AgYb(MoO_(4))_(2):Er^(3+)/Tm^(3+)/Ho^(3+)稀土发光材料的水热合成及其温度传感性能  

Hydrothermal Synthesis and Temperature Sensitivity of AgYb(MoO_(4))_(2):Er^(3+)/Tm^(3+)/Ho^(3+) Rare Earth Luminescent Materials

作　　者：叶瑞 胡珊珊 杨骏[1] YE Rui;HU Shanshan;YANG Jun(School of Chemistry and Chemical Engineering,Southwest University,Chongqing 400715,China)

机构地区：[1]西南大学化学化工学院,重庆400715

出　　处：《西南师范大学学报（自然科学版）》2022年第11期1-9,共9页Journal of Southwest China Normal University(Natural Science Edition)

基　　金：国家自然科学基金(52172154),重庆市自然科学基金面上项目(cstc2020jcyj-msxmX0332).

摘　　要：为了提高Ln^(3+)离子的发射强度,Yb^(3+)离子在上转换(up conversion,UC)系统中通常用作敏化剂,在980 nm处有着广泛且强的吸收带.作为含有Yb^(3+)的基体材料,AgYb(MoO_(4))_(2)中的离子浓度更高,因此掺杂离子的发射强度更强,期待可以获得更好的温度敏感性.采用Er^(3+)掺杂后获得的材料的温度敏感性在473 K时达到0.0133 K-1,对比于相同条件下合成的NaY(MoO_(4))_(2)材料,其温度敏感性更高.并且Ho^(3+)和Tm^(3+)的共同掺杂还可以用来进行合成白光发射,即通过共掺杂Tm^(3+)后获得蓝光部分(^(1)G_(4)-^(3)H_(6)),再通过Ho^(3+)的掺杂获得红光(^(5)F_(5)-^(5)I_(8))和绿光(^(5)F_(4),^(5)S_(2)-^(5)I_(8))部分,混合这3种颜色的光就可以得到白光发射.In order to improve the emission intensity of Ln^(3+)ions,Yb^(3+)ions are usually used as sensitizers in up-conversion(UC)systems with extensive and strong absorption bands at 980 nm.As the matrix material containing Yb^(3+),the ion concentration in AgYb(MoO_(4))_(2) is higher,so the emission intensity of doped ions is stronger,and it is expected to obtain better temperature sensitivity.In this paper,the temperature sensitivity of the material obtained by doping Er^(3+)reached 0.0133 K^(-1) at 473K.Compared with NaY(MoO_(4))_(2) synthesized under the same conditions,the temperature sensitivity of AgYb(MoO_(4))_(2) was higher.In addition,the co-doping of Ho^(3+)and Tm^(3+)can also be used for the synthesis of white light emission,that is,the blue part(^(1)G_(4)-^(3)H_(6))obtained by co-doping Tm^(3+),and the red part(^(5)F_(5)-^(5)I_(8))and green part(^(5)F_(4),^(5)S_(2)-^(5)I_(8))obtained by doping Ho^(3+).Mixing these three colors of light gives white light emission.

关 键 词：稀土发光材料 能量传递 上转换 白光 温度敏感性 

分 类 号：O644.1[理学—物理化学]