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CaS:Dy3+荧光体的微波合成及其发光特性
CaS:Dy3+: microwave synthesis and luminescence properties
【摘要】 目的微波合成CaS:Dy3+荧光体,监测其发射光谱,探讨其发光原理。方法微波快速加热法。通过XRD的测定,确定CaS:Dy3+的晶相。结果CaS:Dy3+荧光在 273nm和 300nm监测下的发射光谱存在差异。结论CaS:Dy3+属CaS立方晶相,CaS:Dy荧光体的两种不同的发射光谱是由两种不同的发光中心引起。
【Abstract】 Objective and Method To synthesize CaS:Dy 3+ phosphors using microwave heating and evaluate the luminescence properties of the phosphors by measuring their emission spectra. Results The crystal structures of CaS:Dy 3+ phosphors were determined by XRD, and their emission spectra were measured and compared under the wavelength of 273 and 300 nm. Conclusion The structure of CaS:Dy 3+ phosphors belongs to CaS cubic system. Two different emission spectra are caused by the two different luminescence centers.
【关键词】 微波合成;
CaS:Dy3+荧光体;
发射光谱;
发光中心;
【Key words】 microwave synthesis; CaS:Dy 3+ phosphors; emission spectrum; luminescence center;
【Key words】 microwave synthesis; CaS:Dy 3+ phosphors; emission spectrum; luminescence center;
【基金】 北京大学稀土材料化学与应用国家重点实验室开放课题基金(200409)资助项目;广东药学院科研基金
- 【文献出处】 广东药学院学报 ,Academic Journal of Guangdong College of Pharmacy , 编辑部邮箱 ,2005年01期
- 【分类号】O613
- 【被引频次】2
- 【下载频次】148