A5080915040- Perovskite Materials and Applications
- Transition Metal Oxide Nanomaterials
- Magnetic and transport properties of perovskites and related materials
- Luminescence Properties of Advanced Materials
- Pigment Synthesis and Properties
- Multiferroics and related materials
- Chalcogenide Semiconductor Thin Films
- Catalysis and Oxidation Reactions
- Catalytic Processes in Materials Science
Institut Jean Lamour
2019-2022
Université de Lorraine
2022
Amer Sports (France)
2022
This work is dedicated to the elaboration and structural optical characterization of a LaCoO3 selective layer for solar thermal collectors. thermochromic material capable (similar VO2 that currently used this application) preventing overheating collector. Samples were prepared using two types sputtering reactors—a rotary confocal reactor an in-line semi-industrial reactor, allowing us produce samples with areas 1–2 cm2 21.0 × 29.7 cm2, respectively. The possess overall stoichiometry, La/Co...
Samarium nickelate (SmNiO3) exhibit a metal-insulator transition (MIT) around 120 °C and therefore appears to be an excellent candidate for new generation of thermochromic solar absorbers. Nevertheless, this kind perovskite is classically obtained under extreme conditions stabilize the metastable Ni3+ oxidation state. Here, we show that SmNiO3-δ thin films can synthesized soft-annealing as habitual orthorhombic distorted structure. The layers were deposited by reactive magnetron...
Thermochromic rare-earth perovskite LaCoO3 is a promising functional material for the new generation of selective layers and passive regulation in thermal solar collectors. Indeed, under stagnation conditions, collector overheat this inconvenience can be skirt using layer with tunable emissivity. Materials capable reversibly switching their infrared emissivity (ε) at certain temperature efficiently avoid overheating such systems. For LaCoO3, distinguishable thermochromic effect noticed...