Intrinsic pyroelectric properties of thick, coarse grained Ba 1−x Sr x TiO 3 ceramics

Ianculescu, Adelina; Pintilie, I.; Vasilescu, C; Botea, Mihaela; Iuga, A.; Melinescu, Alina; Drăgan, Nicolae; Pintilie, L.

doi:10.1016/j.ceramint.2016.03.152

Cited by 32 publications

(11 citation statements)

References 60 publications

(72 reference statements)

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“…Pyroelectric materials with perovskite structure such as BaTiO 3 and Pb(Zr,Ti)O 3 (PZT) have been widely used for capacitor and actuator applications near room temperature [19]. For the pyroelectric applications there is only one significant parameter, the value of the total pyroelectric coefficient, defined by the relation [16]:…”

Section: Resultsmentioning

confidence: 99%

Comparison between dielectric and pyroelectric properties of PZFNT and BST type ceramics

Stancu

Amarande

Botea

et al. 2019

PAC

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Ba 0.75 Sr 0.25 TiO 3 (BST) and PbZr 0.68 Fe 0.14 Nb 0.14 Ti 0.04 O 3 (PZFNT) ceramic pellets were obtained by ceramic technology and their structural, ferroelectric and pyroelectric properties were investigated. The relative density of BST and PZFNT is about 93% and 90%, respectively, with an average grain size of 102 µm and 6.45 µm. Both materials have similar room temperature dielectric constants (∼2000), but PZFNT shows higher remnant polarization (∼15 µC/cm 2) and better pyroelectric properties (∼ 1.69 • 10 −4 C/m 2 K), which recommend it for pyroelectric detectors, infrared radiation-and laser pulse energy-meters.

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Section: Resultsmentioning

confidence: 99%

Comparison between dielectric and pyroelectric properties of PZFNT and BST type ceramics

Stancu

Amarande

Botea

et al. 2019

PAC

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“…Barium strontium titanate (Ba 1− x Sr x TiO 3 , BST) is a superior pyroelectric material . At x= 0.30, the highest pyroelectric effect of BST was reached, exhibiting a pyroelectric coefficient of 8 nC cm −1 K −1 . The pyroelectric currents of BST ( x= 0.3) nanoparticles were 2.8, 3.0, and 4.0 nA under the temperature differences of 0.10, 0.20, and 0.45 K, respectively (Figure e–g) .…”

Section: Pyroelectric‐material‐mediated Catalysismentioning

confidence: 91%

Enabling PIEZOpotential in PIEZOelectric Semiconductors for Enhanced Catalytic Activities

Wang

Huang

et al. 2019

Angewandte Chemie

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The past several decades have witnessed significant advances in the synthesis and applications of PIEZOelectric semiconductors, an important class of materials, including piezoelectric, pyroelectric, and ferroelectric semiconductors. The intriguing combination of physical and chemical phenomena in PIEZOelectric semiconductors has triggered much interest in PIEZOcatalysis, that is, catalysis enabled by PIEZOpotential (i.e., piezopotential, pyropotential, and ferropotential)‐induced built‐in electric fields, which is the focus of this Minireview. First, the PIEZOelectric materials are briefly introduced. Second, recent developments in PIEZOcatalysis are highlighted, including the introduction of representative PIEZOelectric semiconductors, their possible catalytic mechanisms, novel techniques to produce their PIEZOelectric effects during the catalytic process, and several examples of PIEZOcatalysis. Finally, the challenges in the field and exciting opportunities to further improve the PIEZOcatalytic efficiency are discussed.

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“…Barium titanate (BaTiO 3 ) has been an important material in the manufacture of electronic components for many years due to its unique properties of high dielectric constant, high ferroelectricity, and piezoelectricity [1][2][3][4][5]. BaTiO 3 -based ceramics are of a wide range of potential applications in ferroelectric random access memory (FRAM) [6], photoelectric humidity sensors [7], solid oxide fuel cells [8], superconductors [9], ferromagnets [10,11], high capacitance capacitors [12][13][14], pyroelectric detectors [15], and magneto resistors [16]. Especially, tetragonal BaTiO 3 ceramics are widely used in multi-layer ceramic capacitors (MLCC) [17], thermistors [18], and piezoelectric sensors [19].…”

Section: Introductionmentioning

confidence: 99%

TiO2-Seeded Hydrothermal Growth of Spherical BaTiO3 Nanocrystals for Capacitor Energy-Storage Application

et al. 2020

Crystals

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Simple but robust growth of spherical BaTiO3 nanoparticles with uniform nanoscale sizes is of great significance for the miniaturization of BaTiO3-based electron devices. This paper reports a TiO2-seeded hydrothermal process to synthesize spherical BaTiO3 nanoparticles with a size range of 90–100 nm using TiO2 (Degussa) and Ba(NO3)2 as the starting materials under an alkaline (NaOH) condition. Under the optimum conditions ([NaOH] = 2.0 mol L−1, RBa/Ti = 2.0, T = 210 °C and t = 8 h), the spherical BaTiO3 nanoparticles obtained exhibit a narrow size range of 91 ± 14 nm, and the corresponding BaTiO3/polymer/Al film is of a high dielectric constant of 59, a high break strength of 102 kV mm−1, and a low dielectric loss of 0.008. The TiO2-seeded hydrothermal growth has been proved to be an efficient process to synthesize spherical BaTiO3 nanoparticles for potential capacitor energy-storage applications.

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Intrinsic pyroelectric properties of thick, coarse grained Ba 1−x Sr x TiO 3 ceramics

Cited by 32 publications

References 60 publications

Comparison between dielectric and pyroelectric properties of PZFNT and BST type ceramics

Comparison between dielectric and pyroelectric properties of PZFNT and BST type ceramics

Enabling PIEZOpotential in PIEZOelectric Semiconductors for Enhanced Catalytic Activities

TiO2-Seeded Hydrothermal Growth of Spherical BaTiO3 Nanocrystals for Capacitor Energy-Storage Application

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