Visible-to-UV photon upconversion in air-saturated water by multicomponent co-assembly

Air-stable, visible-to-UV photon upconversion based on triplet-triplet annihilation (TTA-UC) in water has been an outstanding issue despite its importance in a wide range of applications. This is achieved by giving oxygen barrier properties to cationic acceptor self-assemblies through ion complex fo...

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Bibliographic Details
Published inMolecular systems design & engineering Vol. 5; no. 4; pp. 792 - 796
Main Authors Kawashima, Yusuke, Kouno, Hironori, Orihashi, Kana, Nishimura, Koki, Yanai, Nobuhiro, Kimizuka, Nobuo
Format Journal Article
LanguageEnglish
Published Cambridge Royal Society of Chemistry 11.05.2020
Subjects
Complex formation
Emission spectra
Fatty acids
Food packaging
Photons
Upconversion
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Summary:Air-stable, visible-to-UV photon upconversion based on triplet-triplet annihilation (TTA-UC) in water has been an outstanding issue despite its importance in a wide range of applications. This is achieved by giving oxygen barrier properties to cationic acceptor self-assemblies through ion complex formation with anionic fatty acids, i.e. , supramolecular crowding. Visible-to-UV TTA-based photon upconversion in aerated water is achieved for the first time by utilizing oxygen blocking ability of dense multicomponent supramolecular co-assemblies.
Bibliography:10.1039/d0me00003e
Electronic supplementary information (ESI) available: Experimental details, TTA-based UC mechanism, absorption and emission spectra. See DOI
ISSN:2058-9689
2058-9689
DOI:10.1039/d0me00003e