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

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-...

Full description

Saved in:
Bibliographic Details
Published inFrontiers in chemistry Vol. 9; p. 812461
Main Authors Cui, Chunguo, Song, Lina, Li, Chao, Lin, Tiantian, Shi, Kaiyao
Format Journal Article
LanguageEnglish
Published Frontiers Media S.A 11.01.2022
Subjects
Chemistry
electrospinning
emission quenching
Eu(III) complex
oxygen-sensing
polymer host
Online AccessGet full text

Cover

More Information
Summary: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.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
This article was submitted to Solid State Chemistry, a section of the journal Frontiers in Chemistry
Edited by: Wenwu Qin, Northeast Normal University, China
These authors have contributed equally to this work
Jijun Xu, Taizhou University, China
Reviewed by: Leonid Bochkarev, G.A. Razuvaev Institute of Organometallic Chemistry (RAS), Russia
ISSN:2296-2646
2296-2646
DOI:10.3389/fchem.2021.812461