Structural, dielectric, impedance and modulus spectroscopy of Bi2NdTiVO9 ferroelectric ceramics

Structural and Electrical Characteristics of an Aurivillius Family Compound Bi2LaTiVO9

“…The value of the slope near to 1 implies the dominance of Ohmic conduction mechanism in the sample . It is worth pointing out here that the activation energy of the conduction process is slightly smaller than that of the relaxation process (0.91 eV) and is comparable and consistent with that reported one for other members of the Aurivillius family …”

“…[43] It is worth pointing out here that the activation energy of the conduction process is slightly smaller than that of the relaxation process (0.91 eV) and is comparable and consistent with that reported one for other members of the Aurivillius family. [44][45][46][47][48][49]…”

Robust and Flexible Piezoelectric Lead-Free Zn-BCZT/PVDF-HFP Nanogenerators for Wearable Energy Harvesting

“…As shown in Figure , the Nyquist plots of BCZT/PVDF-HFP and Zn-BCZT/PVDF-HFP composites reveal an apparent single component, which validates the good dielectric and conductivity properties of the realized composites as a result of their good homogeneity. , A single flattened semicircular arc shows a non-Debye type of relaxation with the center located below the real Z ′ axis. Stress–stress processes, grain orientation, and atomic defect distribution may all contribute to this deviation from the ideal Debye mature . The comparison of the evolution of the impedance diagram as a function of the type and the percent of dopant (BCZT or Zn-BCZT) in PVDF-HFP polymer illustrates two main points: the first point is that the participation of Zn-BCZT in the conduction mechanism is more important than that of BCZT, which is in accordance with the important disorder introduced by Zn-BCZT compared to BCZT, and the second point is that the lowest percentage of Zn-BCZT as well as BCZT induces the more important degree of conductivity.…”

“…Stress−stress processes, grain orientation, and atomic defect distribution may all contribute to this deviation from the ideal Debye mature. 55 The comparison of the evolution of the impedance diagram as a function of the type and the percent of dopant (BCZT or Zn-BCZT) in PVDF-HFP polymer illustrates two main points: the first point is that the participation of Zn-BCZT in the conduction mechanism is more important than that of BCZT, which is in accordance with the important disorder introduced by Zn-BCZT compared to BCZT, and the second point is that the lowest percentage of Zn-BCZT as well as BCZT induces the more important degree of conductivity. This behavior indicates that when the concentration is low, it causes more disorder in the structure.…”

EVA/PZT‐Composite‐Based Triboelectric Nanogenerator for Energy Harvesting

“…Understanding the rise in dielectric constant value in the lower-frequency area may also be aided by Maxwell-Wagner interfacial polarization and Koop's phenomenology theory. [47,48] The dielectric constant of EVA-PZT 7.5 wt% composites is seen to be maximum in lower-frequency region and further adding of PZT 10 wt% in EVA leads to decrease in dielectric constant that may be due to two reasons: i) uneven particle dispersion of PZT particles can result in the production of agglomerates, which can obstruct the efficient interaction of PZT with the EVA matrix. As a result, polarization may be less efficient and the dielectric constant may be lower.…”