经高温固相反应合成YVO4:xEr3+(x=0.001,0.003,0.005,0.007,0.01,0.03,0.05,0.07,0.09,0.1摩尔比)绿色系列粉末状发光材料.经X射线衍射分析产物为单相,属四方锆英石结构.检测了材料的真空紫外激发光谱和发射光谱.发现,YVO4:xEr3+(x=0.001,0.003,……,0.1摩尔比)的真空紫外激发光谱,在120nm～350nm范围内形成若干个连续的带状峰,应该归属于VO3-4离子团的吸收带.在紫外和真空紫外激发下,样品的发射光谱均产生两个明显的锐锋,峰值在523nm和552nm附近,分别对应于Er3+离子的2H1/2→4I15/2,4S3/2→4I15/2跃迁;其中4S3/2→4I15/2的跃迁明显强于2H11/2→15/2.随着Er3+含量X由0.001增加到0.003,YVO4:xEr3+发射光谱强度逐渐增加到最大值,之后随着x继续增加发射光谱强度逐渐下降,呈现明显的浓度猝灭现象.
参考文献
| [1] | Xu X R;Su M Z.Luminescence and luminescent materials[M].北京:化学工业出版社,2004:165-167. |
| [2] | J. T. Vega-Duran;O. Barbosa-Garcia;L. A. Diaz-Torres .Effects of energy back transfer on the luminescence of Yb and Er ions in YAG[J].Applied physics letters,2000(15):2032-2034. |
| [3] | Chen X B;Li M X;Sawanobori N et al.Direct upcon-version sensitization luminescence of Er3+ oxyfluoride glassceramic[J].Acta Physica Sinica,2000,49(12):2482. |
| [4] | 温磊,张丽艳,杨建虎,汪国年,陈伟,胡丽丽.掺铒氟（卤）磷碲酸盐玻璃的上转换发光性能研究[J].物理学报,2006(03):1486-1490. |
| [5] | 陈晓波,N.Sawanobori,聂玉昕.氟氧化物玻璃陶瓷中交叉能量传递与荧光防伪的初步研究[J].物理学报,2000(12):2488-2493. |
| [6] | 陈晓波,张福初,陈鸾.Up-conversion luminescence research of Er(0.5): ZBLAN material for volumetric display application when excited by 1520nm laser[J].中国物理(英文版),2003(12):1451-1458. |
| [7] | 张洪武,付晓燕,牛淑云,韩燕,孙公权,辛勤.纳米发光材料LnVO4：Eu（Ln=La,Gd,Y）的光谱研究[J].光谱学与光谱分析,2004(10):1164-1167. |
| [8] | 曾小青,洪广言,尤洪鹏,吴雪艳,金昌弘,卞钟洪,庾炳容,裴贤淑,朴哲熙,权一亿.YP1xVxO4∶Eu3+在真空紫外区发光的优化[J].发光学报,2001(01):55-58. |
| [9] | 洪广言,曾小青,尤洪鹏,吴雪艳.基质晶体的真空紫外光谱研究[J].硅酸盐学报,2004(03):233-238. |
| [10] | Peng G Z .Lightness decrease of phosphors used for PDP[J].Electronic instrument,2001,24(03):245-251. |
| [11] | Zhou Y H;Lin J .Morphology control and luminescence properties of YV04:Eu phosphors prepared by spray py-rolysis[J].Optical Materials,2005,27:1426-1432. |
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