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| Effects of Rare Earths (Gd3+, La3+) on Fluorescence and Temperature Sensitivity of Eu(p-MOBA)3phen/PMMA |
| Author Name | Affiliation | E-mail | | TANG Juan | School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Jilin Province Optical Materials and Chemical Technology Innovation Center, Joint Sino-Russian Laboratory of Optical Materials and Chemistry, Changchun 130022, China | | | SUN Jing | School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Jilin Province Optical Materials and Chemical Technology Innovation Center, Joint Sino-Russian Laboratory of Optical Materials and Chemistry, Changchun 130022, China | sj-cust@126.com | | ZHOU Chen | School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Jilin Province Optical Materials and Chemical Technology Innovation Center, Joint Sino-Russian Laboratory of Optical Materials and Chemistry, Changchun 130022, China | | | ZHAO Ying | School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Jilin Province Optical Materials and Chemical Technology Innovation Center, Joint Sino-Russian Laboratory of Optical Materials and Chemistry, Changchun 130022, China | | | GUO Xin | School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Jilin Province Optical Materials and Chemical Technology Innovation Center, Joint Sino-Russian Laboratory of Optical Materials and Chemistry, Changchun 130022, China | | | YIN Yu-Ting | School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Jilin Province Optical Materials and Chemical Technology Innovation Center, Joint Sino-Russian Laboratory of Optical Materials and Chemistry, Changchun 130022, China | |
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| Abstract: The different rare earth (Gd3+, La3+) doped Eu(p-MOBA)3phen probe molecules were prepared by using rare earth oxides (Eu2O3, Gd2O3, La2O3), p-methoxybenzoic acid (p-MOBA) and phenanthroline (phen). The different rare earth (Gd3+, La3+) doped Eu(p-MOBA)3phen/PMMA temperature sensitive paints (TSPs) were fabricated by mixing the probe molecules with methyl methacrylate (MMA) and initiating polymerization with benzoyl peroxide (BPO). The morphology, structure, luminescence properties of the probe molecules, and the fluorescence temperature quenching property of the TSPs were characterized by scanning electron microscopy, UV-Vis absorption spectra, infrared spectrometer and fluorescence spectra. The infrared spectrum, UV-Vis absorption spectra and scanning electron microscopy spectra show that Eu3+ was successfully coordinated with the ligands p-MOBA and phen, and the structure of Eu(p-MOBA)3phen was not changed when doped with rare earth ions (Gd3+, La3+), indicating that the doping of rare earth ions (Gd3+, La3+) partially replaced Eu3+. The fluorescence spectrum shows that the addition of rare earth ions (Gd3+, La3+) have a gain effect on the luminescence of Eu(p-MOBA)3phen, and the corresponding TSPs have good fluorescence temperature quenching property in the temperature range of 50~100℃. Compared with La3+ doped Eu(p-MOBA)3phen/PMMA, Gd3+ doped Eu(p-MOBA)3phen/PMMA has stronger fluorescence emission and higher temperature sensitivity. It can be seen that different rare earths (Gd3+, La3+) have different effects on the fluorescence and temperature sensitivity properties of Eu(p-MOBA)3phen/PMMA. |
| Keywords: rare earth temperature sensitive paint probe molecule fluorescence temperature quenching |
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| TANG Juan,SUN Jing,ZHOU Chen,ZHAO Ying,GUO Xin,YIN Yu-Ting.Effects of Rare Earths (Gd3+, La3+) on Fluorescence and Temperature Sensitivity of Eu(p-MOBA)3phen/PMMA[J].Chinese Journal of Inorganic Chemistry,2020,36(8):1485-1491. |
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