纳米SmB6掺杂CaNb2O6橙红色荧光粉光致发光增强研究  

Investigation of Enhanced Photoluminescence in Nanocrystalline SmB6 Doped CaNb2O6 Orange-Red Phosphor

作　　者：潘晓剑 包黎红[1,2] 张红艳 朝克夫 那仁格日乐[1] PAN Xiao-jian;BAO Li-hong;ZHANG Hong-yan;CHAO Ke-fu;Narengerile(College of Physics and Electronic Information,Inner Mongolia Normal University,Hohhot 010022,China;Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials,Hohhot 010022,China)

机构地区：[1]内蒙古师范大学物理与电子信息学院,内蒙古呼和浩特010022 [2]内蒙古功能材料物理化学重点实验室,内蒙古呼和浩特010022

出　　处：《内蒙古师范大学学报（自然科学汉文版）》2020年第6期535-540,共6页Journal of Inner Mongolia Normal University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(51662034,21663018);内蒙古师范大学研究生科研创新基金资助项目(CXJJS19113)。

摘　　要：首次以纳米SmB6替代传统的Sm2O3激活剂,制备了一系列Ca1-xNb2O6:x SmB6橙红色荧光粉。采用XRD和SEM等方式对荧光粉粉末进行表征与分析,研究了Ca1-xNb2O6:x SmB6荧光粉的物相、晶体结构、颗粒形貌和光致发光特性。精修结果表明:Sm3+和B2-分别成功的替代了Ca2+和O2-的晶格位。根据光致发光实验结果,SmB6掺杂物质的量为0.04mol时,荧光粉的发光强度达到最高值,其发光强度约为使用Sm2O3激活剂的1.4倍。Ca1-xNb2O6:x SmB6荧光粉可作为白光LED中的潜在材料。We used nanocrystalline SmB6 for the first time to replace the traditional Sm2O3 as activator and prepared a series of Ca1-xNb2O6:x SmB6 orange-red phosphors.The phase,crystal structure,particle's morphology and photoluminescence properties of Ca1-xNb2O6:x SmB6 phosphors were studied through characterizing and analyzing the phosphor powder by using XRD and SEM methods.Rietveld refining results showed that Sm3+and B2-ions successfully replaced the lattice sites of Ca2+and O2-ions respectively.According to photoluminescence test results,when the doping concentration of SmB6 was 0.04mol,the luminous intensity of the phosphor reached the highest value,which was about 1.4 times that of the CaNb2O6 phosphor with Sm2O3 activator,suggesting that Ca1-xNb2O6:x SmB6 phosphors had high potential for using in white LED.

关 键 词：纳米SmB6 CaNb2O6荧光粉 白光LED 

分 类 号：TQ133.3[化学工程—无机化工]