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

Polymers ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 2954
Author(s):  
Qais M. Al-Bataineh ◽  
Ahmad A. Ahmad ◽  
Ahmad M. Alsaad ◽  
Ahmad Telfah

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 ↔ cis-states. Consequently, PEO-(MR-Graphene) hybrid composite thin films can be introduced as possible applicants for photochromic molecular switches, light-gated transistors, and molecular solar thermal energy storage media.

Polymers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 841
Author(s):  
Qais M. Al-Bataineh ◽  
A. A. Ahmad ◽  
A. M. Alsaad ◽  
I. A. Qattan ◽  
Ihsan A. Aljarrah ◽  
...  

We report the effect of an iodine filler on photoisomerization kinetics of photo-switchable PEO-BDK-MR thin films. The kinetics of photoisomerization and time progression of PEO-BDK-MR/I2 nanocomposite thin films are investigated using UV-Vis, FTIR spectroscopies, and modified mathematical models developed using new analytical methods. Incorporating iodine filler into the PEO-BDK-MR polymeric matrix enhances the isomerization energy barrier and considerably increases the processing time. Our outcomes propose that enhanced photoisomerized and time processed (PEO-BDK-MR)/I2 thin films could be potential candidates for a variety of applications involving molecular solar thermal energy storage media.


1999 ◽  
Vol 38 (Part 2, No. 9A/B) ◽  
pp. L1029-L1031 ◽  
Author(s):  
Kenji Kitaoka ◽  
Nobuaki Matsuoka ◽  
Jinhai Si ◽  
Tsuneo Mitsuyu ◽  
Kazuyuki Hirao

1999 ◽  
Vol 107 (1246) ◽  
pp. 522-526 ◽  
Author(s):  
Kenji KITAOKA ◽  
Jinhai SI ◽  
Tsuneo MITSUYU ◽  
Kazuyuki HIRAO

Author(s):  
Vladimir S. Chirvony ◽  
Isaac Suárez ◽  
Jesús Rodríguez-Romero ◽  
Rubén Vázquez-Cárdenas ◽  
Jesus Sanchez-Diaz ◽  
...  

2011 ◽  
Vol 13 (37) ◽  
pp. 16530 ◽  
Author(s):  
Anja Wedig ◽  
Rotraut Merkle ◽  
Benjamin Stuhlhofer ◽  
Hanns-Ulrich Habermeier ◽  
Joachim Maier ◽  
...  

Author(s):  
Dominika Rajska ◽  
Agnieszka Brzózka ◽  
Katarzyna E. Hnida-Gut ◽  
Grzegorz D. Sulka
Keyword(s):  

2021 ◽  
Vol 26 ◽  
pp. 102162
Author(s):  
Refik Arat ◽  
Guobin Jia ◽  
Jan Dellith ◽  
Andrea Dellith ◽  
Jonathan Plentz

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