铕铽共掺稀土聚合物的光谱分析及发光性能研究  

Spectral Analysis and Photoluminescence Properties of Eu-Tb Codoped Polymer

作　　者：李洁[1] 许并社[2] 李迎春[1] 谢江波[1] 

机构地区：[1]中北大学材料科学与工程学院,山西太原030051 [2]太原理工大学教育部新材料界面与工程重点实验室、太原理工大学材料科学与工程学院,山西太原030024

出　　处：《光谱学与光谱分析》2009年第4期891-895,共5页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金项目(20671068)资助

摘　　要：合成了一种新型的稀土配合物Eu0.5Tb0.5(TTA)3Phen,并采用原位乳液聚合法进一步制备了Eu0.5Tb0.5(TTA)3Phen/PMMA稀土聚合物。利用红外光谱仪(IR)、电子探针X射线能谱仪等对其结构进行了表征,利用扫描隧道电子显微镜(SEM)、荧光光谱仪(FS)等研究了其微观形貌,并探讨了其发光性能。结果表明,聚合物中PMMA与稀土部分Eu0.5Tb0.5(TTA)3Phen通过键合的方式结合,仍保持Eu0.5Tb0.5(TTA)3Phen原有的发光特性;在365nm紫外光的激发下,产生发光峰在611.8nm附近、谱线带宽为10.4nm的红光发射,发光亮度高,色纯度高;Eu0.5Tb0.5(TTA)3Phen/PMMA具有良好的发光性能,其发光强度与MMA加入的含量有关。In the present paper, Eu0. 5 Tb0.5 （TTA） 3 Phen was synthesized and Eu0. s Tb0.5 （TTA） 3 Phen/PMMA was prepared by irrsitu polymerization. The structure of Eu0.5Tb0.5 （TTA）3 Phen/PMMA was characterized by FTIR spectra. Microscopic morphology and photoluminescence properties were investigated by SEM photographs and fluorescence spectra. The results indicated that polymer parts were attached with the rare-earth molecular parts in the composite luminescent materials. And Eu0.5 Tb0.5 （TTA）3Phen/PMMA could emit mostly characteristic fluorescence of europium ion and intense red fluorescence with a peak wavelength at 611.8 nm and a bandwidth of 10. 4 nm（Purity： 0. 990 5） under UV excitation at 365 nrn. Its fluorescence intensity was found to be influenced with the content of MMA. It was demonstrated that Eu0.5 Tbo. s （TTA）3 Phen/PMMA was an excellent red photoluminescent rare-earth polymer material.

关 键 词：稀土聚合物 光致发光 原位聚合 红光发射材料 

分 类 号：O482.3[理学—固体物理]