Search Results - "Fleacă, Claudiu Teodor"

From thin “coffee rings” to thick colloidal crystals, through drop spreading inhibition by the substrate edge by Sandu, Ion, Fleacă, Claudiu Teodor, Dumitrache, Florian, Sava, Bogdan, Urzică, Iuliana, Dumitru, Marius

“…“Coffee rings” structures formed by the evaporation of a nanosphere colloidal drop which rests on a substrate can be grown as thick, good quality colloidal…”
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Shaping in the Third Direction: Colloidal Photonic Crystals with Quadratic Surfaces Self-Assembled by Hanging-Drop Method by Sandu, Ion, Antohe, Iulia, Fleaca, Claudiu Teodor, Dumitrache, Florian, Urzica, Iuliana, Dumitru, Marius

“…High-quality, 3D-shaped, SiO colloidal photonic crystals (ellipsoids, hyperboloids, and others) were fabricated by self-assembly. They possess a quadratic…”
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Shaping in the Third Direction: Self-Assembly of Convex Colloidal Photonic Crystals on an Optical Fiber Tip by Hanging Drop Method by Sandu, Ion, Antohe, Iulia, Fleaca, Claudiu Teodor, Dumitrache, Florian, Urzica, Iuliana, Brajnicov, Simona, Iagaru, Romulus, Sava, Bogdan Alexandru, Dumitru, Marius

“…High-quality convex colloidal photonic crystals can be grown on the tip of an optical fiber by self-assembly using the hanging drop method. They are…”
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Shaping in the Third Direction; Fabrication of Hemispherical Micro-Concavity Array by Using Large Size Polystyrene Spheres as Template for Direct Self-Assembly of Small Size Silica Spheres by Sandu, Ion, Fleaca, Claudiu Teodor, Dumitrache, Florian, Sava, Bogdan Alexandru, Urzica, Iuliana, Antohe, Iulia, Brajnicov, Simona, Dumitru, Marius

“…Silica and polystyrene spheres with a small size ratio (r = 0.005) form by sequential hanging drop self-assembly, a binary colloidal crystal through which…”
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Shaping in the Third Direction; Synthesis of Patterned Colloidal Crystals by Polyester Fabric-Guided Self-Assembly by Sandu, Ion, Fleaca, Claudiu Teodor, Dumitrache, Florian, Sava, Bogdan Alexandru, Urzica, Iuliana, Antohe, Iulia, Brajnicov, Simona, Dumitru, Marius

“…A polyester fabric with rectangular openings was used as a sacrificial template for the guiding of a sub-micron sphere (polystyrene (PS) and silica) aqueous…”
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Titania nanoparticles for photocatalytic degradation of ethanol under simulated solar light by Goncearenco, Evghenii, Morjan, Iuliana P, Fleaca, Claudiu Teodor, Dumitrache, Florian, Dutu, Elena, Scarisoreanu, Monica, Teodorescu, Valentin Serban, Sandulescu, Alexandra, Anastasescu, Crina, Balint, Ioan

“…TiO nanoparticles were synthesized by laser pyrolysis from TiCl vapor in air in the presence of ethylene as sensitizer at different working pressures (250-850…”
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Zn/F-doped tin oxide nanoparticles synthesized by laser pyrolysis: structural and optical properties by Dumitrache, Florian, Morjan, Iuliana P, Dutu, Elena, Morjan, Ion, Fleaca, Claudiu Teodor, Scarisoreanu, Monica, Ilie, Alina, Dumitru, Marius, Mihailescu, Cristian, Smarandache, Adriana, Prodan, Gabriel

“…Zn/F co-doped SnO nanoparticles with a mean diameter of less than 15 nm and a narrow size distribution were synthesized by a one-step laser pyrolysis technique…”
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Synthesis of optical transparent and electrical conductive polymer/nanocarbon composite films by infiltration method by Sandu, Ion, Brasoveanu, Mirela, Morjan, Ion, Voicu, Ion, Dumitrache, Florian, Teodor, Claudiu-Fleaca, Gavrila-Florescu, Lavinia

“…Optical transparent and electrical conductive (PMMA)/nanocarbon composite films can be prepared through the infiltration of the polymer between the carbon…”
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Oriented carbon nanostructures grown by hot-filament plasma-enhanced CVD from self-assembled Co-based catalyst on Si substrates by Fleaca, Claudiu Teodor, Morjan, Ion, Rodica, Alexandrescu, Dumitrache, Florian, Soare, Iuliana, Gavrila-Florescu, Lavinia, Sandu, Ion, Dutu, Elena, Le Normand, François, Faerber, Jacques

“…We report the synthesis of coral- and caterpillar-like carbon nanostructures assemblies starting from cobalt nitrate ethanol solutions deposited by…”
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The influence of gravity on the distribution of the deposit formed onto a substrate by sessile, hanging, and sandwiched hanging drop evaporation by Sandu, Ion, Fleaca, Claudiu Teodor

“…Sessile, hanging, or sandwiched hanging colloidal drop evaporation; the gravity and the geometrical constrain of the nanoparticle’s movement in the drop…”
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Hanging colloidal drop: A new photonic crystal synthesis route by Sandu, Ion, Dumitru, Marius, Fleaca, Claudiu Teodor, Dumitrache, Florian

“…•High quality and thick PCs can be grown from a PS and SiO2 colloidal hanging drop.•The essence of experimental findings is that the drop has to hang on a…”
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Study of phase development and thermal stability in as synthesized TiO2 nanoparticles by laser pyrolysis: ethylene uptake and oxygen enrichment by Ilie, Alina Georgiana, Scarisoreanu, Monica, Dutu, Elena, Dumitrache, Florian, Banici, Ana-Maria, Fleaca, Claudiu Teodor, Vasile, Eugenia, Mihailescu, Ion

“…•Mixed-phase oxygen abundant TiO2 nanoparticles synthesized by Laser Pyrolysis.•Prevalent anatase stable phase with sizes superior to 30nm.•Equally mixed…”
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Self-organisation of single-crystals as ripple patterns through laser ablation of ionic salt solutions by Sandu, Ion, Urzica, Iuliana, Niculescu, Ana Maria, Fleaca, Claudiu Teodor, Dumitrache, Florian, Badiceanu, Maria

“…[Display omitted] •Hierarchically arranged single crystal ripples form by laser irradiation of an aq. ionic salts film.•Shock dewetting inducing capillary wave…”
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Ni-catalysed carbon nanotubes and nanofibers assemblies grown on TiN/Si(100) substrates using hot-filaments combined with d.c. plasma CVD by Fleaca, Claudiu Teodor, Le Normand, François

“…Different carbon nanotubes or nanofibers (CNTs or CNFs) assemblies were obtained using Ni catalyst deposited by Pulsed Laser Deposition (PLD) on TiN/Si(100)…”
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Synthesis of Fe-based core@ZnO shell nanopowders by laser pyrolysis for biomedical applications by Gavrila-Florescu, Lavinia, Dumitrache, Florian, Balas, Mihaela, Fleaca, Claudiu Teodor, Scarisoreanu, Monica, Morjan, Iuliana P., Dutu, Elena, Ilie, Alina, Banici, Ana-Maria, Locovei, Claudiu, Prodan, Gabriel

“…Nano-sized Fe-based (metallic, carbidic and/or oxidic) core@ZnO shell particles have been successfully synthesized in one step by the laser-induced pyrolysis…”
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Laser pyrolysis synthesis of Sn–Fe–N@polycarbosilazane nanocomposites, characterization and evaluation as energy storage materials by Fleaca, Claudiu Teodor, Dumitrache, Florian, Sandu, Ion, Dutu, Elena, Ilie, Alina, Banici, Ana-Maria, Vasile, Eugeniu, Vlaic, Codruta, Bund, Andreas, Prodan, Gabriel

“…We report the single-step synthesis of novel tin-based core–carbosilazane shell nano-composites using laser pyrolysis technique. Controlled NH 3 flows were…”
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Novel Fe@C–TiO2 and Fe@C–SiO2 water-dispersible magnetic nanocomposites by Fleaca, Claudiu Teodor, Dumitrache, Florian, Morjan, Ion, Alexandrescu, Rodica, Luculescu, Catalin, Niculescu, Ana, Vasile, Eugeniu, Kuncser, Victor

“…[Display omitted] ► Fe–FexCy@C nanoparticles were obtained using laser pyrolysis technique. ► These nanoparticles present a high (110Am2/kg) magnetization…”
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Ni-catalysed carbon nanotubes and nanofibers assemblies grown on TiN/Si(100) substrates using hot-filaments combined with d.c. plasma CVD : Science and technology of nanotubes, graphene, and 2D layered materials by FLEACA, Claudiu Teodor, LE NORMAND, François

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Voltage and Temperature Coefficients of Resistance of Polyethylene/ Nanocarbon-Based Thick Film Composites: Melt-Mixing Versus Melt-Infiltration Synthesis by Sandu, Ion, Morjan, Ion, Voicu, Ion, Dumitrache, Florian, Fleaca, Claudiu Teodor, Gavrila-Florescu, Lavinia

“…Carbon-composed resistors, thick film resistors, and chip resistors are commonly used in Electronics. They are prepared by mixing carbon-based materials with…”
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