摘要
采用静电纺丝技术制备了铈掺杂钇铝石榴石(cerium doped yttrium aluminium garnet,YAG:Ce)纳米纤维,利用扫描电镜观测了电纺丝纤维的微结构与形貌,利用荧光光谱仪表征了YAG:Ce电纺丝纤维的荧光性能。结果表明:在还原气氛下热处理制备YAG:Ce电纺丝纳米纤维时,在纳米纤维表面出现了一层直径为50～100 nm的球形凸起物。相比于空气气氛中,在还原气氛中热处理制备YAG:Ce纳米纤维的荧光发射强度显著增强。并且随着Ce^3+掺杂含量增加,YAG:Ce电纺丝纤维的荧光发射带发生红移。
Cerium doped yttrium aluminium garnet（YAG：Ce） nanofibers were prepared by electrospinning technique.The microstructure and morphology of electrospun nanofibers were studied by scanning electron microscope,and the luminescence properties of YAG：Ce electrospun nanofibers were investigated by luminescence spectrophotometer.When the as-prepared YAG：Ce electrospun nanofibers were calcined under reducing atmosphere,a layer of protuberant spheres with the diameter of 50-100 nm grew on the surface of YAG：Ce electrospun nanofibers.The emission intensity of the electrospun YAG：Ce nanofibers heat-treated under reducing atmosphere was stronger than that prepared in air.The emission of electrospun YAG：Ce nanofibers showed a red-shift with increasing Ce^（3＋） concentration.
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
2010年第11期2035-2039,共5页
Journal of The Chinese Ceramic Society
基金
广东省自然科学基金
国家自然科学基金(50872123
5080-2083)资助项目
关键词
铈掺杂钇铝石榴石
静电纺丝
荧光性能
形貌
cerium doped yttrium aluminium garnet
electrospinning
luminescence property
morphology
