Study of phase transformation dynamics, structural and optical properties of ferroelectric SrTiO3 ceramics
Source abstract
Abstract
Abstract In this work, ferroelectrics of the SrTiO3 type were obtained using solid-phase synthesis method and subsequent thermal annealing. Using the X-ray diffraction method, the dynamics of phase transformations of the TiO2/Sr2Ti6O13/Sr3Ti2O7 → TiO2/Sr2Ti6O13/Sr3Ti2O7/SrTiO3 → SrTiO3/Ti3O5 type was established. According to the data obtained, it was found that thermal annealing in the range of 200–1100 °C allows obtaining both complex multiphase ceramics and SrTiO3 ceramics with a perovskite structure. As a result of determination of the optical properties, it was found that an increase in the structural ordering degree and the formation of a stable SrTiO3 phase, a broad induced absorption band appears in the region of 3.0–3.3 eV, with a maximum of 3.14 eV. During the determination of ferroelectric characteristics, it was found that the formation of a stable SrTiO3 phase in ceramics structure leads to a sharp increase in dielectric constant and a decrease in Curie-Weiss temperature from 125-130 °C to 105–110 °C.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · Electronic and Structural Properties of Oxides · Microwave Dielectric Ceramics Synthesis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (36)
Show source-provided references
1. Physics of SrTiO3-based heterostructures and nanostructures: a review10.1088/1361-6633/aa892d ↗
2. Effects of doping on the lattice parameter of SrTiO310.1063/1.4730998 ↗
3. Enhancing superconductivity in SrTiO3 films with strain10.1126/sciadv.aaw0120 ↗
4. Surface pyroelectricity in cubic SrTiO310.1002/adma.201904733 ↗
5. Electronic phase separation at the LaAlO3/SrTiO3 interface10.1038/ncomms1192 ↗
6. Oxygen vacancy enhanced photocatalytic activity of pervoskite SrTiO310.1021/am5051907 ↗
7. Size-controlled spalling of LaAlO3/SrTiO3 micromembranes10.1021/acsami.0c21612 ↗
8. Enhanced thermoelectric properties of vanadium doped SrTiO3: a resonant dopant approach10.1016/j.jallcom.2020.154958 ↗
9. Nature of SrTiO3/TiO2 (anatase) heterostructure from hybrid density functional theory calculations10.1063/5.0007138 ↗
10. Enhanced piezoelectric-induced catalysis of SrTiO3 nanocrystal with well-defined facets under ultrasonic vibration10.1016/j.ultsonch.2019.104819 ↗
11. SrTiO3/Bi4Ti3O12 nanoheterostructural platelets synthesized by topotactic epitaxy as effective noble-metal-free photocatalysts for pH-neutral hydrogen evolution10.1021/acsami.0c16253 ↗
12. Semiconductor flexoelectricity in graphite-doped SrTiO3 ceramics10.1016/j.ceramint.2020.10.239 ↗
13. Tensile strain for band engineering of SrTiO3 for increasing photocatalytic activity to water splitting10.1016/j.apcatb.2020.119292 ↗
14. Broadband near-infrared luminescence from transparent glass–ceramics containing Ni2+-doped SrTiO3 nanocrystals10.1016/j.optmat.2012.12.004 ↗
15. Enhanced photocatalytic performance of SrTiO3 powder induced by europium dopants10.1016/j.jre.2020.07.002 ↗
16. Effective driving of Ag-loaded and Al-doped SrTiO3 under irradiation at λ> 300 nm for the photocatalytic conversion of CO2 by H2O10.1021/acsaem.9b01927 ↗
17. Synthesis of SrTiO 3 fibers and their effects on the thermoelectric properties of La 0.1 Dy 0.1 Sr 0.75 TiO 3 ceramics10.1007/s13391-018-00113-8 ↗
18. Nonreciprocal transport in gate-induced polar superconductor SrTiO310.1126/sciadv.aay9120 ↗
19. Significant improvement in electrical conductivity and figure of merit of nanoarchitectured porous SrTiO3 by La doping optimization10.1021/acsami.0c01869 ↗
20. Enhancement of luminescence properties of SrTiO3: Sm3+ nanophosphor by charge compensator Li+ ion10.1016/j.optmat.2020.110115 ↗
21. Bi-modified SrTiO3-based ceramics for high-temperature energy storage applications10.1111/jace.16844 ↗
22. Direct observation of stable negative capacitance in SrTiO3@ BaTiO3 heterostructure10.1002/aelm.201901005 ↗
23. SrTiO3-based thermoelectrics: progress and challenges10.1016/j.nanoen.2020.105195 ↗
24. Superconductivity in dilute SrTiO3: a review10.1016/j.aop.2020.168107 ↗
25. Anharmonicity explains temperature renormalization effects of the band gap in SrTiO310.1021/acs.jpclett.0c00183 ↗
26. Giant photo-induced dielectricity in SrTiO310.1143/JPSJ.72.41 ↗
27. Structural, dielectric and electrical properties of La2O3 doped SrTiO3 ceramics
28. Ab initio and classical simulations of defects in SrTiO310.1016/S0927-0256(01)00171-9 ↗
29. Characterisation of Ti and Sr atomic environments in SrTiO3 before and after ion beam irradiation by X-ray absorption spectroscopy10.1016/j.nimb.2005.02.017 ↗
30. Nanoscale to microscale reversal in room-temperature plasticity in SrTiO3 by tuning defect concentration10.1016/j.scriptamat.2020.07.033 ↗
31. Roles of defects and grain sizes in photoluminescence of nanocrystalline SrTiO310.1088/0953-8984/11/29/312 ↗
32. Detailed chemical mechanism of the phase transition in nano-SrTiO3 perovskite with visible luminescence10.1016/j.inoche.2020.108125 ↗
33. Crystallization study of SrTiO3 thin films prepared by dip coating10.1590/S1516-14391999000200009 ↗
34. Electroluminescence from the light-emitting devices with erbium-doped SrTiO3 films on oxidized silicon substrate10.1016/j.optmat.2021.111402 ↗
35. Ultrasound assisted fabrication of SrTiO3 nanopowders: effect of electron beam induced structural and luminescence properties for solid state lightning and high temperature dosimetry applications10.1016/j.optmat.2019.04.030 ↗
36. The dependence of optoelectric performance on channel length in photodetectors with MBE CdTe single-crystalline thin films on perovskite SrTiO310.1016/j.optmat.2020.110276 ↗