摘要
采用高温固相法合成了一种新型单基质Sr3-2xLi1+xMgV3O12∶xEu3+荧光粉,研究了其在不同的合成温度及Eu3+掺杂浓度等条件下的发光性能。利用X射线衍射仪(XRD)、扫描电镜(SEM)和荧光光谱仪(PL)等对样品进行表征。荧光光谱表明Sr3-2xLi1+xMgV3O12∶xEu3+荧光粉具有与近紫外芯片相匹配的激发光谱,其宽阔的发射光谱(450～630nm)使得该类物质具有作为白光LED用单基质荧光粉的巨大优势。
A novel broadband emission phosphor Sr3-2xLi1＋xMgV3O12∶xEu3＋ was synthesized by a solid-state reaction method.Then discussed the luminous property under the influence of temperature and doping density of Eu3＋,was discussed.X-ray diffraction（XRD）,scanning electron microscopy（SEM）,and photoluminescence spectra were used to characterize the feature of Sr3-2xLi1＋xMgV3O12∶xEu3＋.The excitation and emission spectra exhibit that the phosphor of Sr3-2xLi1＋xMgV3O12∶xEu3＋ matches with nearly ultraviolet chip.The emission band covers from 450 to 630 nm,which shows that the phosphor is promising single-phase phosphors for white LED.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2013年第4期945-948,共4页
Spectroscopy and Spectral Analysis
基金
浙江省自然科学基金项目(Y1110777)
国家自然科学基金项目(61006051
61177050)资助
