发光学报2017，Vol.38Issue(3)：269-273,5.DOI:10.3788/fgxb20173803.0269
Eu3+掺杂5Li2O-1Nb2O5-5TiO2发光陶瓷的制备及性能研究
Preparation and Properties of Eu-doped 5Li2O-1Nb2O5-5TiO2 Ceramics
摘要
Abstract
Eu-doped 5Li2O-1Nb2O5-5TiO2 (LNT) luminescent dielectric ceramics were synthesized by solid state reaction method with Li2CO3,Nb2O5,TiO2 and Eu2O3 as raw materials.The properties of LNT:0.2%Eu3+(mass fraction)ceramics were characterized by density test,X-ray diffraction(XRD) and photoluminescence spectroscopy,respectively.The XRD results show that the ceramics sintered at 1 120 ℃ consist of 'M-phase' and Li2TiO3 solid solution,no other miscellaneous phase.Under 400 nm excitation,strong red-orange luminescence can be observed.The red emission at 615 nm belonging to 5D0→7F2 transition is an electric dipole transition,while the orange emission at 592 nm corresponding to 5D0→7F1 transition is a typical magnetic dipole allowed transition.关键词
固相法/Eu3+掺杂/发射光谱/激发光谱Key words
solid state reaction method/Eu-doped/emission spectrum/excitation spectrum分类
数理科学引用本文复制引用
王飞,周志勇,曾群,周鹤,姚春凤..Eu3+掺杂5Li2O-1Nb2O5-5TiO2发光陶瓷的制备及性能研究[J].发光学报,2017,38(3):269-273,5.基金项目
广州市珠江科技新星项目(201506010001) （201506010001）
中国科学院无机功能材料与器件重点实验室开放课题(KLIFMD-2015-03) （KLIFMD-2015-03）
华南师范大学研究生科研创新基金(2015lkxm16,2016lkxm63)资助项目 Supported by Pearl River Science and Technology Nova Project of Guangzhou City(201506010001) （2015lkxm16,2016lkxm63）
Open Program of Key Laboratory of Inorganic Functional Materials and Devices of Chinese Academy of Sciences(KLIFMD-2015-03) （KLIFMD-2015-03）
Scientific Research Foundation of Graduate School of South China Normal University(2015lkxm16,2016lkxm63) （2015lkxm16,2016lkxm63）
