Photophysical Details and O2-Sensing Analysis of a Eu(III) Complex in Polymer Composite Nanofibers Prepared by Electrospinning

被引：1
作者：
Cui, Chunguo [1 ]
Song, Lina [2 ]
Li, Chao [3 ]
Lin, Tiantian [3 ]
Shi, Kaiyao [3 ]
机构：
[1] Jilin Univ, Dept Breast Surg, China Japan Union Hosp, Changchun, Peoples R China
[2] Jilin Univ, Dept Lab, Jilin Prov Drug Resistance Monitoring Ctr, Accredited Lab,China Japan Union Hosp, Changchun, Peoples R China
[3] Jilin Univ, China Japan Union Hosp, Jilin Prov Engn Lab Endothelial Funct & Genet Dia, Prov Key Lab Gene Diag Cardiovasc Dis,Dept Cardio, Changchun, Peoples R China
来源：
FRONTIERS IN CHEMISTRY | 2022年 / 9卷
关键词：
Eu(III) complex; oxygen-sensing; electrospinning; emission quenching; polymer host; PHOTOLUMINESCENCE PROPERTIES; LUMINESCENT PROPERTIES; EUROPIUM COMPLEXES; EU3+ COMPLEXES; III COMPLEX; SENSOR; CONJUGATE; RUTHENIUM; HYBRIDS; PH;
D O I：
10.3389/fchem.2021.812461
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
An as-synthesized Eu(III) complex, denoted as Eu(N-DPNQ)(TTD)(3), was prepared and characterized, and the antenna mechanism between these ligands and central metal emitter was studied. Here DPNQ means 10-ethyl-10H-indolo [2 ',3':5,6]pyrazino[2,3-f][1,10]phenanthroline and TTD is 4,4,4-trifluoro-1-(thiophen-2-yl)butane-1,3-dione. We find that Eu(N-DPNQ)(TTD)(3) emission intensity dependents on oxygen concentration, and O-2-sensing skill of Eu(N-DPNQ)(TTD)(3) in polymer composite nanofibers of poly (vinylpyrrolidone) (PVP) prepared by electrospinning is investigated. Results reveal that the emission quenching of Eu(N-DPNQ)(TTD)(3) is caused by the ground state (triplet) oxygen quenching on antenna ligands triplet state. The Eu(N-DPNQ)(TTD)(3) doped composite nanofiber with a loading level of 6 wt% exhibits the best result with sensitivity of 2.43 and response time of 10 s, along with linear response.
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页数：9
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