Grain size dependence of properties in lead nickel niobate-lead zirconate titanate films

Griggio, Flavio; Trolier-McKinstry, Susan

doi:10.1063/1.3284945

Cited by 36 publications

(25 citation statements)

References 27 publications

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“…The former can be achieved through use of appropriately oriented single crystals. Reductions in domain wall mobility, however, can be tailored by decreasing the grain size, 70,71 increasing the internal bias in the material, 72 mechanically clamping the film to an underlying substrate, 73 or modulating the defect chemistry of the ferroelectric material.…”

Section: Device and System Considerations For Materials Selection Andmentioning

confidence: 99%

Next-generation electrocaloric and pyroelectric materials for solid-state electrothermal energy interconversion

Mantese²,

et al. 2014

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Thin-film electrocaloric and pyroelectric electrothermal interconversion energy sources have recently emerged as viable means for primary and auxiliary solid-state cooling and power generation. Two significant advances have facilitated this development: (1) the formation of high-quality polymeric and ceramic thin films with figures of merit that project system-level performance as a large percentage of Carnot efficiency and (2) the ability of these newer materials to support larger electric fields, thereby permitting operation at higher voltages.This makes the power electronic architectures more favorable for thermal to electric interconversion. Current research targets to adequately address commercial device needs include reduction of parasitic losses, increases in mechanical robustness, and the ability to form nearly free-standing elements with thicknesses in the range of 1-10 m. This article describes the current state-ofthe-art materials, thermodynamic cycles, and device losses and points toward potential lines of research that would lead to substantially better figures of merit for electrothermal interconversion.Keywords: Material type-polymer (143), Material type-ceramic (121), Functionality-energy generation (189), , Material form-film (231), Transport-ferroelectricity (288) Fundamentals of ferroelectrics materials: Pyroelectrics and ElectrocaloricsIt has long been known that, when heated, materials such as the borosilicate tourmaline have the ability to attract objects such as pieces of feather, pollen, and cloth. This is due to the appearance of a surface charge in response to a temperature change. The history of this phenomenon, which is known as the pyroelectric effect (PE), was charted by Lang, 1 from its first description by Dielectrics whose structures possess both a unique axis of symmetry and lack a center of symmetry (i.e., that are "polar") display a spontaneous polarization (PS) and will exhibit a PE due to temperature-induced changes in PS. MRS BulletinThese variations in PS result in uncompensated charge appearing along surfaces that have a component normal to the polar axis, generating a net voltage across the dielectric. If the surfaces are provided with electrodes that are connected through an external circuit, this surface charge can cause a current to flow, potentially resulting in useful work. In the absence of an applied electric field or applied stress, the pyroelectric coefficient p(T) is defined as the rate of change of spontaneous polarization with temperature such that p(T) = dPS/dT. If electrodes are applied to the major faces perpendicular to the polar axis, as illustrated in Figure 1a, and the temperature is changed at a rate dT/dt, then the short-circuitThe converse of the pyroelectric effect is called the electrocaloric effect (ECE; see Figure 1b). Here, an electric field applied to a polar dielectric causes a change in temperature in the material. Conceptually, the ECE is somewhat harder to grasp than the PE, but it is analogous to the changes in temperature and en...

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Section: Device and System Considerations For Materials Selection Andmentioning

confidence: 99%

Next-generation electrocaloric and pyroelectric materials for solid-state electrothermal energy interconversion

Mantese²,

et al. 2014

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“…5 Later, measurements of the piezoelectric properties, 6,7 Rayleigh response, 8 and field-induced switching indicated decreased extrinsic contribution to the functional properties as grain size decreased. [9][10][11] Recently, domain wall pinning was studied using phase field models and density functional theory. It was found that stress concentrations and large internal electric fields at grain boundaries and triple points influence both domain nucleation and domain wall pinning.…”

Section: Introductionmentioning

confidence: 99%

Domain pinning near a single-grain boundary in tetragonal and rhombohedral lead zirconate titanate films

et al. 2015

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The interaction of grain boundaries with ferroelectric domain walls strongly influences the extrinsic contribution to piezoelectric activity in Pb(Zr,Ti)O 3 (PZT), ubiquitous in modern transducers and actuators. However, the fundamental understanding of these phenomena has been limited by complex mechanisms originating from the interplay of atomic-level domain wall pinning, collective domain wall dynamics, and emergent mesoscopic behavior. This contribution utilizes engineered grain boundaries created by depositing epitaxial PZT films with various Zr:Ti ratio onto 24º SrTiO 3 tilt bicrystals. The nonlinear piezoelectric response and surface domain structure across the boundary are investigated using piezoresponse force microscopy whilst cross

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“…33,34 For example, Randall et al 35 showed that the piezoelectric coefficients, d 33 and Àd 31, and electromechanical coupling constants, Àk 31 and Àk p , of PZT ceramics increased with an increasing grain size due to the extrinsic contributions of domain switching. Similar grain size effects on piezoelectric properties were also found in PMN-PT, 36 lead nickel niobate-lead zirconate titanate (PNN-PZT), 37 and in lead-free piezoelectrics such as sodium potassium niobate. 38 Piezoelectric thin films with a larger grain size were also shown to exhibit better d 33 and Àd 31 coefficients at the same thickness.…”

Section: Introductionmentioning

confidence: 53%

Enhancing detection sensitivity of piezoelectric plate sensor by increasing transverse electromechanical coupling constant

Shih

2013

Journal of Applied Physics

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In this study, we examined how the materials’ properties of a lead magnesium niobate-lead titanate solid solution, [Pb(Mg1/3Nb2/3)O3]0.63[PbTiO3]0.37 (PMN-PT) piezoelectric plate sensor (PEPS) affected the enhancement of the relative detection resonance frequency shift, −Δf/f of the sensor, where f and Δf were the resonance frequency and resonance frequency shift of the sensor, respectively. Specifically, the electromechanical coupling constant, −k31, of the PMN-PT PEPS was varied by changing the grain size of the piezoelectric layer as well as by applying a bias direct current electric field. Detection of streptavidin at the same concentration was carried out with biotin covalently immobilized on the surface of PEPS. It is shown that the −Δf/f of the same streptavidin detection was increased by more than 2-fold when the −k31 increased from 0.285 to 0.391.

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Grain size dependence of properties in lead nickel niobate-lead zirconate titanate films

Cited by 36 publications

References 27 publications

Next-generation electrocaloric and pyroelectric materials for solid-state electrothermal energy interconversion

Next-generation electrocaloric and pyroelectric materials for solid-state electrothermal energy interconversion

Domain pinning near a single-grain boundary in tetragonal and rhombohedral lead zirconate titanate films

Enhancing detection sensitivity of piezoelectric plate sensor by increasing transverse electromechanical coupling constant

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