Preparation and luminescent properties of Yb3+∶Y2O3 ultrafine powders by low-temperature combustion synthesis
-
摘要: 以稀土硝酸盐和尿素(摩尔分数为1∶3)为原料,采用低温燃烧法在点火温度为600 ℃,热处理温度为1 100 ℃,热处理时间为1 h条件下制备了Yb3+∶Y2O3超细粉体。利用X射线粉末衍射仪(XRD)、扫描电子显微镜(SEM)和荧光光谱仪(FS)对粉体进行了表征。研究了点火温度、燃料用量和热处理温度对粉体性能的影响。实验结果表明:所制备的Yb3+∶Y2O3超细粉体的粒径为15~30 nm,颗粒分散性较好,无明显团聚,且粉体的发光性能良好,发射峰位于976,1 030和1 075 nm,适合于制备Yb3+∶Y2O3透明陶瓷。Abstract: Yb3+∶Y2O3 ultrafine powders were prepared by using the low-temperature combustion synthesis(LCS) with the solutions of mixed nitrates and urea in mol concentration ratio of 3∶1 and at a ignition temperature about 600 ℃. The Yb3+∶Y2O3 ultrafine powders were measured by using a X-ray Diffractometer(XRD), a Scanning Electron Microscope(SEM) and a Fluorescence Spectrometer(FS). The influences of ignition temperature, fuel content and calcination temperature on the characteristics of the powders were investigated. The experimental result shows that the grain diameter of as-prepared powders is about 15-30 nm, and the grain dispersion is good without obvious agglomeration. Moreover the fluorescence performace of the powders is well, and the emission peaks are located at 976, 1 030 and 1 075 nm. As a result, the Yb3+∶Y2O3 ultrafine powders can be propitious to the preparation of Yb3+∶Y2O3 transparent ceramics.
-
[1] 卢利平,张希艳,柏朝晖,等 . 低温燃烧合成红外响应材料CaS∶Eu,Sm及性能表征[J]. 稀有金属材料与工程 ,2006,35(8):1211-1214. LU L P,ZHANG X Y,BAI ZH H,et al.. Synthesis of IR sensitive material CaS∶Eu,Sm by low-temperature combustion and its characterization[J]. Rare Metal Materials Eng.,2006,35(8):1211-1214.(in Chinese) [2] TAKAICHI K,YAGI H,LU J,et al.. Highly efficient continuous-wave operation at 1 030 and 1 075 nm wavelengths of LD-pumped Yb3+∶Y2O 3 ceramic lasers[J]. Appl. Phys. Lett.,2004,84(3):317-319. [3] LU J,BISSON J F,TAKAICHI K,et al.. Yb3+∶Sc2O3 ceramic laser[J]. Appl. Phys. Lett.,2003,83(6):1101-1103. [4] 张晓顺,翟秀静,邱竹贤,等. 燃烧合成法制备纳米氧化锌[J]. 分子科学学报 ,2005,21(1):12-15. ZHANG X SH,ZHAI X J,QIU ZH X,et al.. The preparation of nanometer zinc oxide by combustion synthesis[J]. J. Molecular Sci.,2005,21(1):12-15.(in Chinese) -
计量
- 文章访问数: 3060
- HTML全文浏览量: 353
- PDF下载量: 1155
- 被引次数: 0
下载:
