Features of the Photoalignment of Disodium Bis-[(4-Hydroxy-3-Carboxylate-6-Methyl)Phenylazo]-5,5′-Dioxobenzothiophene in Thin Films

Autor:	J. D. Chaplanova, Vladimir Agabekov, A. A. Muravskii, V. S. Mikulich, E. A. Gracheva
Rok vydání:	2015
Předmět:	Spin coating Aqueous solution Polyvinylpyrrolidone Dichroism Condensed Matter Physics Dichroic glass Photochemistry chemistry.chemical_compound chemistry medicine Molecule Carboxylate Thin film Spectroscopy medicine.drug
Zdroj:	Journal of Applied Spectroscopy. 82:169-174
ISSN:	1573-8647 0021-9037
Popis:	Thin films and multilayer thin-fi lm coatings based on the new dichroic azo dye disodium bis[(4-hydroxy-3-carboxylate-6-methyl)phenylazo]-5,5′-dioxobenzothiophene (FtF-1) were produced by the spin-coating method. The optical properties and morphology of the FtF-1 films depended on the formation conditions and used solvents. Reversible photo-induced dichroism was observed in films obtained by spin-coating of FtF-1 solutions in DMF and aqueous polyvinylpyrrolidone on quartz substrates upon irradiation with plane-polarized light (λ = 450 nm, I = 15 mW/cm2). The anisotropic properties of the FtF-1 films were caused by trans-cis-isomerization of the irradiated dye molecules.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1eae76729a4a52bf45937a6ea9b1d580 https://doi.org/10.1007/s10812-015-0082-3 Zobrazit plný text záznamu Plný text ve formátu PDF