New Insight on Photoisomerization Kinetics of Photo-Switchable Thin Films Based on Azobenzene/Graphene Hybrid Additives in Polyethylene Oxide

Qais M Al-Bataineh; A A Ahmad; A M Alsaad; Ahmad Telfah

doi:10.3390/polym12122954

New Insight on Photoisomerization Kinetics of Photo-Switchable Thin Films Based on Azobenzene/Graphene Hybrid Additives in Polyethylene Oxide

Polymers (Basel). 2020 Dec 10;12(12):2954. doi: 10.3390/polym12122954.

Authors

Qais M Al-Bataineh¹, A A Ahmad¹, A M Alsaad¹, Ahmad Telfah^{2

3}

Affiliations

¹ Department of Physics, Jordan University of Science & Technology, P.O. Box 3030, Irbid-22110, Jordan.
² Leibniz Institut für Analytische Wissenschaften-ISAS-e.V., Bunsen-Kirchhoff-Straße 11, 44139 Dortmund, Germany.
³ Hamdi Mango Center for Scientific Research (HMCSR), The Jordan University, Amman 11942, Jordan.

Abstract

In this work, we reported a new insight on the kinetics of photoisomerization and time evolution of hybrid thin films considering the azo-dye methyl red (MR) incorporated with graphene accommodated in polyethylene oxide (PEO). The kinetics of photoisomerization and time-evolution of hybrid thin films were investigated using UV-Vis s and FTIR spectroscopies, as well as appropriate models developed with new analytical methods. The existence of azo-dye MR in the complex is crucial for the resource action of the trans cis cycles through UV-illumination Visible-illumination relaxations. The results of the UV-Vis and the FTIR investigations prove the cyclical trans [...]&nbsp.

Keywords: molecular solar thermal energy storage media; photo-switchable thin films; photoisomerization processes; polymerized nanocomposite thin films; trans-cis-isomers.