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Thin molecular films of neutral tetrathiafulvalene-derivatives

Abstract : Thin films (thickness ∼1 μm) of the neutral π-donor molecules tetrathiafulvalene (TTF) derivatives tetramethyl-tetrathiafulvalene (TMTTF), ethylenedithio-tetrathiafulvalene (EDT-TTF) and bis(ethylenedithio)-tetrathiafulvalene (BEDT-TTF) as well as of tetramethyl-tetraselenafulvalene (TMTSF) have been obtained by sublimation in high vacuum (∼10−6 mbar) on alkali halide substrates. The films grow by the well-known Volmer–Weber mechanism and are polycrystalline. The microcrystals are highly oriented with their most densely packed molecular planes parallel to the substrate surface in order to minimize the surface (interface) energy. Incommensurate in-plane texture is found for particular molecule–substrate systems.
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Soumis le : vendredi 17 avril 2020 - 15:35:45
Dernière modification le : mercredi 27 avril 2022 - 04:06:37

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S Molas, J. Caro, J. Santiso, A Figueras, J. Fraxedas, et al.. Thin molecular films of neutral tetrathiafulvalene-derivatives. Journal of Crystal Growth, Elsevier, 2000, 218 (2-4), pp.399-409. ⟨10.1016/S0022-0248(00)00546-7⟩. ⟨hal-02545962⟩



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