Sequentially amplified circularly polarized ultraviolet luminescence for enantioselective photopolymerization

Abstract Chiral optical materials based on circularly polarized luminescence (CPL) have emerged rapidly due to their feasible applications in diverse fields of research. However, limited to the small luminescence dissymmetry factor ( g lum ), real application examples have rarely been reported. Here...

Full description

Saved in:
Bibliographic Details
Published inNature communications Vol. 11; no. 1; p. 5659
Main Authors Han, Dongxue, Yang, Xuefeng, Han, Jianlei, Zhou, Jin, Jiao, Tifeng, Duan, Pengfei
Format Journal Article
LanguageEnglish
Published London Nature Publishing Group 09.11.2020
Nature Publishing Group UK
Nature Portfolio
Subjects
Amplification
Biphenyl
Cholesteric liquid crystals
Circular polarization
Complex systems
Emission
Enantiomers
Fluorescence
Functional materials
Luminescence
Nematic crystals
Optical materials
Photopolymerization
Polymerization
Room temperature
Ultraviolet radiation
Upconversion
Online AccessGet full text

Cover

More Information
Summary:Abstract Chiral optical materials based on circularly polarized luminescence (CPL) have emerged rapidly due to their feasible applications in diverse fields of research. However, limited to the small luminescence dissymmetry factor ( g lum ), real application examples have rarely been reported. Here, we present a complex system, which show intense circularly polarized ultraviolet luminescence (CPUVL) with large g lum value, enabling a chiral UV light triggered enantioselective polymerization. By integrating sensitized triplet-triplet annihilation upconversion and CPL, both visible-to-UV upconversion emission and upconverted circularly polarized ultraviolet luminescence (UC-CPUVL) were obtained in the systems, built of chiral annihilator R ( S )-4,12-biphenyl[2,2]paracyclophane ( R -/ S -TP), and a thermally activated delayed fluorescence (TADF) sensitizer. After dispersing this upconversion system into room-temperature nematic liquid crystal, induced chiral nematic liquid crystal could significantly amplify the g lum value (0.19) of UC-CPUVL. Further, the UC-CPUVL emission has been used to trigger the enantioselective photopolymerization of diacetylene. This work paves the way for the further development of functional application of CPL active materials.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:2041-1723
2041-1723
DOI:10.1038/s41467-020-19479-1