Journal of Nanomedicine & Nanotechnology

Multifunctional oxides: Smart bulk and ordered sub nanostructures

9^th Nano Congress for Next Generation

August 01-02, 2016 Manchester, UK

Nicolay A Kulagin

Firma SIFA, Ukraine

Posters & Accepted Abstracts: J Nanomed Nanotechnol

Abstract:

The results of experimental and theoretical study of bulk and ordered nano-structures on surface of directly changed in stoichiometry composition oxides over plasma flow have been discussed in this report. Tested samples, such as -Al2O3, MexOy single crystals (oxide of iron group elements) samples with garnet structure, A3B2C3O12 and perovskite one, ABO3 as perfect or doped with Me or/ and RE ions were grown under special conditions. Pure and doped perfect or near stoichiometry samples were studied with optical/ spectroscopy methods, ESR, high resolution X ray spectroscopy, XRD, dielectric, conductivity, AFM, SEM, TEM techniques, before (after) annealing in oxidizing and reducing atmosphere or/and γ- or e- - irradiation affect and over high density plasma flow. Strong change in the ground properties of the samples was fitted and discussed. Ordered and quasi-ordered one- and multi-level nano and sub-nanostructures were discovered on the surface of the oxides after intensive plasma treatment. Exemplary SEM-AFM showed two-level ordered nano-structures on the surface of SrTiO3 and sapphire single crystals over plasma affect. Distorted surface layers of perovskites are polycrystalline in opposite to amorphous ones for sapphire or garnet crystals. The initial and treated samples were tested by standard and original methods of determination of the doped ions concentration, oxidation state of the host and impurity ions, stoichiometry, and crystallographic parameters, too.

Biography :

Email: newbook@nakulagin.info