欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
采用水热法，以十六烷基三甲基溴化铵（CTAB）为表面活性剂，合成了NaGd（WO4）2：Eu^3＋发光材料．采集XRD，SEM图谱来表征样品的晶型与形貌，利用激发光谱和发射光谱研究了材料的发光特性．结果表明，所制得的NaGd（WO4）2：Eu^3＋是由纳米棒组成的绒球状发光材料，球体直径为100nm，纳米棒长2-5μm．样品不仅可以被紫外光（266nm）激发，还能被近紫外光（393nm）和蓝光（464nm）有效激发，其主发射峰值位于614nm，为红色荧光成分，且当Eu^3＋掺杂物质的量分数为39／6时，此发射峰达到最大，该发光粉可用于制造紫外光芯片激发的白光LED．
英文摘要：
NaGd（WO4）2：Eu^3＋ powders were prepared by a simple hydrothermal method, cetyltrimethylammonium bromide as the surfaetant. The morphology and composition of theNaGd（WO4）2：Eu^3＋ powders were characterised by SEM and XRD. The phosphorescence of the powders was measured with spectrofluorimeter. The result showed that spherical particles were synthesized with average size for 100 nm, and they consisted of nanorods with 2-5μm long. The powder could not only be excited by UV （286 nm）, but also by near-UV（a93 nm）and blue（464 nm）. There were red fluorescence composition in the emission spectrum at 814 nm, when the Eua＋ doping concentration was 3%, the emission peak at 614 nm was rela- tively high. The particles may be used for white-LED excitated bv ultraviolet chin.
同期刊论文项目
同项目期刊论文
期刊信息
位置：