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Croissance d'oxyde métallique par photolyse dans un réseau d'interférences 3D

Abstract : The objective of this thesis was to examine the possibility of carrying out a growth of three-dimensional periodic structures by chemical vapour decomposition in a 3D interference field. The direct growth of chromium oxide Cr2O3 of 3D periodic organization was proven. This one takes place by photolytic decomposition of chromyle chloride CrO2Cl2. Moreover, as such a decomposition was realized on TiO2 single-crystal substrate, it was found that the structuring of Cr2O3 exhibits crystallographical orientational relationships with respect to the substrate. The process starts with an epitaxial growth of CrO2 which the crystal structure is isomorphous with that of TiO2 rutile; CrO2 oxide decomposes partially into Cr2O3, itself cristallographically oriented with respect to CrO2. Then a growth of Cr2O3 phase continues according to the electromagnetic energy density modulations of the 3D interference network. This manuscript contains also a recall of the interfercences network theory , the description of the breadboard construction and the checking of the stability and its resolution by photopolymerization of organic/inorganic hybrids. A study on the influence of various parameters of the photopolymerization of these hybrids is also presented.
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Submitted on : Thursday, July 28, 2011 - 10:03:00 AM
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Mathieu Salaün. Croissance d'oxyde métallique par photolyse dans un réseau d'interférences 3D. Physique Atomique [physics.atom-ph]. Institut National Polytechnique de Grenoble - INPG, 2008. Français. ⟨tel-00612071⟩

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