化工新型材料
化工新型材料
화공신형재료
NEW CHEMICAL MATERIALS
2009年
12期
85-86,112
,共3页
无机非金属材料%YAG:Er~(3+)%高分子网络凝胶法%纳米颗粒
無機非金屬材料%YAG:Er~(3+)%高分子網絡凝膠法%納米顆粒
무궤비금속재료%YAG:Er~(3+)%고분자망락응효법%납미과립
non-metallicity%YAG:Er~(3+)%polymer network gel method%nanoparticles.
采用高分子网络凝胶法,在较低温度下制备了YAG:Er~(3+)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880℃,与YAG纳米晶粉体相比,用Er~(3+)代替Y~(3+)后,YAG:Er~(3+)纳米晶粉体还是以石榴石晶相为主,未发生明显变化;YAG:Er3~(3+)纳米晶粉体有丰富的吸收谱线,并且在260nm激发光激发下YAG:Er~(3+)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.
採用高分子網絡凝膠法,在較低溫度下製備瞭YAG:Er~(3+)納米晶粉體.分彆用熱重-差熱分析(TG-DSC)、X射線衍射(XRD)、掃描電子顯微鏡(SEM)以及激髮和髮射光譜對樣品進行瞭錶徵.結果錶明:石榴石晶相的形成溫度為880℃,與YAG納米晶粉體相比,用Er~(3+)代替Y~(3+)後,YAG:Er~(3+)納米晶粉體還是以石榴石晶相為主,未髮生明顯變化;YAG:Er3~(3+)納米晶粉體有豐富的吸收譜線,併且在260nm激髮光激髮下YAG:Er~(3+)納米晶粉體可以髮射齣377nm紫光,可以作為紫光光源的攷慮對象.
채용고분자망락응효법,재교저온도하제비료YAG:Er~(3+)납미정분체.분별용열중-차열분석(TG-DSC)、X사선연사(XRD)、소묘전자현미경(SEM)이급격발화발사광보대양품진행료표정.결과표명:석류석정상적형성온도위880℃,여YAG납미정분체상비,용Er~(3+)대체Y~(3+)후,YAG:Er~(3+)납미정분체환시이석류석정상위주,미발생명현변화;YAG:Er3~(3+)납미정분체유봉부적흡수보선,병차재260nm격발광격발하YAG:Er~(3+)납미정분체가이발사출377nm자광,가이작위자광광원적고필대상.
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 diffrac-tion(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 Y~(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.
