Phase equilibria and thermodynamic properties of oxide systems on the basis of rare earth, alkaline earth and 3d-transition (Mn, Fe, Co) metals. A short overview of [PDF]
, 2015 Review is dedicated studies of phase equilibria in the systems based on rare earth elements and 3d transition metals. It’s highlighted several structural families of these compounds and is shown that many were found interesting properties for practical ...
Aksenova, T. V. +5 more
core +2 more sources
Dipolar glass state in BaCe0.3Ti0.7O3 perovskite solid solutions
Journal of Alloys and Compounds, 2021 An extensive broadband dielectric spectroscopy study of BaCe0.3Ti0.7O3 ceramics is presented. The distribution of relaxation times of the system derived from the frequency dependence of complex dielectric permittivity are similar to the ones observed in dipolar glasses.
Svirskas +10 more
openaire +3 more sources
A fast and robust numerical scheme for solving models of charge carrier transport and ion vacancy motion in perovskite solar cells [PDF]
, 2018 Drift-diffusion models that account for the motion of both electronic and ionic charges are important tools for explaining the hysteretic behaviour and guiding the development of metal halide perovskite solar cells. Furnishing numerical solutions to such
Courtier, N. E. +2 more
core +2 more sources
EPR, Nexafs Study and Magnetic Properties of Fe-Doped Ferroelectric Ceramics
Reviews on Advanced Materials Science, 2018 Magnetic susceptibility and EPR of iron-containing solid solutions with layered perovskite-like structure Bi2BaNb2-2xFe2xO9-δ and Bi5Nb3-3xFe3xO15-δ have been studied.
Zhuk N. A. +5 more
doaj +1 more source
Magnetic susceptibility, EPR, NEXAFS and XPS spectra of Fe-doped CaBi2Nb2O9
Journal of Materials Research and Technology, 2020 In order to study the electronic state of Fe atoms and interatomic exchange interactions in solid solutions of Bi2CaNb2−2xFe2xO9−δ with perovskite structure, methods of magnetic dilution, NEXAFS, XPS and EPR spectroscopy were used.
N.A. Zhuk +8 more
doaj +1 more source
High Open Circuit Voltage Solar Cells based on bright mixed-halide CsPbBrI2 Perovskite Nanocrystals Synthesized in Ambient Air Conditions [PDF]
, 2018 Lead halide perovskite nanocrystals (NCs) are currently emerging as one of the most interesting solution processed semiconductors since they possess high photoluminescence quantum yield (PLQY), and colour tunability through anion exchange reactions or ...
Christodoulou, Sotirios +4 more
core +3 more sources
Effect of scandium atoms substitution on the two-slab structure of scandate BaGd2Sc2O7
Фізика і хімія твердого тіла, 2023 Tetragonal crystal structure (space group P42/mnm (No 136)) of the isovalently substituted BaGd2Sc2-xInxO7 phase with x = 0.5 was determined by X-ray powder diffraction methods.
Y.A. Titov +5 more
doaj +1 more source
The influence of foreign ions on the crystal lattice of barium titanate [PDF]
, 1982 From investigations of phase diagrams of ternary oxides the lattice sites of foreign ions and compensating vacancies are established. Large trivalent ions occupy barium sites and are completely compensated by titanium vacancies.
Havinga, E.E., Jonker, G.H.
core +2 more sources
High-pressure/high-temperature synthesis of transition metal oxide perovskites [PDF]
, 2006 Perovskite and related Ruddlesden-Popper type transition metal oxides synthesised at high pressures and temperatures during the last decade are reviewed. More than 60 such new materials have been reported since 1995.
Attfield, J. Paul +2 more
core +1 more source
ChemSusChem, 2016 AbstractBand‐gap engineering of oxide materials is of great interest for optoelectronics, photovoltaics, and photocatalysis applications. In this study, electronic structures of perovskite oxynitrides, LaTiO2N and SrNbO2N, and solid solutions, (SrTiO3)1−x(LaTiO2N)x and (SrTiO3)1−x(SrNbO2N)x, are investigated using hybrid density functional calculations.
Naoto, Umezawa, Anderson, Janotti
openaire +3 more sources