| People | Locations | Statistics |
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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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Cros, Stéphane
in Cooperation with on an Cooperation-Score of 37%
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Publications (7/7 displayed)
- 2023ALD-grown tin oxide as an electron selective layer for perovskite/silicon tandem cellscitations
- 2023Elucidating Interfacial Limitations Induced by Tin Oxide Electron Selective Layer Grown by Atomic Layer Deposition in N−I−P Perovskite-Based Solar Cellscitations
- 2022Nanocomposite coatings based on polyvinyl alcohol and montmorillonite for high-barrier food packagingcitations
- 2021A machine vision tool for facilitating the optimization of large-area perovskite photovoltaics
- 2014Interlaboratory indoor ageing of roll-to-roll and spin coated organic photovoltaic devices: Testing the ISOS testscitations
- 2014Structural properties of ultraviolet cured polysilazane gas barrier layers on polymer substratescitations
- 2012Optimization of PVA clay nanocomposite for ultra-barrier multilayer encapsulation of organic solar cells.
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article
Structural properties of ultraviolet cured polysilazane gas barrier layers on polymer substrates
Abstract
International audience ; Perhydropolysilazane (PHPS) conversion to silica through high energy ultraviolet irradiation has been studied. Precursor conversion speed and structural properties of the UV cured PHPS have been investigated and showed that this conversion method is fast but that complete conversion into silica is not achieved in an oxygen depleted atmosphere for layer thicknesses higher than 30 nm, resulting in a composite structure with concentration gradients. We further show that Fourier transform infrared spectroscopy data allow investigating the local structure and composition over the depth of the obtained layers. Gas permeability of the thin UV cured PHPS layers deposited on polymers has been studied. We used a high sensitivity permeation measurement technique to determine water vapor and oxygen permeabilities of the barrier layers and show the correlation between helium, oxygen and water permeability of these materials. Oxygen and water vapor transmission rates of respectively 0.06 cm3/m2/day/bar and 0.2 g/m2/day have been obtained with layers deposited on a polymer substrate.