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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Hirsch, Lionel
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2024Electronic Doping in Perovskite Solar Cellscitations
- 2024Three Terminal Organic-Silicon Tandem Models
- 2024Unmasking The Magic of Magic Blue in Perovskite Dopingcitations
- 2023Redox-active ions unlock substitutional doping in halide perovskites ; Mater. Horiz.citations
- 2023Homojunction Doping for Efficient Hole Extraction in Polymer Solar Cellscitations
- 2023Probing proton diffusion as a guide to environmental stability in powder-engineered FAPbI3 and CsFAPbI3 perovskitescitations
- 2023Low-cost WO3 nanoparticles / PVA smart photochromic glass windows for sustainable building energy savingscitations
- 2023Redox-active ions unlock substitutional doping in halide perovskitescitations
- 2022Homojunction Doping for Efficient Hole Extraction in Polymer Solar Cellscitations
- 2022Electron beam versus thermal deposition of aluminum top electrode for organic solar cellscitations
- 2020An insight into the charge carriers transport properties and electric field distribution of CH 3 NH 3 PbBr 3 thick single crystalscitations
- 2017Engineering processes at the interface of p-semiconductor for enhancing the open circuit voltage in p-type dye-sensitized solar cellscitations
- 2014Sensitivity enhancement of a flexible MEMS strain sensor by a field effect transistor in an all organic approachcitations
- 2012Cumulative effects of electrode and dielectric surface modifications on pentacene-based transistorscitations
- 2011Epitaxial samarium disilicide films on silicon (0 0 1) substrates: growth, structural and electrical propertiescitations
- 2006Silole derivatives: relationships between molecular arrangement and OLED efficiency.citations
- 2006Organic Light-emitting Diodes and Organic Light-emitting Electrochemical Cells Based on Silole-Fluorene Derivatives.citations
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article
Low-cost WO3 nanoparticles / PVA smart photochromic glass windows for sustainable building energy savings
Abstract
International audience ; In this paper, we investigate the WO3-x/PVA composite films as smart photochromic coatings on glass substrate by two methods: solvent casting (SC) and dip-coating (DC). The two methods were thoroughly compared using experimental and theoretical means. All prepared films have been optically investigated by ex-situ and in-situ UV–Vis spectrometry, leading to insight on their coloring/bleaching amplitudes and kinetics. It was found that the SC films exhibited the best photochromic amplitude with a visible and infrared optical contrast and , whereas and reached less than 20.2 and 5.4 for the best films issued from the DC process. Further, a two-flux model (KubelkaMunk) was adapted to understand the associated impacts of absorption and scattering in our composite films. The calculations revealed that the simulated scattering factor was higher in the case of the DC films than for the SC films, explaining hence the higher photochromic amplitude of the latter. After carefully analyzing the relationship between the SC and DC films characterizations and optical performance, we concluded that the SC method offered films that are a better candidate for post-optical application in terms of scattering reduction, improved visible/infrared contrast, and better photochromic efficiency. Nevertheless, the “thick” SC films get a slightly lower kinetic response than the “thin” DC films. Finally, the cooling effect of the photochromic SC films was tested by integrating them in a model wooden room under the irradiation of an artificial solar source. The photochromic SC smart windows proposed here are equally efficient while being more affordable than electrochromic panels or VO2 thermochromic thin films to reduce the inner house temperature (almost 20 °C) upon solar irradiation, demonstrating their great potential as smart cost-effective energy-saving materials