693.932 PEOPLE
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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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| Petrov, R. H. | Madrid |
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| Azevedo, Nuno Monteiro |
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Załęski, Karol
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (41/41 displayed)
- 2024TiO 2 /PDA Multilayer Nanocomposites with Exceptionally Sharp Large-Scale Interfaces and Nitrogen Doping Gradientcitations
- 2024Ag, Cu, and Se-doped ultrasmall iron oxide colloidal gels: Revealing potential for photo/electrochemical applicationscitations
- 2024Fundamentals of Flexoelectricity, Materials and Emerging Opportunities Toward Strain-Driven Nanocatalystscitations
- 2023Hybrid Molecular Magnets with Lanthanide- and Countercation-Mediated Interfacial Electron Transfer between Phthalocyanine and Polyoxovanadatecitations
- 2023Multifunctional ZnO:Gd@ZIF-8 hybrid nanocomposites with tunable luminescent-magnetic performance for potential bioapplicationcitations
- 2022Nano-columnar, self-organised NiCrC/a-C:H thin films deposited by magnetron sputteringcitations
- 2021Study of nanostructured ultra-refractory Tantalum-Hafnium-Carbide electrodes with wide electrochemical stability windowcitations
- 2021Study of nanostructured ultra-refractory Tantalum-Hafnium-Carbide electrodes with wide electrochemical stability windowcitations
- 2020Enhancing photocatalytic performance and solar absorption by schottky nanodiodes heterojunctions in mechanically resilient palladium coated TiO2/Si nanopillars by atomic layer depositioncitations
- 2020Enhancing photocatalytic performance and solar absorption by schottky nanodiodes heterojunctions in mechanically resilient palladium coated TiO2/Si nanopillars by atomic layer depositioncitations
- 2019Ultrafast magnetization dynamics in an epitaxial Ni54.3Mn31.9Sn13.8 Heusler-alloy film close to the Curie temperaturecitations
- 2019Effect of porous silicon substrate on structural, mechanical and optical properties of MOCVD and ALD ruthenium oxide nanolayerscitations
- 2019Enhanced thermoelectric power factor of half-Heusler solid solution Sc <inf>1-x</inf> Tm <inf>x</inf> NiSb prepared by high-pressure high-temperature sintering methodcitations
- 2019Multilayer design of crN/MoN superhard protective coatings and their characterisationcitations
- 2018Silver and ultrasmall iron oxides nanoparticles in hydrocolloids: Effect of magnetic field and temperature on self-organizationcitations
- 2018Experimental and theoretical studies of the physicochemical and mechanical properties of multi-layered TiN/SiC films: Temperature effects on the nanocomposite structurecitations
- 2018Microstructure, phase composition and mechanical properties of novel nanocomposite (TiAlSiY)N and nano-scale (TiAlSiY)N/MoN multifunctional heterostructurescitations
- 2018Nano-multilayered coatings of (TiAlSiY)N/MeN (Me=Mo, Cr and Zr): Influence of composition of the alternating layer on their structural and mechanical propertiescitations
- 2018High-temperature Magnetodielectric Bi (Fe0.5Mn0.5) O3 Thin Films with Checkerboard-Ordered Oxygen Vacancies and Low Magnetic Dampingcitations
- 2018Optical properties of ZnO deposited by atomic layer deposition (ALD) on Si nanowirescitations
- 2018Optical properties of ZnO deposited by atomic layer deposition (ALD) on Si nanowirescitations
- 2018Superhard CrN/MoN coatings with multilayer architecturecitations
- 2017Ultra-low damping in lift-off structured yttrium iron garnet thin filmscitations
- 2017Second Harmonic Generation Response in Thermally reconstructed Multiferroic β′- Gd<inf>2</inf>(MoO<inf>4</inf>)<inf>3</inf> Thin Filmscitations
- 2017Multilayered vacuum-arc nanocomposite TiN/ZrN coatings before and after annealing: Structure, properties, first-principles calculationscitations
- 2016Combined reactive/non-reactive DC magnetron sputtering of high temperature composite AlN-TiB <inf>2</inf> -TiSi <inf>2</inf>citations
- 2016Synthesis and study of bifunctional core-shell nanostructures based on ZnO@Gd<inf>2</inf>O<inf>3</inf>citations
- 2016Enhancement of optical and mechanical properties of Si nanopillars by ALD TiO<inf>2</inf>coatingcitations
- 2016Gradient nanostructured coatings obtained by magnetron sputtering of a multiphase AlN–TiB<inf>2</inf>–TiSi<inf>2</inf> targetcitations
- 2016The influence of oxidation process on exchange bias in egg-shaped FeO/Fe<inf>3</inf>O<inf>4</inf> core/shell nanoparticlescitations
- 2016Orientation dependent Ti diffusion in YNMO/STO thin films deposited by pulsed laser depositioncitations
- 2015Tailoring the structural, optical, and photoluminescence properties of porous silicon/TiO<inf>2</inf> nanostructurescitations
- 2015Structural and XPS characterization of ALD Al<inf>2</inf>O<inf>3</inf> coated porous siliconcitations
- 2015Structural and XPS studies of PSi/TiO2 nanocomposites prepared by ALD and Ag-assisted chemical etchingcitations
- 2015Synthesis and characterization of magnetite/silver/antibiotic nanocomposites for targeted antimicrobial therapycitations
- 2015Atomic layer deposition TiO2 coated porous silicon surface: Structural characterization and morphological featurescitations
- 2015Study on Structural, Mechanical, and Optical Properties of Al<inf>2</inf>O<inf>3</inf>-TiO<inf>2</inf> Nanolaminates Prepared by Atomic Layer Depositioncitations
- 2014Tailoring mechanical properties and electrical conductivity of flexible niobium carbide nanocomposite thin filmscitations
- 2012Magnetoresistance and its relation to magnetization in Ni <inf>50</inf>Mn <inf>35</inf>Sn <inf>15</inf> shape-memory epitaxial filmscitations
- 2012Exchange bias in Ni-Mn-Sn heusler alloy filmscitations
- 2011Magnetostructural transformations in Ni <inf>51</inf> Mn <inf>36</inf> Sn <inf>13</inf> Heusler alloy thin filmscitations
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article
Tailoring the structural, optical, and photoluminescence properties of porous silicon/TiO<inf>2</inf> nanostructures
Abstract
<p>The structural, optical, and photoluminescence properties of porous silicon (PSi)/titanium dioxide (TiO<sub>2</sub>) nanostructures were investigated. PSi structures consisting of macro and mesoporous layers were fabricated by metal assisted chemical etching, and then TiO<sub>2</sub> was introduced inside the PSi matrix using the atomic layer deposition technique. We performed scanning electron microscopy, transmission electron microscopy (TEM), X ray diffraction, energy dispersive X ray spectroscopy, Raman spectroscopy, ellipsometry, and photoluminescence (PL) spectroscopy to characterize the prepared and annealed PSi/TiO<sub>2</sub> nanostructures. TEM and Raman analyses revealed that TiO<sub>2</sub> had a crystalline anatase structure. PL measurements of the PSi/TiO<sub>2</sub> composite system showed two broad peaks at approximately 2.4 3 eV (blue PL) and 1.7 1.9 eV (red PL). The mechanisms of the emissions were discussed, and it was found that two main competing recombination mechanisms take place, including radiative recombination through the surface states (surface recombination) and through oxygen vacancies and self trapped excitons (volume recombination).</p>