Eu^(3+)/Sm^(3+)共掺双钼钨酸复合盐多晶材料的制备与性能表征  

Synthesis and Characterization of Eu^(3+)/Sm^(3+) Co-doped Complex Molybdate-tungstates Polycrystal Material

作　　者：王春浩[1] 张俊[1] 陈振强[1,2] 吴聪聪[1] 李安明[1,2] 

机构地区：[1]暨南大学光电工程研究所,广州510632 [2]广东省高等学校光电信息与传感技术重点实验室(暨南大学),广州510632

出　　处：《人工晶体学报》2013年第8期1548-1551,共4页Journal of Synthetic Crystals

基　　金：广东省自然科学基金项目(9178922035-X000002);广东省产学研项目(2009B091300072;2010B090500022)

摘　　要：使用高温固相反应法合成了Eu3+/Sm3+共掺双钼钨酸复合盐多晶材料LiGd0.70Eu0.25Sm0.05(WO4)0.5(MoO4)1.5,并使用X射线衍射仪(XRD)、荧光光谱仪等分析测试仪器对其结构、热性能及光谱性能进行了表征。结果表明所合成的晶相属于四方晶系,空间群为为I41/a(88)。材料具有单一熔点,为1050℃。Sm3+进入晶格并起到敏化作用。样品在396 nm、465 nm激发下能够很好地发射波长为615 nm红光。所制备的样品具有在白光LED中应用的潜力。LiGd0.70Eu0.25Sm0.05（WO4）0.5（MoO4）1.5 compounds were synthesized by solid state reaction. The strcture, thermal properties and spectra properties were investigated by XRD, photoluminescence. The result shows that the sample belongs to tetragonal system with space group is 141/a （88）. The compound melts congruently at 1050 ℃. Sm3＋ were absorbed into lattice as sensitizer. Sample can emission 615 nm red light under the excitement of 396 nm,465 nm radiation. Therefore, it may have a potential WLED application.

关 键 词：钼酸复合盐 高温固相反应 白光LED 

分 类 号：O78[理学—晶体学]