期刊
INORGANIC CHEMISTRY
卷 58, 期 6, 页码 3780-3788出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.8b03319
关键词
-
资金
- National Natural Science Foundation of China [11674044, 61671091, 61471075]
- Natural Science Foundation of Chongqing [CSTC2017jcyjAX0046, KJ1600406, KJ1704071, KJZD-K201800602]
A series of lanthanide organic complexes, namely, [Ln(2)PDC(3)(H2O)(3)]H2O (Ln = Eu, Tb, EuxTb2-x,H2PDC: pyridine-3,5-dicarboxylic acid), were synthesized via hydrothermal method. Eu-PDC was characterized by single-crystal X-ray diffraction. The powder X-ray diffraction, Fourier transform infrared spectra, and thermogravimetric analysis illustrate that EuPDC, Tb-PDC, and EuxTb2-x-PDC complexes are isostructural. All the complexes exhibit strong emission even though water molecules coordinated in the structure. Tunable emission color from green, yellow to red is realized by adjusting the Eu/Tb ratio in mixed EuxTb2_x-PDC complexes. Energy transfer from Tb to Eu' is discussed in detail via fluorescence decay and time resolution spectra. The detailed energy transfer process sees that the emitting color of Eu0.15Tb1.85-PDC shifts from green to orange in a time interval of 153-790 ps. In addition, temperature-dependent emission of the EuososTbi.9s-PDC complex indicates that it is a potential solid state material for a luminescence thermometer in the range of 293-333 K. The temperature resolution is less than 0.16 K. The optical properties of the EuTb-PDC complex indicate that it is a multifunctional luminescent material with promising applications in temperature sensing, time resolution imaging, lighting, and displaying.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据