A deep red-emitting SrB407：Sm^2＋ phosphor for light conversion agent was synthesized by the conventional solid-state reaction. X-ray powder diffraction （XRD） analysis confirmed the phase formation of SrB4OT：Sm^2...A deep red-emitting SrB407：Sm^2＋ phosphor for light conversion agent was synthesized by the conventional solid-state reaction. X-ray powder diffraction （XRD） analysis confirmed the phase formation of SrB4OT：Sm^2＋ materials. Results of luminescence properties showed that the phosphor could be efficiently excited by the UV-vis light region from 250-500 nm, and it exhibited deep red （685 nm） emis- sion corresponding to ^5D0→^7F0 transition of Sm^2＋. The critical quenching concentration of Sm^2＋ in SrB407：Sm^2＋ phosphor was about 0.05, and the corresponding concentration quenching mechanism was verified to be the dipole-dipole interaction according to the Dexter＇s theory. The decay times had few alterations with different concentrations in SrB4OT：xZm^2＋ phosphor.展开更多
基金supported by Funding Project for Academic Human Resources Development in Institutions of Higher Learning under the Jurisdiction of Beijing Municipality (PXM 2011_014213_113560,113522)the Cooperation Project in Industry,Education and Research of Guangdong Province and Ministry of Education of China (2011B090400100)
文摘A deep red-emitting SrB407：Sm^2＋ phosphor for light conversion agent was synthesized by the conventional solid-state reaction. X-ray powder diffraction （XRD） analysis confirmed the phase formation of SrB4OT：Sm^2＋ materials. Results of luminescence properties showed that the phosphor could be efficiently excited by the UV-vis light region from 250-500 nm, and it exhibited deep red （685 nm） emis- sion corresponding to ^5D0→^7F0 transition of Sm^2＋. The critical quenching concentration of Sm^2＋ in SrB407：Sm^2＋ phosphor was about 0.05, and the corresponding concentration quenching mechanism was verified to be the dipole-dipole interaction according to the Dexter＇s theory. The decay times had few alterations with different concentrations in SrB4OT：xZm^2＋ phosphor.
