摘要
本文研究了具有长余辉发光特性的红色Mg_3BO_3F_3:Mn^(2+),R^(3+)(R=Eu,Sm,Dy)的阴极射线发光性能,以及R^(3+)离子的掺杂对Mg_3BO_3F_3:Mn^(2+)的发射光谱、色坐标等的影响.
The long persistence phosphor of Mg3BO3F3:Mn2+ doped with rare earth ions R3 + (Eu3 + ,Sm3+ and Dy3 + )was synthesized by solid-state reaction at 1100???CCCCCCCC. The optimum concentrations ot R3+ for preparating samples were examined. The cathodoluminescence propertiers of the longer persistence (TTTTTTTTT = 210ms) phosphors Mg3EO3F3:Mn2 + ,R3+ were investigated.It is found that Eu3+ and Sm3 + ions affect the emission spectrum and color coordinates of Mg3BO3F3:Mn2 + phosphor. The narrow emissions ot Eu3 + and Sm3+ ions overlap on a broad emission band of Mn2 + ion in these phosphors. From Fig.3 and Fig.4 it can be seen that the narrow emissions of Eu3+ and Sm3 + ions in Mg3BO3F3:Mn2 + are located at 613nm corresponding to 5D0-7F2 transition of Eu3+ and at 651nm of Sm3+4G5/2-6H9/2 transition respectively.The brightness of red Mg3BOsF3 Mn,R3+ phosphors depends linearly on the acceleration voltage.
出处
《发光学报》
EI
CAS
CSCD
北大核心
1991年第3期212-216,共5页
Chinese Journal of Luminescence
基金
国家自然科学基金
