SolGel法制备Y3Al5O12Tb荧光粉及烧结行为的研究.pdfVIP

______________________________________________________________________________ Sol-Gel 法制备Y Al O :Tb 荧光粉及烧结行为的研究 3 5 12 黄 飞，董丽敏，闫爱华，张显友 （哈尔滨理工大学材料科学与工程学院，黑龙江，哈尔滨，150040） 摘 要：采用溶胶-凝胶法合成了Y Al O ：Tb 绿色荧光粉。利用TG-DTA ，IR 和XRD 3 5 12 测试技术，研究了荧光粉的形成过程，并对发光性能进行了研究。结果表明，采用溶胶-凝 胶法已经成功地制备出 YAG 荧光粉体，显示出明显的绿色光，其荧光寿命为 6.8ms ；并确 定了在1050℃条件下烧成可以得到很好的YAG 晶相结构；在400-700℃这一温度段范围内 烧成时应缓慢升温。 关键字：溶胶-凝胶法；绿色荧光粉；YAG ；发光 中图分类号：TQ174 文献标识码：A The study on preparation and sintered action of Y Al O :Tb 3 5 12 phosphor derived from a Sol-Gel process Huang Fei, Dong Linmin, Yan Aihua, Zhong Xianyou (Material Science Engineering College, Harbin University of Science and Technology, Heilongjiang, Haerbin 150040) Abstract:Y Al O ：Tb green phosphors were synthesized by a sol-gel process. The formation 3 5 12 was investigated by means of TG-DSC, IR and XRD and the luminescent properties were studied. Result shows that YAG:Tb phosphor which emitted bright green light was synthesized by a Sol-Gel process successfully and its’ decay time was 6.8ms. It also shows that the crystal phase of YAG is well at 1050 ℃ and the rate of elevated temperature should be slow at the temperature range of 400℃ to 700℃. Key word:sSol-Gel; green phosphors; YAG; luminescence 等离子体平板显示器（PDP ）由于其具 键尺寸小、键能高，这种高的键能正好可以 有屏幕大、视角宽、清晰度高、机体薄等诸 匹配 PDP 较高的真空能，即在高的电子撞 多优点，已经成为高清晰度大屏幕显示的佼 击下是一种稳定的材料。除此之外它还具有 佼者[1-2] 。目前国内外商业PDP 显示器用绿 优良的导热性、机械强度以及良好的化学性 色荧光粉主要沿用灯用荧光粉，如Zn SiO ： 质，易于掺入不同的稀土离子而获