Sol-Gel Synthesis of Nanocrystalline PZT Using a Novel System

Jacob, Karl; Panicker, N. Rani; Selvam, I. Packia; Kumar, V.

doi:10.1023/a:1027457929302

Cited by 26 publications

(10 citation statements)

References 29 publications

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“… 36 Other bottom-up methods such as sol–gel synthesis have also proven efficient to yield piezoelectric nanoparticles. 37 All these methods have been used indistinctively to nanostructure piezoelectric materials with a perovskite structure, such as lead zirconate titanate (PZT) and BaTiO 3 , as well as piezoelectric materials with a wurtzite structure, e.g. , ZnO.…”

Section: Physics Of Piezoelectric Nanomaterials and Ultrasound Wavesmentioning

confidence: 99%

Piezoelectric Nanomaterials Activated by Ultrasound: The Pathway from Discovery to Future Clinical Adoption

et al. 2021

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Electrical stimulation has shown great promise in biomedical applications, such as regenerative medicine, neuromodulation, and cancer treatment. Yet, the use of electrical end effectors such as electrodes requires connectors and batteries, which dramatically hamper the translation of electrical stimulation technologies in several scenarios. Piezoelectric nanomaterials can overcome the limitations of current electrical stimulation procedures as they can be wirelessly activated by external energy sources such as ultrasound. Wireless electrical stimulation mediated by piezoelectric nanoarchitectures constitutes an innovative paradigm enabling the induction of electrical cues within the body in a localized, wireless, and minimally invasive fashion. In this review, we highlight the fundamental mechanisms of acoustically mediated piezoelectric stimulation and its applications in the biomedical area. Yet, the adoption of this technology in a clinical practice is in its infancy, as several open issues, such as piezoelectric properties measurement, control of the ultrasound dose in vitro , modeling and measurement of the piezo effects, knowledge on the triggered bioeffects, therapy targeting, biocompatibility studies, and control of the ultrasound dose delivered in vivo , must be addressed. This article explores the current open challenges in piezoelectric stimulation and proposes strategies that may guide future research efforts in this field toward the translation of this technology to the clinical scene.

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Section: Physics Of Piezoelectric Nanomaterials and Ultrasound Wavesmentioning

confidence: 99%

Piezoelectric Nanomaterials Activated by Ultrasound: The Pathway from Discovery to Future Clinical Adoption

et al. 2021

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“…Several wet chemical routes, such as sol-gel, hydrothermal, and coprecipitation method, etc., have been employed to obtain PZT powders of high purity, chemical homogeneity, and nanocrystalline size. [9][10][11][12][13][14][15][16][17][18] Among these, the sol-gel method is preferred due to its simple set up and relatively low processing temperature. Wu et al 18 obtained pure Pb (Zr 0.52 Ti 0.48 )O 3 powders with the average particle sizes of 30-60 nm at a calcination temperature as low as 600°C.…”

Section: Introductionmentioning

confidence: 99%

“…Several wet chemical routes, such as sol–gel, hydrothermal, and coprecipitation method, etc., have been employed to obtain PZT powders of high purity, chemical homogeneity, and nanocrystalline size . Among these, the sol–gel method is preferred due to its simple set up and relatively low processing temperature.…”

Section: Introductionmentioning

confidence: 99%

Processing and Characterization of Lead Zirconate Titanate Nanopowders by a Simple Water‐Based Sol–Gel Method

Zhang

Wang

2012

J. Am. Ceram. Soc.

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Lead zirconate titanate (PZT) nanopowders with high sintering activity were synthesized from economical raw materials by a simple water‐based sol–gel method. Citric acid was used to complex with the metal cations, and the effect of the molar ratio of citric acid to metal cation (C:M) was investigated. The decomposition of the dried gel and the phase formation process of the PZT powders were investigated using thermal analysis, X‐ray diffraction, and Fourier transform infrared spectroscopic techniques. The average particle size of the PZT powders was 13 nm after calcination at 600°C for 3 h, as determined by transmission electron microscope. The nanopowders prepared could be sintered at a temperature as low as 900°C, and dense PZT ceramics of pure perovskite phase were obtained. The electric properties of the ceramics derived from nanopowders were compared with those prepared by the solid‐state method. The results show that due to larger c/a ratio and small grain size, the electric properties are enhanced.

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“…Strontium-substituted PLZT were synthesized by the sol-gel method as per the procedure adapted from our earlier work. 20 The gel-derived powders, obtained after calcination at 6001C for 2 h, were isostatically pressed at 200 MPa into pellets of diameter 10 mm and thickness 1.0 mm. The PLZT specimens were sintered at a temperature of 12001C for 3 h under constant PbO atmospheres maintained using a mixture, PbZrO 3 110% ZrO 2 , as reported.…”

Section: Introductionmentioning

confidence: 99%

Influence of Strontium Substitution on Ferroelectric–Relaxor Transition in PLZT (7/60/40)

Priyadarsini

Salija

Divya

et al. 2010

Journal of the American Ceramic Society

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In the typical ferroelectric, (Pb1−xLax)(ZryTi1−y)O3 [PLZT (7/60/40)] crossover to the relaxor phase has been achieved by isovalent A‐site substitution. Dielectric, ferroelectric, electric field‐induced strain, and structural studies reveal that the influence of the chemical substituent strontium on this crossover is qualitatively similar to pressure‐induced effects in compositionally disordered perovskites.

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Sol-Gel Synthesis of Nanocrystalline PZT Using a Novel System

Cited by 26 publications

References 29 publications

Piezoelectric Nanomaterials Activated by Ultrasound: The Pathway from Discovery to Future Clinical Adoption

Piezoelectric Nanomaterials Activated by Ultrasound: The Pathway from Discovery to Future Clinical Adoption

Processing and Characterization of Lead Zirconate Titanate Nanopowders by a Simple Water‐Based Sol–Gel Method

Influence of Strontium Substitution on Ferroelectric–Relaxor Transition in PLZT (7/60/40)

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