Material design, preparation, properties and modeling of multifunctional oxides structures for microelectronics and new energy storage applications
Financed by the Romanian National Authority for Scientific Research, CNCS – UEFISCDI, project PN-II-ID-PCE-2011-3-0745, no. 270 /5.10.2011
The project proposes to design, produce and investigate three types of multifunctional oxides for microelectronics and energy storage applications: (i) ferroelectric-based tunable ceramics, for which the tunability requirements are accomplished by tuning grain size to nanoscale or by composition and ferroelectric-relaxor crossover; (ii) single phase Bi-based multiferroics and ferroelectric-magnetic compounds derived from the ternary system BaO-Fe2O3-TiO2; (iii) oxide ceramics for supercapacitors and energy storage, formed by antiferro-ferroelectric combinations in La-doped PbZr,TiO3 or in ferroelectric-based composites with antiferroelectrics or carbon nanotubes. The project will contribute to the basic chemistry & nanophysics associated to the phase formation and nanoscale self-assembly of these materials, to understand the intrinsic/extrinsic contributions to the functional properties driven by size, boundary conditions, order and nanoscale defects and to describe and control their functional properties for specific applications requirements. The overall scientific goal is to improve the knowledge and understand the multifunctional oxide structures at different levels (macroscopic, mesoscopic and nanoscale) by a multidisciplinary approach involving innovative chemistry for preparation, nano/microscale characterization, detailed investigation of the functional properties and modeling tools.