Controllable precipitation and photoluminescence of efficient green-emitting crystalline phase from luminescent CaO-SiO_2 glass-ceramic system  

作　　者：田华 王达健 刘技文 

机构地区：[1]School of Materials Science and Engineering,Tianjin University [2]School of Materials Science and Engineering,Tianjin University of Technology [3]Tianjin Key Laboratory for Photoelectronic Materials and Devices,Tianjin University of Technology

出　　处：《Optoelectronics Letters》2012年第1期37-39,共3页光电子快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.50872091 and 21076161);the Key Discipline of Materials Physics and Chemistry of Tianjin(Nos.2006ZD30 and 10SYSYJC28100)

摘　　要：A new kind of glass-ceramic phosphor, which contains crystalline phases with green emissions, is explored. The glassceramic is prepared through semi-melt-quenching procedure with a nominal composition of （Ca0.99Eu0.01）3Si2O7. The greenemitting crystals are precipitated and identified to be β-Ca2SiO4： Eu2＋ which is responsible for 510 nm-peaked much broader band emissions holding at 1550 ℃ for half an hour. In terms of the available light scattering theory, the appearance of opaque is discussed by closely associating with size and morphology of luminous β-Ca2SiO4 crystalline phase in glass.

关 键 词：Calcium EUROPIUM Secondary batteries Silicon compounds 

分 类 号：TN104.3[电子电信—物理电子学]