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2D materials : exfoliation in liquid-phase and electronics applications

Abstract : This thesis is devoted to the production in liquid-phase of two-dimensional materials, by using approaches that may enable mass production of graphene and related materials. We aim to overcome some issues that are critical for the processing and practical use of 2D materials-inks and to provide a deep understanding of the structure-properties relationship in such materials being mandatory steps toward their future applications. This thesis mainly focuses on ultrasound-induced liquid-phase exfoliation and electrochemical exfoliation of graphene and molybdenum disulfide, which have been chosen as prototypical 2D materials. The synthetic approaches have been combined with a multiscale physico-chemical and electrical characterization of the produced materials, by employing techniques such as AFM, XPS and Raman spectroscopy. Applications in the field of sensing and electronics have been explored and allowed to demonstrate that liquid-phase exfoliation approaches can be conveniently employed to achieve a fine control on the properties of 2D materials paving the way to their integration as active materials in novel multifunctional devices.
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Submitted on : Tuesday, November 5, 2019 - 5:15:18 PM
Last modification on : Wednesday, November 20, 2019 - 3:30:06 AM
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  • HAL Id : tel-02349605, version 1



Matilde Eredia. 2D materials : exfoliation in liquid-phase and electronics applications. Chemical Physics [physics.chem-ph]. Université de Strasbourg, 2019. English. ⟨NNT : 2019STRAF008⟩. ⟨tel-02349605⟩



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