Alexander Abramov, Anton Turygin, Ismail Hossain, Li Jin, Vladimir Shur, Denis Alikin, Yuan Yao, Alex V. Trukhanov, Dmitry Karpinsky
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Evolution of the polar phase across morphotropic phase boundary in 0.65BiFeO3–0.35BaTiO3–SrTiO3 solid solutions
This study explores the impact of SrTiO3 (STO) chemical substitution on the crystal lattice and piezoelectric properties of BiFeO3–BaTiO3 (BFO-BTO) solid solution. The investigation involves crystal structure analysis based on the X-ray diffraction data and local-scale measurements of the piezoelectric properties using piezoresponse force microscopy. We demonstrated that the substitution by Sr results in the enhancement of the electromechanical response as well as the volume fraction of the polar phase, while the crystal structure remains pseudocubic. The enhancement of the piezoelectric properties is associated with the reduction of the chemical disorder and breaking of the core–shell structure in the grains of the ceramics. This research reveals the intricate interplay between the chemical composition, the crystal structure, and electromechanical properties of the BFO-BTO-STO ceramics, identifying the compositions with potential interest for energy storage applications.
期刊介绍：
The Journal of Materials Science: Materials in Electronics is an established refereed companion to the Journal of Materials Science. It publishes papers on materials and their applications in modern electronics, covering the ground between fundamental science, such as semiconductor physics, and work concerned specifically with applications. It explores the growth and preparation of new materials, as well as their processing, fabrication, bonding and encapsulation, together with the reliability, failure analysis, quality assurance and characterization related to the whole range of applications in electronics. The Journal presents papers in newly developing fields such as low dimensional structures and devices, optoelectronics including III-V compounds, glasses and linear/non-linear crystal materials and lasers, high Tc superconductors, conducting polymers, thick film materials and new contact technologies, as well as the established electronics device and circuit materials.
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