Sm_(0.5)Eu_(0.5)(Hacac)_2 HAA三元配合物的合成及其光致发光  

Synthesis and photoluminescence of Sm_(0.5)Eu_(0.5)(Hacac)_2 HAA complex

作　　者：谭冠华[1] 张林[1] 罗桂林[1] 肖尊宏[1] 

机构地区：[1]贵州师范大学化学与材料科学学院,贵州贵阳550001

出　　处：《贵州师范大学学报（自然科学版）》2011年第1期88-91,共4页Journal of Guizhou Normal University：Natural Sciences

基　　金：贵州省自然科学基金(黔科合J字[2008]2028号)资助

摘　　要：合成了稀土配合物Sm(Hacac)2HAA和Sm0.5Eu0.5(Hacac)2HAA并通过红外光谱、元素分析确定了其组成,探讨了它们的光谱特征。结果表明:Sm(Hacac)2HAA和Sm0.5Eu0.5(Hacac)2HAA的均发出Sm3+的特征光谱,发射峰在647 nm;Eu3+的掺入提高了配合物Sm0.5Eu0.5(Hacac)2HAA的荧光强度,与此同时Eu3+的特征发射峰(610nm)消失。Sm0.5Eu0.5(Hacac)2HAA配合物的主要荧光发射峰位在647 nm,这与植物光合作用所需的光波长643 nm较为吻合,可作为一种红光光转换剂应用在农膜中。Sm （Hacac） 2 HAA and Sm0.5Eu0.5（Hacac）2HAA were synthesized in ethanol solution and characterized by IR and EA （element analysis ）. Their UV and fluorescence spectroscopy were obtained. The results showed that Sm（Hacae） 2HAA and Sm0.5Eu0.5（Hacac）2HAA exhibited a red light by UV excited wavelength and their characteristic peak was at 647 nm. The photoluminescence of Sm0.5Eu0.5（Hacac）2HAA complex was enhanced by Eu^3＋ , but the characteristic fluorescence emission peak（61Onm） of Eu^3＋ disappeared at the same time. Their main fluorescence emission peak of the complexes was at 647 nm, which was most closed to the photosynthesis spectra of plants. Sm0.5Eu0.5（Hacac）2HAA could become a new red light-conversion agent for agricultural film.

关 键 词：Sm0.5Eu0.5(Hacac)2HAA 光转换剂 红光 光致发光 

分 类 号：O612[理学—无机化学]