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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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Mondinos, N.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2021High temperature (up to 1200 °C) thermal-mechanical stability of Si and Ni doped CrN framework coatingscitations
- 2019Nanorose-like ZnCo2O4 coatings synthesized via sol–gel route: Morphology, grain growth and DFT simulationscitations
- 2017Structural and optical characteristics of pre- and post-annealed sol-gel derived CoCu-oxide coatingscitations
- 2017Investigation of the post-annealing electromagnetic response of Cu–Co oxide coatings via optical measurement and computational modellingcitations
- 2016Structural thermal stability of graphene oxide-doped copper-cobalt oxide coatings as a solar selective surfacecitations
- 2016Effects of annealing temperatures on the morphological, mechanical, surface chemical bonding, and solar selectivity properties of sputtered TiAlSiN thin filmscitations
- 2016Structural, optical, and mechanical properties of cobalt copper oxide coatings synthesized from low concentrations of sol-gel processcitations
- 2016Chemical bonding states and solar selective characteristics of unbalanced magnetron sputtered TixM1−x−yNyfilmscitations
- 2016Understanding the structural, morphological and optical features of Mo, CrN and CrMoN sputtered films
- 20153d transition metal oxide based sol-gel derived coatings for photothermal applications
- 2014Understanding local bonding structures of Ni-doped chromium nitride coatings through synchrotron radiation NEXAFS spectroscopycitations
- 2014Phase transition in CrxAl(1-x)N coating at high temperatures
Places of action
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article
Structural and optical characteristics of pre- and post-annealed sol-gel derived CoCu-oxide coatings
Abstract
Sol-gel derived CuCo-oxide coatings as solar selective surfaces, synthesized onto aluminium substrates at various annealing temperatures, are analysed by correlating their structural, chemical bonding states, and surface morphological topographies. As the annealing progressed, all the coatings displayed a Cu0.56Co2.44O4 (ICSD 78-2175) phase with preferential orientation along (400) reflection plane. Rietveld refinement of X-ray diffraction (XRD) data indicate that residual stress and microstrains developed around the coating surfaces are reduced resulting in mechanically stable thin films. Enhancement of the crystallite size and preferred orientation of the surface were confirmed via XRD, field emission scanning electron microscopy (FESEM), and atomic force microscopy (AFM) analysis. X-ray photoelectron spectroscopy (XPS) analysis shows tetrahedral, octahedral and mixed states of Cu and Co ions with a stable atomic ratio of Co/Cu, and an increase of O and C contents but no metal-carbon bonding on the surface of materials. Optical reflectance investigations indicated that solar selectivity of the coatings increased from 3.81 to 24 as the annealing temperature reached up to 500 °C.