基于Eu^(3+)配合物纳米颗粒温敏薄膜的制备及荧光性能研究  

Preparation and Fluorescent Properties of Temperature Sensor Film Based Upon Eu^(3+) Complex Nanoparticles

作　　者：彭洪尚[1] 黄世华[1] 由芳田[1] 

机构地区：[1]北京交通大学光电子技术研究所教育部发光与光学信息重点实验室,北京100044

出　　处：《中国稀土学报》2010年第3期257-261,共5页Journal of the Chinese Society of Rare Earths

基　　金：国家自然科学基金资助项目(10774012;10874014);北京交通大学自然科学基金资助项目(2006XM038;2007XM648)

摘　　要：Eu3+配合物的发光具有针状发射峰、大的斯托克斯位移、长荧光寿命以及对温度高度敏感性等特点,这使得它们成为温度探针材料的最佳候选之一。合成了新型可以被可见光激发的Eu3+配合物(Eu-DT),在此基础上分别制备了基于Eu-DT分子和Eu-DT纳米颗粒的温敏薄膜,并对它们的荧光寿命的温度敏感性进行了测试。这两类薄膜的荧光寿命均表现出良好的温度敏感性,特别是基于纳米颗粒的温敏薄膜,由于纳米颗粒基质的保护作用,表现出更高的荧光稳定和温度敏感性。The Eu3＋ complexes had line-shape emissions,big Stokes shift,long lifetime and highly temperature sensitive emissions,which made them strong candidates for temperature probes.In this work a novel Eu3＋ complex（Eu-DT） sensitized with visible light was prepared,and the sensor films based upon Eu-DT molecules and nanoparticles were fabricated respectively.Their temperature sensitivity in fluorescence lifetimes was studied,both of which showed decreasing lifetime with temperature.Particularly,the sensor film made from Eu-DT nanoparticles had better stability against oxygen quenching and high sensitivity against temperature,which was benefited from nanotechnology.

关 键 词：Eu3+配合物 温敏薄膜 纳米颗粒 荧光寿命 稀土 

分 类 号：O482.31[理学—固体物理] O484.4[理学—物理]