The aim of the proposed project is an integrative approach initiated for the first time in the scientific literature on the development of nanocrystalline germs in oxide disordered systems obtained by two of the most used synthesi methods: melts quickly undercooling and the sol-gel method.
The samples will be investigated beside x-ray diffraction, electronic microscopy and atomic force microscopy analysis also by means of complementary techniques: ir and raman spectroscopies along with electron paramagnetic and nuclear magnetic resonance, because the considered systems contain both nuclear and paramagnetic resonance centres.
In the framework of the project we intend to study the growing of nanocrystalline phases in systems containing silicium and gadolinium. The presence of lanthanides in borate oxide systems with silicium proved to exert favourable effects on their catalytical properties, especially under non-crystalline form, while the optical, electric and magnetic properties of nanocrystalline phases containing lanthanides recommend their investigation in order of applications for advanced technologies, as optoelectronics.
It was shown that the properties of these systems are extremely different when prepared in the form of microsphere. This is because the systems are strongly influenced by the characteristics of the nanostructured layers that develop at the microsphere surface.