中山大学学报（自然科学版）2013，Vol.52Issue(2)：70-73,78,5.
Y2O2S:Eu3+,Zn2+,Ti4+荧光体的缺陷及红色长余辉发光性质
Red Long Lasting Phosphorescence Properties of Y2O2S: Eu3 +, Zn2 + , Ti4 +
摘要
Abstract
A novel long afterglow phosphor Y2O2S: Eu3+ , Zn2+ , Ti4+ was synthesized by the solid state method. The energy transfer between persistent luminescence centers and defect centers occurs. The structures and optical properties of Y2O2S: Eu3+, Zn2+,Y2O2S: Eu3+, Ti4+ , Y2O2S: Eu3+, Zn2+, Ti4+ and Y2O2S: Eu3+ , Mg2+, Ti4+ materials were characterized by X-ray diffraction (XRD) , photo-luminescence and excitation spectra, persistent luminescence spectra and decay curves and thermolumi-nescence. The results showed that their fluorescence properties were similar with the persistent luminescence. Their emission peaks all located at 625 nm due to 5D0→F2 transition of Eu 3+ ions. In comparison, the persistent luminescence performance of Y2O2S: Eu3+ , Zn2+ , Ti4+ sample was the best, maintaining about 1.5 h.关键词
长余辉/硫氧化钇/缺陷发光/荧光光谱/热释发光Key words
long afterglow/ yttrium oxysulfide/ defect Luminescence/ fluorescence spectrum/ thermolu- minescence分类
化学化工引用本文复制引用
朱永康,陈伟,刘宗淼,万国江,王静..Y2O2S:Eu3+,Zn2+,Ti4+荧光体的缺陷及红色长余辉发光性质[J].中山大学学报（自然科学版）,2013,52(2):70-73,78,5.基金项目
广东省重大科技专项资助项目(2012A080106005) （2012A080106005）
