Unlocking Electrostrain in Plastically Deformed Barium Titanate.

Achieving substantial electrostrain alongside a large effective piezoelectric strain coefficient (d*) in piezoelectric materials remains a formidable challenge for advanced actuator applications. Here, a straightforward approach to enhance these properties by strategically designing the domain structure and controlling the domain switching through the introduction of arrays of ordered {100}<100> dislocations is proposed. This dislocation engineering yields an intrinsic lock-in steady-state electrostrain of 0.

Ferroelectricity and Schottky Heterojunction Engineering in AgNbO: A Simultaneous Way of Boosting Piezo-photocatalytic Activity.

As an efficient and economical way of dealing with organic pollutants, piezo-photocatalysis has attracted great interest. In this work, we demonstrated that ferroelectricity and Schottky heterojunction engineering could significantly enhance the piezo-photocatalytic activity of AgNbO. The poled 20 mol % K doped AgNbO disclosed its superior piezo-photocatalytic activity of 0.

Tribocatalytic degradation of dyes by tungsten bronze ferroelectric BaSrNbTaO submicron particles.

Searching for a new approach in environmental remediation in terms of dye degradation is important in industrialized society. In this work, ferroelectric BaSrNbTaO (BSNT) submicron powders prepared by the high-temperature solid-phase method are used for dye degradation under magnetic stirring. The dye in solution can be quickly degraded by magnetically stirring BSNT submicron particles in the dark in ambient temperature conditions.

Ultrahigh Energy Storage Density and Efficiency in BiNaTiO-Based Ceramics via the Domain and Bandgap Engineering.

Environmentally friendly lead-free dielectric ceramics have attracted wide attention because of their outstanding power density, rapid charge/dischargerate, and superior stability. Nevertheless, as a hot material in dielectric ceramic capacitors, the energy storage performance of NaBiTiO-based ceramics has been not satisfactory because of their higher remnant polarization value and low dielectric breakdown strength, which is a problem that must be urgently overcome. In this work, the (1 - ) (0.

Long-Term Stability of Different Kinds of Gas Nanobubbles in Deionized and Salt Water.

Nanobubbles have many potential applications depending on their types. The long-term stability of different gas nanobubbles is necessary to be studied considering their applications. In the present study, five kinds of nanobubbles (N, O, Ar + 8%H, air and CO) in deionized water and a salt aqueous solution were prepared by the hydrodynamic cavitation method.

Constructing phase boundary in AgNbO antiferroelectrics: pathway simultaneously achieving high energy density and efficiency.

Dielectric capacitors with high energy storage density (W) and efficiency (η) are in great demand for high/pulsed power electronic systems, but the state-of-the-art lead-free dielectric materials are facing the challenge of increasing one parameter at the cost of the other. Herein, we report that high W of 6.3 J cm with η of 90% can be simultaneously achieved by constructing a room temperature M2-M3 phase boundary in (1-x)AgNbO-xAgTaO solid solution system.

New Pb(Mg1/3Nb2/3)O3-Pb(In1/2Nb1/2)O3-PbZrO3-PbTiO3 Quaternary Ceramics: Morphotropic Phase Boundary Design and Electrical Properties.

Four series of Pb(Mg1/3Nb2/3)O3-Pb(In1/2Nb1/2)O3-PbZrO3-PbTiO3 (PMN-PIN-PZ-PT) quaternary ceramics with compositions located at the morphotropic phase boundary (MPB) regions were prepared. The MPBs of the multicomponent system were predicted using a linear combination rule and experimentally confirmed by X-ray powder diffraction and electrical measurement. The positions of MPBs in multicomponent systems were found in linear correlation with the tolerance factor and ionic radii of non-PT end-members.

Ferroelectricity and Self-Polarization in Ultrathin Relaxor Ferroelectric Films.

We report ferroelectricity and self-polarization in the (001) oriented ultrathin relaxor ferroelectric PMN-PT films grown on Nb-SrTiO3, SrRuO3 and La0.7Sr0.3MnO3, respectively.