微波法快速可控合成红光发射的NaYF_(4):Yb^(3+)/Er^(3+)上转换纳米材料  

Rapid and controllable synthesis of red-emitting NaYF_(4):Yb^(3+)/Er^(3+)up-conversion nanomaterials by microwave method

作　　者：康春杨 左显维[2] 韩根亮[2] 宋青[1] 陈云琳 KANG Chunyang;ZUO Xianwei;HAN Genliang;SONG Qing;CHEN Yunlin(School of Mathematics and Physics,Lanzhou Jiaotong University,Lanzhou 730070,China;Institute of Sensor Technology,Gansu Academy of Sciences,Lanzhou 730000,China;Institute of Applied Micro-Nano Materials,School of Science,Beijing Jiaotong University,Beijing 100044,China)

机构地区：[1]兰州交通大学数理学院,兰州730070 [2]甘肃省科学院传感技术研究所,兰州730000 [3]北京交通大学理学院,微纳材料及应用研究所,北京100044

出　　处：《功能材料》2022年第9期9091-9097,共7页Journal of Functional Materials

基　　金：国家自然科学基金项目(21864003);甘肃省科学院科技产业化项目(2019 CY-11)。

摘　　要：采用单模微波法快速合成了红光发射的NaYF_(4):Yb^(3+)/Er^(3+)上转换纳米材料,探讨了反应温度、反应时间、反应溶剂以及掺杂离子浓度对目标产物合成的影响,并通过TEM,XRD和荧光光谱对所得样品的形貌、结构及发光性能进行了表征。结果表明,该方法能高效制备平均粒径为50 nm、具有立方相结构的NaYF_(4):Yb^(3+)/Er^(3+)上转换纳米材料,其在980 nm激光激发下,当Yb^(3+)和Er^(3+)掺杂浓度为20%和2%时,呈现强红光发射。通过创新发光材料的合成方法实现了强红光发射上转换纳米材料在10 min内的简单快速合成,显著提高了材料的合成效率。该研究合成的纳米材料在生物标记、细胞成像、生物检测等领域也具有巨大的应用前景。In this work,a novel red-emitting NaYF_(4):Yb^(3+)/Er^(3+)up-conversion nanomaterials were rapidly synthesized by single-mode microwave method.The effects of different experiment parameter including reaction temperature,reaction time,solvents,and the concentration of doping ions were investigated and optimized.The morphology,structure and luminescence properties of the samples were characterized by TEM,XRD and fluorescence spectra.The results showed under the optimal conditions,that microwave method could controllably synthesized NaYF_(4):Yb^(3+)/Er^(3+)up-conversion nanomaterials with average particle size of 50 nm and a cubic phase structure.Under the excitation of 980 nm laser,NaYF_(4):Yb^(3+)/Er^(3+)up-conversion nanomaterials exhibited strong red light emission when the concentration of doping ions were 20%Yb^(3+)and 2%Er^(3+),respectively.By innovating the synthesis method of luminescent materials,this work provided a novel method to simply synthesize the strong red light emitting up-conversion nanomaterials within 10 min,which significantly improved the synthesis efficiency of the materials.The up-conversion nanomaterials synthesized in this study also have great application prospects in the fields of biomarker,cell imaging,biological detection and so on.

关 键 词：微波法 NaYF_(4):Yb^(3+)/Er^(3+) 上转换纳米材料 可控合成 红色上转换发光 

分 类 号：O483.2[理学—固体物理]