We report the first instance of deposition of preferentially oriented, nanocrystalline, and nanocolumnar strontium-doped lead zirconate titanate (PSZT) ferroelectric thin films directly on thermal silicon dioxide. No intermediate seed or activation layers were used between PSZT and silicon dioxide. The deposited thin films have been characterised using a combination of diffraction and microscop...

Microstructure and electric properties of lead lanthanum titanate thin film under transverse electric fields Z. T. Song Department of Applied Physics and Materials Research Center, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China and State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Metallurgy, Chinese Academy of Sciences, 865 Changning...

Quality factor variation with top electrode area in thin-film barium–strontium–titanate parallel-plate capacitors is discussed. At low frequencies, the geometry dependence is consistent with the presence of a parallel parasitic loss pathway enabled by conduction over the device mesa surface. At high frequencies, the variation in the quality factor with top electrode area is due to a geometry-in...

Ilmenite (FeTiO3) is a suitable mineral to produce titanium dioxide (TiO2) for photocatalyst applications. Therefore, this research was conducted synthesize TiO2 material from oxysulfate (TiOSO4) extracted Indonesia local ilmenite and modify into nanotubes through hydrothermal process at 150 °C 24 hours followed by post-hydrothermal treatment with temperature variations of 80,100, 120, 12 hours...

The local environment and oxidation state of the Fe impurity in strontium titanate are studied using XAFS spectroscopy. influence annealing temperature deviation from stoichiometry on possibility incorporation into A B sites perovskite structure is studied. results obtained X-ray diffraction, XANES spectra, EXAFS spectra suggest that at high iron atoms, least partially (up to 30%), enter SrTiO ...

Peroxo-titanium decorated H-titanate-nanotube-based hierarchical microspheres (PTHM) with a large surface area (368 m(2) g(-1)) and mesoporous structure were prepared by an alkaline hydrothermal method in the presence of H2O2 followed by acid wash, and they exhibited improved activity in degradation of Rhodamine B under visible light irradiation.

The dc and ac electrical properties of PTC barium titanate ceramics were measured in the temperature range from 30 to 450°C. The Heywang's model alone is not sufficient to perform a quantitative analysis of the results. The heterogeneity of the system is taken into account.

Surface-hydrogenated anatase TiO(2) (TiO(2)-H) nanowire-microspheres were prepared by converting protonated titanate nanotube to TiO(2)-H under a hydrogen atmosphere. We show that TiO(2)-H nanowire-microspheres have Ti-H and O-H bonds on their surface and exhibit improved visible-light absorption and highly enhanced photocatalytic activity.

WO(3) modified titanate network film was prepared by an improved low-temperature two-step hydrothermal method. It showed a high mineralization yield (over 90%) for 2-propanol (IPA) photo-decomposition by only 2 h of visible light (lambda > or = 420 nm) irradiation. Furthermore, it exhibited quite good stability in this photocatalytic mineralization.

CoTiO3-clay nano-composites were synthesized via a conventional sol-gel method; the gel was calcinated at 500 - 800°C for 2 hours. The presence of rhombohedra phase of CoTiO3 in clay matrix was confirmed by XRD, FTIR, SEM. Cobalt titanate-clay nano-composites were prepared with 5-20%(w/w) by sol-gel method. The spectra results were investigated at 20% (w/w) concentration .The optimum condition ...