26 August 2015 Photoresponsive behavior of azobenzene hybrid materials
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The trans-cis-trans isomerization process for a series of azobenzene hybrid materials has been studied by UV-Vis spectroscopy. The photoisomerization process is mainly independent of the position and chemical nature of the substituents. The kinetics of the thermal back reaction for the azo-hybrids depend strongly on the chemical nature of the substituent and substitution pattern, with thermal relaxation rate constant ranging from 3.29×10-5 to 6.49×10-2 s-1. The photoresponsive properties can be tune up by changing substituent nature and position on the azo-chromophore. These photoresponsive hybrid materials are optimal molecules for storage data applications and for designing fast optical switching devices.
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Valentin V. Jerca, Valentin V. Jerca, Florica A. Jerca, Florica A. Jerca, Ileana Rau, Ileana Rau, François Kajzar, François Kajzar, Dan S. Vasilescu, Dan S. Vasilescu, Dumitru M. Vuluga, Dumitru M. Vuluga, } "Photoresponsive behavior of azobenzene hybrid materials", Proc. SPIE 9557, Nanobiosystems: Processing, Characterization, and Applications VIII, 95570P (26 August 2015); doi: 10.1117/12.2196161; https://doi.org/10.1117/12.2196161

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