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PACVD/PVD de multicouches sélectives pour la conversion thermodynamique de l'énergie solaire

Abstract : In concentrated solar power (CSP) plants, solar flux is concentrated on receivers to heat a transfer fluid up to 600°C. In order to improve their optical properties, these receivers can be covered by multilayered spectrally selective coatings. This work is devoted to designing and developing innovative spectrally selective structures showing strong absorption (low reflectivity) in the visible and near infrared range and low emissivity (high reflectivity) in the infrared range. We developed such stacks associating a refractory metal with high IR reflectivity and a ceramic which improves absorption in the visible range and thermal stability. The coatings were synthesized by plasma techniques, combining PACVD and PVD. Pre-industrial process feasibility, its development and optimization through the design of an innovative reactor, layer deposition and characterization, their combination in efficient optically selective stacks and the study of their aging have been achieved.
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Submitted on : Friday, November 18, 2022 - 10:35:20 AM
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  • HAL Id : tel-03859282, version 1

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Laurie Di Giacomo. PACVD/PVD de multicouches sélectives pour la conversion thermodynamique de l'énergie solaire. Autres [stat.ML]. Université de Perpignan, 2017. Français. ⟨NNT : 2017PERP0042⟩. ⟨tel-03859282⟩

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