CaSnO_3:Yb~(3+),Er~(3+),Li~+的反能量传递与热效应Energy Back Transfer and Thermal Effect of CaSnO_3:Yb~(3+),Er~(3+),Li~+
彭文博;庞涛;
摘要(Abstract)：
以CaSnO_3:Yb(3+),Er(3+),Er(3+),Li+作为研究对象,借助光谱分析法研究Yb(3+),Li+作为研究对象,借助光谱分析法研究Yb(3+)浓度有关的能量传递和热效应.结果发现:Yb(3+)浓度有关的能量传递和热效应.结果发现:Yb(3+)到Er(3+)到Er(3+)的反能量传递随Yb(3+)的反能量传递随Yb(3+)浓度的增加而加强,有助于提升光谱的红色占比;浓度增加的Yb(3+)浓度的增加而加强,有助于提升光谱的红色占比;浓度增加的Yb(3+)吸收更多的红外光子,并大部分通过无辐射跃迁转化为热能,使样品的温度随着Yb(3+)吸收更多的红外光子,并大部分通过无辐射跃迁转化为热能,使样品的温度随着Yb(3+)浓度的增加而升高,进而抑制光谱的红色占比.该研究结果可用于指导Yb(3+)浓度的增加而升高,进而抑制光谱的红色占比.该研究结果可用于指导Yb(3+)/Er(3+)/Er(3+)共掺系统上转换发光颜色的调控.
关键词(KeyWords)： 上转换;热效应;能量传递;Yb3+敏化
基金项目(Foundation): 湖州师范学院校级项目(2016XJXM23;JGB027)
作者(Authors): 彭文博;庞涛;
参考文献(References)：
- [1]CHEN D Q,CHEN Y,LU H W,et al.A bifunctional Cr/Yb/Tm:Ca3Ga2Ge3O12 phosphor with near-infrared longlasting phosphorescence and upconversion luminescence[J].Inorg Chem,2014,53:8 638-8 645.
- [2]GAVRILOVICA T V,JOVANOVICA D J,SMITSB K,et al.Multicolor upconversion luminescence of GdVO4:Ln3+/Yb3+(Ln3+=Ho3+,Er3+,Tm3+,Ho3+/Er3+/Tm3+)nanorods[J].Dyes Pigments,2016,126:1-7.
- [3]CHEN D Q,ZHOU Y,WAN Z Y,et al.Tunable upconversion luminescence in self-crystallized Er3+:K(Y1-xYbx)3F10nano-glass-ceramics[J].Phys Chem Chem Phys,2015,17:7 100-7 103.
- [4]PANG T,CAO W H,XING M M,et al.Design and achieving mechanism of upconversion white emission based on Yb3+/Tm3+/Er3+tri-doped KY3F10nanocrystals[J].Opt Mater,2011,33:485-489.
- [5]WU J L,CAO B S,LIN F,et al.A new molybdate host material:synthesis,upconversion,temperature quenching and sensing properties[J/OL].(2016-09-10).Http:∥dx.doi.org/10/1016/j.ceramint,2016.09.004.
- [6]PANG T,LU W H.The influence of thermal effect induced by Yb3+sensitization on color regulation in Gd2O3:Yb3+,Er3+upconversion phosphors[J/OL].(2016-10-07).Http:∥dx.doi.org/10.1016.j.ceramint,2016.10.040.
- [7]PANG T,LU W H,SHEN W J.Chromaticity modulation of upconversion luminescence in CaSnO3:Yb3+,Er3+,Li+phosphors through Yb3+concentration,pumping power and temperature[J].Physica b,2016,502:11-15.
- [8]LEI Y Q,SONG H W,YANG L M,et al.Upconversion luminescence,intensity saturation effect,and thermal effect in Gd2O3:Er3+,Yb3+nanowires[J].J Chem Phys,2005,123:174710.
- [9]XU S,XIANG S Y,ZHANG Y Q,et al.808nm laser induced photothermal effect on Sm3+/Nd3+doped NaY(WO4)2microstructures[J].Sensors and Actuators B,2017,24:386-391.