ~ (2 +) / Tb ~ (3 +) and Eu ~ (2 +) - Tb ~ (2 +) / Eu ~ (3 +) / Sm ~ (3 +), Ce ~ (3 +) - Mn ~ (2 +) / Tb ~ (3 +) / Dy ~ (3 +) / Cr ~ (3 +) / Pr ~ (3 +) / Eu ~ (2 +), Ce ~ (3 +) - Tb ~ (3 +) - Mn ~ (2 +) / Eu ~ (3 +) - Eu ~ (3 +) / Sm ~ (3 +), Tb ~ (3 +) - Eu ~ (3 +) / Sm ~ (3+) , Matrix - Ln ~ (3 +) and other systems, which provide further guidance for the further study of rare earth phosphors.