UVC荧光粉YPO4:Bi^3+的制备及发光性能表征  

Synthesis and Luminescent Properties of YPO4:Bi^3+ UVC Phosphors

作　　者：肖勇强 陈鹏 朱月华 张娜 卓宁泽 Xiao Yongqiang;Chen Peng;Zhu Yuehua;Zhang Na;Zhuo Ningze(Institute of Electronic and Photonic Materials of Light Industry,Research Institute of Electronic and Photonic Materials,Nanjing Tech University,Nanjing 210015,China;Jiangsu Illuminating Engineering Society,Nanjing 210015,China)

机构地区：[1]南京工业大学电光源材料研究所,轻工业部南京电光源材料科学研究所,江苏南京210015 [2]江苏省照明学会,江苏南京210015

出　　处：《中国稀土学报》2020年第6期724-729,共6页Journal of the Chinese Society of Rare Earths

基　　金：国家重点研发计划项目(2017YFB0404300,2017YFB0404301);江苏省自然科学基金项目(BK20171128);江苏省科技成果转化项目(BA2017100)资助。

摘　　要：采用高温固相法合成了Y1-xPO4:xBi^3+杀菌用短波紫外(ultraviolet C,UVC)荧光粉,利用X射线粉末衍射仪(XRD)、扫描电镜(SEM)以及荧光光谱(PL)对荧光粉的晶型、表面形貌以及发光性能进行表征。实验结果表明:样品为四方锆石结构晶体,Bi3+的掺杂并没有改变荧光粉的晶型;SEM图可以看出样品颗粒均匀,形貌较好;在226 nm的激发下,Bi3+离子的最佳掺杂浓度x为0.01(摩尔分数),最佳烧结温度为1200℃,烧结时间为2 h,荧光粉发射波段在UVC区域,最佳的发射波长为241 nm,特别适用于紫外杀菌。Y1-xPO4:xBi^3+UVC phosphors for sterilization were synthesized by high temperature solid phase method.The crystal form,surface morphology and luminescent properties of the phosphors were characterized by XRD,SEM and emission spectroscopy.The results showed that the samples are tetragonal zircon crystal,and the doping of Bi3+do not change the crystal form of phosphors;SEM images showed that the sample particles are uniform and the morphology is good;under the excitation of 226 nm,the optimum doping concentration x of Bi^3+is 0.01,the optimum sintering temperature is 1200℃,and the sintering time is 2 h.The best emission wavelength is 241 nm in the UVC region,which is especially suitable for UV sterilization.

关 键 词：UVC 荧光粉 杀菌 稀土 

分 类 号：O482.31[理学—固体物理]