稀土钇对Eu(TTA)3phen/PMMA温敏特性的影响  

Effect of Rare Earth Yttrium on Temperature-sensitive Property ofEu(TTA)3 phen/PMMA

作　　者：宋亚娇 于佳[1] 吴伟斌 于洪翠 刘景林[1] SONG Yajiao;YU Jia;WU Weibin;YU Hongcui;LIU Jinglin(Inner Mongolia Key Laboratory of Chemistry for Natural Products and Synthesis for Functional Molecules,College of Chemistry and Materials Science,Inner Mongolia Minzu University,Tongliao 028000,Inner Mongolia,China)

机构地区：[1]内蒙古民族大学化学与材料学院,内蒙古自治区天然产物化学及功能分子合成重点实验室,内蒙古通辽028000

出　　处：《材料导报》2023年第20期189-193,共5页Materials Reports

基　　金：内蒙古自然科学基金(2023LHMS02005,2019BS02009);内蒙古民族大学博士科研启动基金(BS397,BS425)。

摘　　要：温敏漆测温技术因具有非接触式、全方位测量、制造以及使用方便简单等优点被广泛应用于大面积固体场温度分布测量,尤其是对飞行器周围复杂流动气体力学行为的深入研究。本工作以稀土钇离子(Y^(3+))掺杂的噻吩甲酰基三氟丙酮邻菲罗啉铕配合物(Eu(TTA)3phen)为探针分子,以聚甲基丙烯酸甲酯(PMMA)为漆基合成了Y^(3+)掺杂Eu(TTA)3phen/PMMA温敏漆,并对探针分子的结构和温敏漆的光学性质进行了研究。研究结果表明,Eu^(3+)和Y^(3+)的最佳配比为0.5∶0.5(物质的量比),稀土离子与配体配位成键,Y^(3+)的掺杂未影响Eu(TTA)3phen结构;Y^(3+)对Eu(TTA)3phen/PMMA温敏漆荧光发射具有增益作用;Y^(3+)掺杂Eu(TTA)3phen/PMMA温敏漆的最强荧光发射峰(616 nm)强度随着温度升高而减弱,说明温度为40~80℃时,Y^(3+)掺杂Eu(TTA)3phen/PMMA温敏漆具有温度猝灭性质。此外,Y^(3+)的掺杂能够提高温敏漆的相对荧光强度变化率及测温灵敏度,因此,Y^(3+)掺杂Eu(TTA)3phen/PMMA温敏漆作为一种新型热敏材料,在光电器件等方面具有潜在应用价值。The temperature sensitive paint(TSP)technology is widely used in the temperature distribution measurement of large area solid field,especially for the in-depth research in the mechanical behavior of complex flow gas around the aircraft,because of its advantages of non-contact,omni-directional measurement,easy manufacture and use.In this work,we synthesized the rare earth iron(Y^(3+))doped Eu(TTA)3 phen/PMMA temperature sensitive paint successfully based on the probe molecules of Y^(3+)doped Eu(TTA)3phen and polymethyl methacrylate(PMMA).The structure of probe molecules and the fluorescence properties of TSP were also characterized.The result show that the optimal ratio of rare earth ions is 0.5∶0.5,both of rare earth irons are coordinated with ligands and the doping of Y^(3+)do not affect the structure of Eu(TTA)3 phen.Y^(3+)has a gain effect on the fluorescent emission of Eu(TTA)3 phen/PMMA and the intensity of the strongest fluorescence emission peak(616 nm)is decreased with the increasing of temperature,which indicate that the Y^(3+)doped Eu(TTA)3phen/PMMA have temperature quenching properties in the temperature range of 40—80℃.What’s more,the doping of Y^(3+)can improve the change rate of the fluorescent intensity and the temperature measurement sensitivity.Hence,as a new thermal sensitive material,the Y^(3+)doped Eu(TTA)3phen/PMMA temperature sensitive paint has potential applications in photoelectric devices and other aspects.

关 键 词：温敏漆 稀土离子 探针分子 

分 类 号：O614.33[理学—无机化学]