Photoluminescence properties of PZT 52/48 synthesized by microwave hydrothermal method using PVA with template

Teixeira, Guilhermina Ferreira; Gasparotto, Gisane; Paris, E. C.; Zaghete, M. A.; Longo, Elson; Varela, José Arana

doi:10.1016/j.jlumin.2011.06.041

Cited by 19 publications

(10 citation statements)

References 24 publications

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“…The fabrication of PZT nanopowders was reported by various methods such as hydroxide co‐precipitation, focused ion beam, polyol auto‐combustion, microwave hydrothermal, milling co‐precipitation, electro‐hydrodynamic atomization, and sol‐gel methods …”

Section: Introductionmentioning

confidence: 99%

“…21 They found that the optical properties of the PZT nanoparticles controlled by suitable dopants. Influence of pHdependent ion leaching on the processing of PZT ceramics was studied by Bakaric et al 22 The effects of dispersant concentration and pH on properties of PZT aqueous suspension were studied by Suntako et al 23 The fabrication of PZT nanopowders was reported by various methods such as hydroxide co-precipitation, 24 focused ion beam, 25 polyol auto-combustion, 26 microwave hydrothermal, 27 milling co-precipitation, 28 electro-hydrodynamic atomization, 29 and sol-gel methods. [30][31][32] In this work, Pb 1.1 (Zr 0.52 Ti 0.48 )O 3 nanopowders were synthesized using the sol-gel method at different pHs.…”

Section: Introductionmentioning

confidence: 99%

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Effect of particle size on the optical properties of lead zirconate titanate nanopowders

Pakizeh

Moradi

2018

J Am Ceram Soc

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Nanopowder samples of lead zirconate titanate (Pb1.1Zr0.52Ti0.48O3 or PZT) were prepared by the sol‐gel method with controlled pH values. The samples were characterized using FTIR spectroscopy, XRD, FE‐SEM, and TEM techniques. Most of the peaks in the XRD pattern were related to the coexistence of tetragonal‐rhombohedral phases and confirmed the formation of PZT with a perovskite structure. Also, the crystallite size of PZT nanopowders was in a range of 17‐28 nm. FTIR spectroscopy revealed a longitudinal optical (LO) and transverse optical (TO) phonon modes corresponding to the stretching vibration of Ti‐O and Zr‐O bonds. The influence of pH values on the LO and TO phonon modes, LO‐TO splitting, refractive index n(ω), extinction coefficient k(ω), and the real ɛ1(ω) and imaginary ɛ2(ω) parts of dielectric function was discussed. These properties were investigated in the mid‐infrared region (450‐750 cm−1). The energy loss function Im[−1/(ɛ)] of PZT nanopowders was obtained by Kramers‐Kronig dispersion relations. The TO phonon frequency decreases with increasing crystallite size of the PZT samples. This effect does not happen at pH 8 to pH 9. As the crystallite size increased from 17.26 nm (at pH 5) to 27.25 nm (at pH 7), the LO‐TO splitting increased as well. This result showed that the optimum pH for absorption of IR radiation and optical application was at pH 7.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of particle size on the optical properties of lead zirconate titanate nanopowders

Pakizeh

Moradi

2018

J Am Ceram Soc

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“…Oliveira et al [9] prepared PZT powders by the polymeric precursor method and the [11,12]. In order to decrease the reaction temperature and shorten the reaction time, Teixeira et al [13] reported the microwave-hydrothermal synthesis of PZT nanocrystallines with the assistance of organic templates. Alternatively, highly active TiCl 3 were selected as the precursor, and fine PZT particles were prepared at a low temperature of 110°C [14,15].…”

Section: Introductionmentioning

confidence: 99%

“…Alternatively, highly active TiCl 3 were selected as the precursor, and fine PZT particles were prepared at a low temperature of 110°C [14,15]. It's found that previous reports were mainly focused on the powder processing, especially concerning the size reduction and yielding efficiency [13,16,17], while the work dealt with subsequent PZT ceramic preparation and piezoelectricity was limited. Thus, in the present work, great efforts were paid toward the sinterability and piezoelectric properties of hydrothermally synthesized PZT powders.…”

Section: Introductionmentioning

confidence: 99%

Improved sintering activity and piezoelectric properties of PZT ceramics from hydrothermally synthesized powders with Pb excess

Kan

Zhu

et al. 2016

J Mater Sci: Mater Electron

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In this work, Pb(Zr, Ti)O 3 (PZT) powders were prepared by traditional hydrothermal method and solid state reaction. Subsequently, PZT ceramics were sintered and their electric properties (including piezoelectric coefficient d 33 , electromechanical coupling coefficient k p and mechanical quality factor Q m ) as a function of sintering temperature (1125-1250°C) were comparably studied. Given that the Pb deficiency may exist in the hydrothermally synthesized PZT powders, effects of Pb excess (0, 20 and 80 mol%) in the hydrothermal precursor on their sinterability were also involved. The hydrothermally synthesized PZT powders with 80 mol% Pb excess showed the highest sintering activity, and their electric properties peaked at 1175°C (d 33 = 225 pC/N, k p = 0.446, Q m = 300). It's demonstrated that A-site deficiency may degrade the sintering activity of PZT powders, and hydrothermal synthesis of PZT powders with appropriate Pb excess was the compromising pathway to increase their sinterability, decrease the sintering temperature and lessen the volatilization of Pb ion in the fabrication of widely applied PZT ceramic.

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“…A lead zirconate titanate (PZT) semiconductor with band gap energy around 2.96-3.72 eV has been extensively studied due to its excellent ferroelectric, dielectric and piezoelectric properties; however, there have been very few research studies regarding its semiconducting behavior [1,2]. In particular, for decades, the PZT solid solution obtained by the oxide mixture and Pechini method has dominated the technological field responsible for the development of piezoelectric and ferroelectric materials [3,4].…”

Section: Introductionmentioning

confidence: 99%

Photoluminescence properties and synthesis of a PZT mesostructure obtained by the microwave-assisted hydrothermal method

Teixeira

Zaghete

Gasparotto

et al. 2012

Journal of Alloys and Compounds

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Photoluminescence properties of PZT 52/48 synthesized by microwave hydrothermal method using PVA with template

Cited by 19 publications

References 24 publications

Effect of particle size on the optical properties of lead zirconate titanate nanopowders

Effect of particle size on the optical properties of lead zirconate titanate nanopowders

Improved sintering activity and piezoelectric properties of PZT ceramics from hydrothermally synthesized powders with Pb excess

Photoluminescence properties and synthesis of a PZT mesostructure obtained by the microwave-assisted hydrothermal method

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