Applications of PZT Dielectric Ceramics in High-Energy Storage Systems

Neto, L. P. Silva; Rossi, J.O.; Silva, A.R.

doi:10.4028/www.scientific.net/msf.727-728.505

Cited by 7 publications

(1 citation statement)

References 3 publications

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“…Lead zirconate titanate (PZT) and Barium titanate (BaTiO 3 ) are the most widely used ceramic piezo materials. This ceramic material is a mixture of Lead zirconate and Lead Titanate, which significantly influences the effect of piezoelectricity 26,27 . These piezoelectric ceramics are very good at exhibiting Dielectric characteristics and possess more stability and sensitivity at very high temperatures than the other piezo‐ceramic materials.…”

Section: Introductionmentioning

confidence: 99%

Polyvinylidene fluoride, an advanced futuristic smart polymer material: A comprehensive review

Nivedhitha

Jeyanthi

2022

Polymers for Advanced Techs

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There was a fast development of various piezoelectric materials in the past two decades due to their numerous applications. Piezoelectric materials made up of natural quartz crystals were used in ultrasonic detectors in the early days. Later, the modern synthetic piezoelectric materials known as ferroelectric ceramics, such as Lead zirconate titanate (PZT), were developed, which were capable of exhibiting piezoelectricity several times greater than natural crystals. Later, the declination of ceramics began as they contained large amounts of lead content, which was considered harmful to both humans and the environment. Finally, a new era in the history of piezoelectric materials boomed with the outbreak of polymer materials. Polyvinylidene fluoride (PVDF) is a piezoelectric polymer material that has drawn the attention of researchers, from the family of fluoropolymers and has paved a new path in the field of polymer science and technology. PVDF has earned the renown of being an excellent piezoelectric material due to its unique and versatile exhibition of piezoelectric and dielectric properties. Furthermore, PVDF can exhibit incredible thermal stability and mechanical strength with flexible processing and low cost compared with the other piezoelectric crystals and ceramics. This comprehensive review mainly focuses on the evolution of piezoelectric materials from crystals to polymers with their advantages and significant drawbacks. Thus, the main objective of this review is to present a detailed description of PVDF concerning its uniqueness as a piezoelectric material and versatile properties, followed by various advanced fabrication techniques and their impact on doping various nanofillers with respective applications. Though PVDF is renowned for its significant applications such as sensors, actuators, energy harvesting and biomedical devices, a tabular chart has been specially framed in one‐liners which highlights the real‐time experimental outcomes where PVDF can be specified as a futuristic polymer for multifunctional applications. A few reports resulted that with increasing graphite and MWCNT fillers into PVDF film, the EMI shielding effectiveness value rose to 14.64 dB at a frequency of 8‐12 Hz. A few reports resulted that by adding ZnO and BaTiO3, the electrical output increased significantly, which is more suitable as a nanogenerator. After an extensive literature survey, we found that reviews are very limited and restricted to specific applications and properties. This review is an overall brief explanation of enormous research works carried out by various experts and presented in a modest way with pictorial and tabular representation for the convenience of researchers. Finally, this review attempts to provide source material to direct researchers towards a fertile area of research with a better understanding of the fundamentals and advancement of polymer piezoelectric materials.

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Section: Introductionmentioning

confidence: 99%

Polyvinylidene fluoride, an advanced futuristic smart polymer material: A comprehensive review

Nivedhitha

Jeyanthi

2022

Polymers for Advanced Techs

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Pyroelectric Thermal Energy Harvester Based on Sol‐Gel‐Derived PLZT Films

Mahlawat,

Tomar,

Gupta

2024

Physica Status Solidi (a)

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The present work focuses on studying the pyroelectric properties of chemical solution deposition‐grown Pb1−xLax(Zr0.4Ti0.6)O3 films on nickel substrate which are annealed at constant temperature of 650 °C with lanthanum concentrations ranging from x = 2–8% respectively. Structural studies reveal polycrystalline nature in all the PLZT films. The dielectric constant values rise from 497 to 1048 as La doping concentration rises from 2% to 6% at a constant frequency of 1 MHz, reaching a maximum value of 1048 for 6% La doping with little variation in dielectric loss between 0.03 and 0.05. As La doping level increases from 2% to 6%, the remnant (Pr) and saturation (Ps) polarization values increase from 12 to 47 μC cm−2 and 18 to 53 μC cm−2 respectively. The leakage current is found to be 2.68 × 10−8 A for 2%‐doped PZT film and it reduces to 2.94 × 10−10 A for PLZT (6% doping) film. The influence of lanthanum doping on the pyroelectric properties has been studied in detail. The value of pyroelectric coefficient (p) is varied from 240 × 10−3 to 980 × 10−3 Cm−2 K−1 and current responsivity is varied from 960 × 10−10 to 3920 × 10−10 mV−1 with the variation in lanthanum content from 2% to 6%, respectively. The promising pyroelectric results found in PLZT films encourage these films in energy applications field.

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