摘要
以甘氨酸作燃烧剂采用燃烧法制备Y2Zr2O7:Tb3+纳米晶粉末。用X射线衍射仪(XRD)、高分辨透射电子显微镜(HRTEM)和荧光分光光度计对Y2Zr2O7:Tb3+纳米晶的相结构、形貌和发光性质进行研究。结果表明:所得到的纳米晶粒度均匀、结晶完好,属于立方萤石结构。发光光谱的测试表明:Tb3+呈现其特征绿色发射,最强峰位于542nm处。Tb3+的掺杂摩尔浓度在0.5%~6%的范围内,3%为最佳掺杂浓度。
Y2Zr2O7：Tb^3＋ nano-phosphors were fabricated by combustion synthesis method using glycine as incendiary agent. X-ray diffraction （XRD）, high-resolution transmission electron microscopy （HRTEM） and fluorescence spectrometer were used to characterize the phase structure, surface morphology and luminescence property of Y2Zr2O7：Tb^3＋ nano-phosphors. The results show that the prepared samples have uniform crystallinity and fine crystalline, with a cubic fluorite structure. Typical Tb^3＋ emission peaks were observed in the fluorescence spectra and the strongest emission at about 542 nm with green color corresponded to the ^5D4→^7F5 transition. The doping concentration of Tb^3＋ was in the range of 0.5%-6%, with the optimum of 3%.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2009年第12期2250-2252,共3页
Rare Metal Materials and Engineering
