物理学报2012，Vol.61Issue(14)：235-239,5.
Sr和Ba替代对Eu掺杂Ca_（2.955）Si_2O_7的结构和发光特性的影响研究
The influences of Sr or Ba substitution on the structure and luminescence properties for Ca_（2.955）Si_2O_7：0.045Eu~（2＋） phosphor
摘要
Abstract
A series of Ca_（2.955-x）M_xSi_2O_7：0.045Eu~（2＋）（M = Sr,Ba,x = 0.1—0.5） phosphors is prepared by solid-state reaction method. The influences of Sr or Ba with larger radius substitution on the structure and luminescence properties for Ca_（2.955） Si_2O_7：0.045Eu~（2＋） phosphor are investigated.The XRD results show that a small quantity of Sr or Ba substitution of Ca does not change the structure of Ca_3Si_2O_7 host which has a monoclinic crystal structure.Before the substitution,the emission peak is at about 574 nm.If the Ca~（2＋） ions are substituted by Sr~（2＋） or Ba~（2＋） ions,the emission peak is blue shifted when the Sr or Ba concentration is 0.5.In addition,for the same doping contents of Sr and Ba,the Ba doped phosphors have stronger emission intensity.关键词
固相反应法/硅酸钙荧光粉/光致发光/蓝移Key words
calcium silicate phosphor/solid-state reaction method/photoluminescence/blue shift分类
化学化工引用本文复制引用
路芳,张兴华,卢遵铭,徐学文,唐成春..Sr和Ba替代对Eu掺杂Ca_（2.955）Si_2O_7的结构和发光特性的影响研究[J].物理学报,2012,61(14):235-239,5.基金项目
国家自然科学基金 （）
河北省自然科学基金（批准号：E2011202012,E2010000084）资助的课题~~ （）
