Pb_xNa_yY_zF_(2x+y+3z+3m)∶Er_m^(3+)上转换发光粉的低温燃烧合成及表征

Preparation of Pb_xNa_yY_zF_(2x+y+3z+3m)∶Er_m^(3+) Up-Conversion Phosphor by Low-Temperature Combustion Method and Its Characterization Analysis

采用低温燃烧合成(LCS)法一步合成了Pbx Nay Yz F2x+y+3z+3m∶Er3+m氟化物体系1 550nm响应的红外上转换发光材料.通过正交实验研究了4种阳离子影响发光性能的主次关系及最佳配比,研究了燃料用量对晶相形成及上转换发光性能的影响.采用X射线粉末衍射仪、透射电镜、荧光分光光度计(耦合1550nm激光器)等手段对样品的物相、形貌及发光性能进行了测试与表征.结果表明:阳离子含量对红光发射强度影响的主次关系为Y3+,Pb2+,Na+,Er3+,最佳配比为Pb0.004Na0.003Y0.003F0.032∶Er3+0.004.燃料取2.5倍理论用量时样品的结晶度和发光强度最高.

This paper reports the synthesized fluoride infrared up-conversion material Pbx Nay Yz F2x＋y＋3z＋3m ：Er3＋m sensitive to 1550nm by LCS method and its characteristic analysis.The effects of the content of cations and the amount of fuel on the luminescence properties were studied through orthogonal experiments.The measures of X-ray diffractometer,field emission scanning electron microscope and fluorescence spectrometer coupled with a 1550nm laser were used to test and characterize the samples＇phase,morphology and luminescence properties,respectively.The results show that,the element of cation content that affects the red emission intensity is Y3＋,Pb2＋,Na＋,Er3＋ in sequence,the optimum formula is Pb0.004 Na0.003 Y0.003 F0.032 ：Er3＋0.004,and the optimum amount of carbamide fuel is 2.5 stoi.