Luminescent Properties of Re2SiO4∶Tm3+ (Re=Mg,Ba,Sr) Under VUV

摘要：

　　New phosphors of Tm3+ doped Re2SiO4 (Re=Mg,Ba,Sr) were prepared by the solid-state reaction and their luminescent properties were investigated.X-ray powder diffraction analysis confirmed the formation of Re2SiO4∶ Tm3+ (Re=Mg,Ba,Sr).The excitation spectra indicated that this phosphor can be effectively excited by 161 nm.It consists of peaked at 175nm and a broad excitation band from 184nm to 300nm,corresponded to the absorption of the host lattice and the O-Tm3+ charge transfer transitions.The emission peaks at about 357nm,459nm,485nm is separately corresponds to the 1D2 → 3H6,1D2 → 3H4,1G4 → 3H6 transitions of Tm3+.As the radius of alkali earth ion in Re site increases,the main emission peaks changed to 478nm from 459nm.

关键词： Phosphor Silicate Luminescence

作者: Pengzhi Lu Dawei He Xin Li Yongsheng Wang

作者单位: Key Laboratory of Luminescence and Optical Information,Ministry of Education,Institute of Optoelectronic Technology,Beijing JiaoTong University,Beijing 100044,China

会议类型: 国际会议

会议名称: The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))

会议地点: 长沙

会议语种:英文

页码: 372-374

在线出版日期: 2007-05-10（万方平台首次上网日期，不代表论文的发表时间）