【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。更多还原

【Abstract】 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.更多还原