应用化学2012，Vol.29Issue(1)：41-45,5.DOI:10.3724/SP.J.1095.2012.00041
泡沫塑料包覆SrAl2O4:Eu2+,Dy3+长余辉材料的耐水性能
Water Durability of Long Afterglow SrAl2O4 :Eu2+, Dy3+ Phosphor Encapsulated with Foamed Plastic
摘要
Abstract
The long afterglow luminescent material of SrAl2O4: Eu2 +, Dy3 + was encapsulated with polystyrene foamed plastic via a simple physical technology, and characterized by means of X-ray diffraction patterns, fourier transform infrared spectroscopy, excitation and emission spectra, thermogravimetric analysis, and transmission electron microscopy observation. Its water durability was investigated. The results show that the encapsulated layer has a thickness of about 5 ~ 10 nm and the mass fraction of encapsulation amount is about 4. 9%. The encapsulation does not change the inner structure of the phosphor and has barely influence on their photoluminescence. The encapsulation can effectively improve the water durability of the phosphors with initial intensity of 5. 02 cd/m2. The decay time can reach up to over 10 h after immersed in water for 15 h.关键词
长余辉/包覆/泡沫塑料/SrAl2O4/Eu2+/Dy3+Key words
afterglow/ encapsulation/ foamed plastic/ SrAl2 O4 : Eu2 +/ Dy3 +分类
化学化工引用本文复制引用
郑子山,陈芝,林燕美,陈碧桑,林珩,陈国良,周文华,余金,陈建华..泡沫塑料包覆SrAl2O4:Eu2+,Dy3+长余辉材料的耐水性能[J].应用化学,2012,29(1):41-45,5.基金项目
国家自然科学基金(21076174) （21076174）
福建省科技厅高校产学研重大项目(2010H6029) （2010H6029）
福建省科技厅资助项目(JA03142)项H资助 （JA03142）
