上转换发光氟化物纳米颗粒的制备及性能研究  

Preparation and Properties of Upconversion Luminescent Fluoride Nanoparticles

作　　者：李可[1] 胡利利[1] 葛炜琳 李书静[1] LIKe HU Li-li GE Wei-lin LI Shu-jing(College of Chemistry and Chemical Engineering, Zhoukou Normal University, Henan Zhoukou 466000, Chin)

机构地区：[1]周口师范学院化学化工学院,河南周口466000

出　　处：《广州化工》2017年第1期51-52,103,共3页GuangZhou Chemical Industry

基　　金：河南省基础与前沿技术研究项目(142300410363);周口师范学院青年科研基金项目(zknuc0210)

摘　　要：上转换发光纳米颗粒可潜在应用于激光、显示、防伪印刷、生物成像分析等方面,其中尤以氟化物体系性能最为突出。本文使用水热法(溶剂热法)合成上转换发光NaYF_4:Yb^(3+),Er^(3+)纳米材料,并使用X射线粉末衍射仪、扫描电子显微镜、上转换荧光光谱仪对纳米晶体的形貌及发光强度的大小进行表征,结果表明反应温度、时间、表面活性剂等条件下对合成产物的物相、粒径、上转换发光性能均由较大影响。Upconversion luminescence nanomaterials have potential applications in laser,displayer,anti- forgery printing,biologic imaging,etc,and fluorides have a significant advantage among them. Upconversion luminescence NaYF_4： Yb^（3＋）,Er^（3＋） nanomaterials were synthesized using hydrothermal（ solvothermal） method,and the nanocrystal morphology and luminescence intensity were characterized using XRD,SEM,UCPL and UV- Vis diffuse reflectance absorption spectra. The results indicated that reaction temperature,time and surfactant had obvious effects on the phases,particle sizes and upconversion luminescence properties of the synthesized products.

关 键 词：上转换发光 氟化物 水热法 

分 类 号：O613.6[理学—无机化学]