| 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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Niklasson, Gunnar A.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2024Electrochromic nickel-oxide-based thin films in KOH electrolyte : Ionic and electronic effects elucidated by impedance spectroscopycitations
- 2021The role of oxygen to argon gas flow ratio on the durability of sputter-deposited electrochromic tungsten oxide films
- 2019Impedance Spectroscopy Modeling of Nickel–Molybdenum Alloys on Porous and Flat Substrates for Applications in Water Splittingcitations
- 2019A novel phase function describing light scattering of layers containing colloidal nanospherescitations
- 2018Determination of the optical constants of the active layer of a suspended particle device smart window with multilayer structure at the clear and dark states, with and without applied voltage.
- 2017Thermochromic Oxide-Based Thin Films and Nanoparticle Composites for Energy-Efficient Glazingscitations
- 2016Sputter-Deposited Indium-Tin Oxide Thin Films for Acetaldehyde Gas Sensingcitations
- 2016Plasmonic thin films for application to inproved chromogenic windowscitations
- 2014Electronic density-of-states of amorphous vanadium pentoxide films : Electrochemical data and density functional theory calculationscitations
- 2014Thermochromic undoped and Mg-doped VO2 thin films and nanoparticles : Optical properties and performance limits for energy efficient windowscitations
- 2014Electrochromics and thermochromics for energy efficient fenestration : Functionalities based on nanoparticles of In2O3:Sn and VO2citations
- 2013Thermochromic VO2 nanorods made by sputter deposition : Growth conditions and optical modelingcitations
- 2011A thermochromic low-emittance coating : Calculations for nanocomposites of In2O3:Sn and VO2citations
- 2011Spectral density analysis of the optical properties of Ni-Al 2O 3 nano-composite filmscitations
- 2011Unveiling the complex electronic structure of amorphous metal oxidescitations
- 2010Spectroscopic ellipsometry characterization of electrochromic tungsten oxide and nickel oxide thin films made by sputter depositioncitations
- 2010Concentration dependence of ionic relaxation in lithium doped polymer electrolytescitations
- 2010PEI-LiTFSI electrolytes for electrochromic devices : Characterization by differential scanning calorimetry and viscosity measurementscitations
- 2010Determination of electronic structure by impedance spectroscopycitations
- 2010Transparent and conducting TiO2:Nb films made by sputter deposition : Application to spectrally selective solar reflectorscitations
- 2008Determination of solid phase chemical diffusion coefficient and density of states by electrochemical methods : Application to iridium oxide-based thin filmscitations
- 2003Optical properties of polycrystalline metallic filmscitations
Places of action
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conferencepaper
Spectral density analysis of the optical properties of Ni-Al 2O 3 nano-composite films
Abstract
Thin films consisting of transition metal nanoparticles in an insulating oxide exhibit a high solar absorptance together with a low thermal emittance and are used as coatings on solar collector panels. In order to optimise the nanocomposites for this application a more detailed understanding of their optical properties is needed. Here we use a highly efficient recently developed numerical method to extract the spectral density function of nickel-aluminum oxide (Ni-Al 2O 3) composites from experimental data on the dielectric permittivity in the visible and near-infrared wavelength ranges. Thin layers of Ni-Al 2O 3 were produced by a sol-gel technique. Reflectance and transmittance spectra were measured by spectrophotometry in the wavelength range 300 to 2500 nm for films with thicknesses in the range 50 to 100 nm. Transmission electron microscopy showed crystalline Ni particles with sizes in the 3 to 10 nm range. The spectral density function shows a multi-peak structure with three or four peaks clearly visible. The peak positions are influenced by particle shape, local volume fraction distributions and particle-particle interactions giving rise to structural resonances in the response of the composite to an electromagnetic field. ; Copyright 2011 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.