铝硅酸盐掺杂稀土蓝色长余辉发光材料的研究

nds,2004,377:26822711[9] ChengkangChang,DaliMao1LonglastingphosphorescenceofSr4Al14O25∶Eu2+,Dy3+ronsputtering[J]1ThinSolidFilms,2004,460:482521图6给出了Eu2+浓度对Sr3196-xAl14-xSi0105O25∶Eux,Dy0104体系发光色的影响。调整Eu2+浓度,获得不同发射强度404nm,490nm两个峰。通过CIE软件计算出Eu2+=01015,0103,01045时色坐标分别为(01113,01211),(01110,01251)及(01110,01295)。x坐标基本不发生变化,随着Eu2+增加y坐标从01211增加到01295。因此,可通过调整Eu2+浓度,实现发光色变化可调,满足不同客户对发光颜色的要求。色坐标图Fig16 CIEchromaticitycoordinates3 结论11在Sr4Al14O25∶Eu,Dy体系中掺入微量Si并改[10] ChangCK,JiangL,MaoDL1Photo-luminescenceof4SrO・7Al2O3ceramicssinteredwiththeaidofB2O3[J]1CeramicsInternational,2004,30:28522901[11] 袁曦明,王永钱,王红梅,等1蓝色长余辉发光材料CaA12O4∶Eu2+,Dy3+的制备[J]1稀土,2003,24(2):152191[12] ProdjosantosonAK,KennedyBJ1SynthesisandevolutionofthecrystallinephasesinCa1-xSrxAl2O4[J]1JournalofSolidStateChemistry,2002,168:22922361