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Photoisomerization of Azophenylcarbazole Self-assembled Monolayer on GaN Studied by Kelvin Probe

Self assembled monolayers of two fabricated azophenylcarbazoles on GaN epitaxial layers were obtained. Isomerization of the azo derivatives has been accomplished by illumination with wavelength of 440 nm, which coincides with their absorption maxima. The process has been observed in situ by Kelvin p...

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Bibliographic Details
Published in:Molecular Crystals and Liquid Crystals 2014-11, Vol.604 (1), p.52-58
Main Authors: Bikbajevas, V., Kadys, A., Tomašiūnas, R., Pūras, R., Urnikaitė, S., Getautis, V.
Format: Article
Language:English
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Summary:Self assembled monolayers of two fabricated azophenylcarbazoles on GaN epitaxial layers were obtained. Isomerization of the azo derivatives has been accomplished by illumination with wavelength of 440 nm, which coincides with their absorption maxima. The process has been observed in situ by Kelvin probe. A few parameters for azophenylcarbazoles (V-650 and V-728) of trans-cis switching such as difference between work function in trans and cis state and time constant for trans-cis and cis-trans isomerizations have been determined.
ISSN:1542-1406
1563-5287
1527-1943
DOI:10.1080/15421406.2014.967736