Effects of Sm3+ Doping on the Photoluminescence Properties of Ca9Eu1-xSmx(VO4)7 Red-Emitting Phosphors
This paper reports the photoluminescence properties of Ca9Eu1-xSmx(VO4)7 (x=0.2-0.4) synthesized at 1250 ℃ in air for 12 h using traditional solid-state reaction method.With the increase of Sm3+ substitution amount,purity Ca9Eu1-xSmx(VO4)7 phase was obtained even when Eu3+ were totally substituted by Sm3+.The experimental results showed that when Sm3+ was codoped with Eu3+ into Ca9Eu1-xSmx(VO4)7 crystal structure,Sm3+ would act as a sensitizer and transfer the excitation energy to Eu3+ and finally enhance the emission intensity of Ca9Eu1-xSmx(VO4)7 under 405 nm excitation,which leads to more favorite of this kind of phosphor used in UV LED based white LEDs.
Vanadate Red-emitting Sensitizer Phosphor
Lihong Liu Rong-iun Xie Xudong Sun Qing Huang Naoto Hirosaki
Structural and Functional Integration of Ceramics Group,the Division of Functional Materials and Nan Sialon Group,Sialon Unit,National Institute for Materials Science,Namiki 1-1,Tsukuba,Ibaraki 305-004 Key Laboratory for Anisotropy and Texture of Materials(Ministry of Education),School of Materials an Structural and Functional Integration of Ceramics Group,the Division of Functional Materials and Nan
国际会议
The Seventh China International Conference on High-Performance Ceramics (第七届先进陶瓷国际研讨会(CICC-7))
厦门
英文
1488-1493
2011-11-04(万方平台首次上网日期,不代表论文的发表时间)