通过固态反应添加SiO₂对CaTiO(3):Pr(3+)荧光粉发光性能的增强作用

Enhanced luminescence properties of CaTiO(3):Pr(3+) phosphor with addition of SiO(2) by solid-state reaction.

作者信息

Chen Rui, Chen Donghua

机构信息

College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China.

Hubei Key Laboratory for Catalysis and Material Science, College of Chemistry and Material Science, South Central University for Nationalities, Wuhan 430074, China.

出版信息

Spectrochim Acta A Mol Biomol Spectrosc. 2014 Jun 5;127:256-60. doi: 10.1016/j.saa.2014.02.046. Epub 2014 Feb 25.

DOI:10.1016/j.saa.2014.02.046

PMID:24632233

Abstract

Red phosphors CaTiO3:Pr(3+) with addition of SiO2 were prepared by solid-state reaction technique (SS). The effect of SiO2 on the crystalline phase, surface morphology and luminescence properties of CaTiO3:Pr(3+) was studied by X-ray diffractometer, transmission electron microscope, brightness meter and photoluminescence spectrometer, respectively. The results indicated that the content of SiO2 has influence on luminescence intensity, initial brightness and persistent time of samples. The red phosphor CaTi0.5Si0.5O3:Pr(3+) exhibited the optimal luminescence properties.

摘要

采用固相反应技术（SS）制备了添加SiO₂的红色荧光粉CaTiO₃:Pr(³⁺)。分别通过X射线衍射仪、透射电子显微镜、亮度计和光致发光光谱仪研究了SiO₂对CaTiO₃:Pr(³⁺)的晶相、表面形貌和发光性能的影响。结果表明，SiO₂的含量对样品的发光强度、初始亮度和余辉时间有影响。红色荧光粉CaTi₀.₅Si₀.₅O₃:Pr(³⁺)表现出最佳的发光性能。