Structural, Optical, and Magnetic Properties of Gd-Doped TiO2 Nanoparticles
| Autor: | N. Nithyaa, N. Victor Jaya |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Materials science Photoluminescence Analytical chemistry 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Electronic Optical and Magnetic Materials Condensed Matter::Materials Science symbols.namesake Paramagnetism Interaction with host Transmission electron microscopy 0103 physical sciences symbols Crystallite Fourier transform infrared spectroscopy 0210 nano-technology Raman spectroscopy Visible spectrum |
| Zdroj: | Journal of Superconductivity and Novel Magnetism. 31:4117-4126 |
| ISSN: | 1557-1947 1557-1939 |
| DOI: | 10.1007/s10948-018-4693-9 |
| Popis: | Polycrystalline pure and (1, 3 and 5%) Gd-doped TiO2 nanoparticles were synthesised by simple sol-gel method. The structure, morphology and physico-chemical properties of samples were characterised by X-ray diffraction, Fourier transform infrared spectroscopy, Raman spectra, transmission electron microscopy and N2 absorption and desorption isotherms. Photoluminescence (PL) measurements revealed that the samples exhibit extended light absorption frequencies in visible light region. The visible emission of TiO2 is found to be largely dependent on the defects and which were found to be tailored by varying Gd doping concentration. Room temperature magnetic studies reveal the transition from ferromagnetic to paramagnetic nature which occurs due to the high magnetic moment of Gd ions and its interaction with host lattice. |
| Databáze: | OpenAIRE |
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