Quasicubic α-Fe2O3 nanoparticles embedded in TiO2 thin films grown by atomic layer deposition
| Autor: | Jekaterina Kozlova, Joosep Link, Kaupo Kukli, Piret Pikma, Aile Tamm, Liis Seinberg, Raivo Stern |
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| Rok vydání: | 2016 |
| Předmět: |
Anatase
Materials science Nanostructure Metals and Alloys Nanoparticle Nanotechnology 02 engineering and technology Surfaces and Interfaces 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Dip-coating 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Titanium oxide Surface coating Atomic layer deposition Chemical engineering Materials Chemistry Thin film 0210 nano-technology |
| Zdroj: | Thin Solid Films. 612:445-449 |
| ISSN: | 0040-6090 |
| DOI: | 10.1016/j.tsf.2016.06.036 |
| Popis: | Monodispersed quasicubic α-Fe 2 O 3 nanoparticles were synthesized from ferric nitrite (Fe(NO 3 ) 3 ), N , N -dimethyl formamide and poly( N -vinyl-2-pyrrolidone). Layers of nanoparticles were attached to HF-etched Si substrates by dip coating and subsequently embedded in thin titanium oxide films grown by atomic layer deposition from TiCl 4 and H 2 O. The deposition of TiO 2 onto Fe 2 O 3 nanoparticles covered the nanoparticles uniformly and anatase phase of TiO 2 was observed in Si/Fe 2 O 3 /TiO 2 nanostructures. In Si/Fe 2 O 3 /TiO 2 nanostructure magnetic domains, observable by magnetic force microscopy, were formed and these nanostructures implied ferromagnetic-like behavior at room temperature with the saturative magnetization and coercivity of 10 kA/m. |
| Databáze: | OpenAIRE |
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