Sm_(1-x)M_x(TTA)_3phen转光剂的合成及荧光性能  

Synthesis and Fluorescence Properties of doping complexes Sm_(1-x)M_x(TTA)_3phen as Light Conversion Agent

作　　者：李剑[1] 倪亚茹[1] 张炎[1] 陆春华[1] 薛君凯[1] 许仲梓[1] 

机构地区：[1]南京工业大学材料科学与工程学院,南京210009

出　　处：《光子学报》2009年第9期2348-2352,共5页Acta Photonica Sinica

基　　金：江苏省高校自然科学基础研究项目(08KJB480001)资助

摘　　要：采用化学沉淀法合成了具有紫外转红光性能的转光剂Sm1-xMx(TTA)3phen(M=Y,Gd).借助红外光谱、紫外-可见光吸收光谱及荧光光谱对配合物的性能进行了表征.结果表明:Sm1-xMx(TTA)3phen与Sm(TTA)3phen的配位结构基本一致;配合物的紫外光吸收特性主要由有机配体决定;配合物吸收紫外光后,均发出Sm3+的特征光,其中Sm0.5Y0.5(TTA)3phen在647 nm处的荧光强度在配合物中最强,达到9.5×106cps;敏化离子的掺入可以提高配合物的荧光强度,荧光增强效果Y3+优于Gd3+.A series of doping complexes Sm1-xMx （TTA）3 phen （M denotes Gd^3＋ or Y^3＋, TTA stands for 2 thenoyltrifluoroacetone, phen denotes 1,10-phenanthroline, x is the mole fraction of doping elements） as light conversion agent are synthesized by chemical precipitation method, and the characteristics of the compounds are performed using infra-red spectrum （IR）, UV-visible absorption and fluorescence spectroscopy. The results indicate that the structure of Sm1-xMx （TTA）aphen are similar to Sm （TTA） 3 phen, and the characteristic UV absorption peaks of Sm1-xMx （TTA）a phen are depended on organic ligands. Photoluminescence measurements indicate that the complexes emit strong luminescence, which is determined by the transitions of center samarium ion under UV radiation. The strongest luminescence of Sm0.5Y0.5（TTA）aphen is at 647nm, up to 9. 5 × 10^6 cps. The luminescence of Sm1-xMx （TTA）3 was enhanced with the addition of sensitized elements, Y^3＋ is better than Gd^3＋.

关 键 词：光谱学 转光剂 钐 敏化离子 荧光 

分 类 号：O657.3[理学—分析化学]