摘要
采用高分子网络凝胶法,在较低温度下制备了YAG:Er3+纳米晶粉体。分别用热重-差热分析(TG-DSC)、X射线衍射(XRD)、扫描电子显微镜(SEM)以及激发和发射光谱对样品进行了表征。结果表明:石榴石晶相的形成温度为880oC,与YAG纳米晶粉体相比,用Er3+代替Y3+后,YAG:Er3+纳米晶粉体还是以石榴石晶相为主,未发生明显变化;YAG:Er3+纳米晶粉体有丰富的吸收谱线,并且在260nm激发光激发下YAG:Er3+纳米晶粉体可以发射出377nm紫光,可以作为紫光光源的考虑对象。
YAG：Er^3＋ nanoparticles were prepared by polymer network gel method at the lower temperature. The synthesized nanoparticles were characterized by thermogravimertry-differential thermal analysis（TG-DSC）, X-ray diffraction（XRD）, scanning electron microscopy（SEM） and fluorescence spectrometer. TG-DSC analysis demonstrared that phase pure YAG was obtained and directly formed the precursor at 880℃ ; YAG： Er^3＋ nanoparticles which replaced Y7^3＋ by Er^3＋ showed the phase-pure YAG the same as the YAG nanoparticles. YAG： Er^3＋ nanoparticles which were excitated by the 260nm laser emitted the 377nm purple ray and had the same effect as the purple lamp-house.
出处
《化工新型材料》
CAS
CSCD
北大核心
2009年第12期85-86,112,共3页
New Chemical Materials
