采用凝胶-凝胶法制备了Sr1.98Eu0.02MgSi2O7发光材料.XRD的结果表明,所制备得到的发光材料主要由镁黄长石型结构的Sr2MgSi2O7组成;扫描电镜的结果表明,在实验的烧成温度下,在烧结过程中出现了明显的液相.荧光分析结果表明,该材料的主要激发峰位于353nm处,而主要的发射峰则位于468nm处,是典型的Eu2+的4f65d1→4f7的跃迁引起的.
参考文献
| [1] | 徐叙容;苏勉曾.发光学与发光材料[M].北京:化学工业出版社,2004:1-3. |
| [2] | Lin YH.;Nan CW.;Zhou XS.;Wu JB.;Wang HF.;Chen DP.;Xu SM. .Preparation and characterization of long afterglow M2MgSi2O7-based (M : Ca, Sr, Ba) photoluminescent phosphors[J].Materials Chemistry and Physics,2003(3):860-863. |
| [3] | Mei Zhang;Jing Wang;Weijia Ding;Qiuhong Zhang;Qiang Su .Luminescence properties of M_2MgSi_2O_7:Eu~(2+) (M = Ca, Sr) phosphors and their effects on yellow and blue LEDs for solid-state lighting[J].Optical materials,2007(4):571-578. |
| [4] | Qin Fei;Chengkang Chang;Dali Mao .Luminescent properties of Sr_2MgSi_2O_7 and Ca_2MgSi_2O_7 long lasting phosphors activated by Eu~(2+), Dy~(3+)[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2005(1/2):133-137. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%