摘要
采用高温固相反应方法在空气中制备了Na2SO4∶Tm3+发光材料。用X射线衍射对晶体结构进行了表征。发射光谱由Tm3+内4f12电子跃迁的窄峰组成。激发光谱分别由Tm3+离子4f12→4f11 5d跃迁(183nm),O2--Tm3+之间的电荷转移带(170nm)引起的强激发谱和基质吸收(130,223,258nm)引起的弱激发谱组成。TmF3激活无水芒硝在真空紫外的激发光谱在浓度大于8mg时有猝灭现象。
The Na2SO4∶Tm3＋ phosphor was synthesized by the high temperature solid state reaction method in air.The crystalline structure was examined by X-ray diffraction（XRD）.Narrow bands observed in emission spectra were well identified with the electronic transitions within the 4f12 configurations of Tm3＋,and the excitation spectrum is consisted of strong bands assigned to the 4f12→4f11 5d transition at 183 nm,the O2——Tm3＋ charge transfer band at 170 nm and weak bands assigned to host absorption（130,223 and 258 nm）.In addition,the authors also found that the content of Tm3＋ in the 8~16 mg concentration range caused quenching.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2011年第2期349-352,共4页
Spectroscopy and Spectral Analysis
基金
国家自然科学基金项目(10964013)
新疆维吾尔自治区自然科学基金项目(2009211A09)资助
