Datum
2021-05-11Metadata
Zur Langanzeige
Aufsatz
Polarization Dependent Photoinduced Supramolecular Chirality in High-Performance Azo Materials
Zusammenfassung
Here, we will show photo-induced supramolecular chirality in thin films of achiral amorphous polymers with azo groups in their side-chain. A matter of particular interest is the effect of various film thicknesses on azimuthal rotation and ellipticity of incident/transmitted polarized light. Furthermore, we investigated the temporal stability of inscribed chirality. By polarimetric measurements, we found out that the azimuthal rotation gets higher with layer thickness. In this scope, we were able to measure a very high azimuthal rotation of Δψ/d=112.5∘/μm. The inscribed chirality was stable for several days. Furthermore, we investigated the time-resolved behavior of incident and transmitted polarization ellipticities for various thicknesses. The time dependency may be explained by a two-step process: (1) fast trans-cis-isomerization resulting in photo-orientation and (2) slow photo-induced mass flow.
Zitierform
In: Molecules Volume 26 / Issue 10 (2021-05-11) eissn:1420-3049Förderhinweis
Gefördert durch den Publikationsfonds der Universität KasselZitieren
@article{doi:10.17170/kobra-202105183911,
author={Bagatur, Sekvan and Schlesag, Marcel and Fuhrmann-Lieker, Thomas},
title={Polarization Dependent Photoinduced Supramolecular Chirality in High-Performance Azo Materials},
journal={Molecules},
year={2021}
}
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2021-08-04T11:49:17Z 2021-08-04T11:49:17Z 2021-05-11 doi:10.17170/kobra-202105183911 http://hdl.handle.net/123456789/13075 Gefördert durch den Publikationsfonds der Universität Kassel eng Namensnennung 4.0 International http://creativecommons.org/licenses/by/4.0/ azo materials supramolecular chirality polarimetry azo polymers polarization lithographie 540 Polarization Dependent Photoinduced Supramolecular Chirality in High-Performance Azo Materials Aufsatz Here, we will show photo-induced supramolecular chirality in thin films of achiral amorphous polymers with azo groups in their side-chain. A matter of particular interest is the effect of various film thicknesses on azimuthal rotation and ellipticity of incident/transmitted polarized light. Furthermore, we investigated the temporal stability of inscribed chirality. By polarimetric measurements, we found out that the azimuthal rotation gets higher with layer thickness. In this scope, we were able to measure a very high azimuthal rotation of Δψ/d=112.5∘/μm. The inscribed chirality was stable for several days. Furthermore, we investigated the time-resolved behavior of incident and transmitted polarization ellipticities for various thicknesses. The time dependency may be explained by a two-step process: (1) fast trans-cis-isomerization resulting in photo-orientation and (2) slow photo-induced mass flow. open access Bagatur, Sekvan Schlesag, Marcel Fuhrmann-Lieker, Thomas doi:10.3390/molecules26102842 Azoverbindungen Supramolekül Chiralität <Chemie> Polarimetrie Polarisiertes Licht publishedVersion eissn:1420-3049 Issue 10 Molecules Volume 26 false 2842
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