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Well-Organized Langmuir-Blodgett Films based on Push-Pull Carotenoids

Abstract : In this paper we report a structural study of Langmuir-Blodgett (LB) films built from different mixtures of a push-pull carotenoid and ω-tricosenoic acid. Even for low dilution ratios, Langmuir films of the modified carotene diluted by ω-tricosenoic acid exhibit a very good cohesion and the surface per carotenoid molecule is close to 25 Å2. The mixed films can easily be transferred onto solid substrates whatever the dilution ratio. UV-visible linear dichroism examination of the mixed LB films confirms that the chain-like π-conjugated molecules are oriented perpendicularly to the substrate in card-packed aggregates.
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https://hal-cea.archives-ouvertes.fr/cea-01057198
Contributor : Serge Palacin <>
Submitted on : Thursday, August 21, 2014 - 4:08:13 PM
Last modification on : Saturday, September 19, 2020 - 4:38:19 AM

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Serge Palacin, Mireille Blanchard-Desce, Jean-Marie Lehn, André Barraud. Well-Organized Langmuir-Blodgett Films based on Push-Pull Carotenoids. Thin Solid Films, Elsevier, 1989, 178, pp.387-392. ⟨10.1016/0040-6090(89)90327-1⟩. ⟨cea-01057198⟩

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