M n^(2+)对掺Ce^(3+)BiB_3O_6纳米材料发光强度的影响  

Effect of Mn^(2+)on the Photoluminescence Characteristics of Ce^(3+)-Doped BiB_3O_6 Nanoparticles

作　　者：邹文国[1,2] 杨忠森[1] 吕孟凯[1] 顾锋[1] 王淑芬[1] 

机构地区：[1]山东大学晶体材料国家重点实验室 [2]山东轻工业学院,济南250100

出　　处：《硅酸盐通报》2005年第1期115-117,共3页Bulletin of the Chinese Ceramic Society

摘　　要：采用溶胶-凝胶的方法合成了一系列掺杂M n2+,C e3+的B iB3O6纳米发光材料。通过激发光谱和发射光谱研究了其发光性质,并探讨了M n2+对C e3+发光性能的影响。B iB3O6∶C e3+的发射光谱有位于370nm和405nm处的2个发射峰,由于M n2+对C e3+的敏化作用,C e3+在B iB3O6∶C e3+,M n2+中的发光强度有了显著的增强。The photoluminescence behavior of BiB3O6: Ce3+and BiB3O6: Ce3+, Mn2+nanoparticles prepared by sol-gel method was elucidated. Their emission properties were systematically investigated at room temperature. The emission spectrum of BiB3O6: Ce3+consists of two sharp peaks at 370nm and 405 nm, which can be assigned to the 5d (2D) →(2F7/2+2F5/2) (4f1) of Ce3+ions. Because of the energy transfer between Mn2+and Ce3+ions, the emission spectrum of BiB3O6: Ce3+, Mn2+is dramatically different from that of BiB3O6: Ce3+sample. Also, the emission intensities of 370nm and 405 nm change with different molar ratios of Mn2+in various proportions.

关 键 词：MN^2+ 发射光谱 发光强度 激发光谱 纳米发光材料 发光性质 溶胶-凝胶 增强 合成 敏化 

分 类 号：TQ174.756[化学工程—陶瓷工业] O482.31[化学工程—硅酸盐工业]