Luminescence properties of a solid solution typed(Ba,Ca)_3MgSi_2O_8: Eu^(2+), Mn^(2+)phosphor with a 660 nmfeatured photosynthetic action spectrum  

作　　者：宋俊 孙亮 李建 马健 王达健 

机构地区：[1]Institute of Materials Physics, Tianjin University of Technology [2]Tianjin Key Laboratory for Photoelectronic Materials and Devices,Tianjin University of Technology [3]Tianjin Key Laboratory for Photoelectronic Materials and Devices, Tianjin University of Technology [4]Key Laboratory of Display Materials and Photoelectronic Devices,Ministry of Education,Tianjin University of Technology

出　　处：《Optoelectronics Letters》2014年第5期343-346,共4页光电子快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.21076161)

摘　　要：A solid-solution-phase Ba1.75Ca1.25MgSi2O8： Eu2＋, Mn2＋ phosphor in the photosynthetic action spectrum with dual band emissions at 438 nm and 660 nm is fabricated. X-ray diffraction （XRD） confirms the presence of the solid-solution phase. With the supporting information from the diffuse reflection spectrum, a feasible way to obtain higher energy-transfer （ET） efficiency is attained, and the ET efficiency of Eu2＋-Mn2＋ is enhanced to 76%. The mechanism of this enhancement is owing to variation of the solid solution composition of Ca3MgSi208 and Ba3MgSi2Os, which contributes to the extension of the critical distance. Temperature-dependent results show an en- hancement which is attributed to Ca. These enhancements show great promise for improving coo-lighting devices.

关 键 词：Light emission MANGANESE PHOSPHORS Solid solutions X ray diffraction 

分 类 号：O482.31[理学—固体物理]