Oxygen effects on barium strontium titanate morphology and MOS device performance

Abdel‐Motaleb, Ibrahim; Akula, Bhavya; Leedy, Kevin D.; Cortez, Rebecca

doi:10.1016/j.matlet.2012.11.003

Cited by 9 publications

(2 citation statements)

References 29 publications

(26 reference statements)

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“…The vacancies in the system can be polarised under an Downloaded by [UOV University of Oviedo] at 10:59 14 October 2014 alternating electric field. Therefore, the dielectric loss increases with the increasing of Zn content [17,21]. Figure 6 shows the frequency dependence of dielectric constant of the pure and Zn-doped BZT films.…”

Section: Film Characterizationmentioning

confidence: 99%

Dielectric Properties and Structures of Zn-doped Barium Zirconate Titanate Films

Liu

Deng

Liu

et al. 2014

Integrated Ferroelectrics

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The Zn-doped Ba(Zr 0.2 Ti 0.8 )O 3 (BZT) films were prepared by sol-gel processing on Pt/Ti/SiO 2 /Si substrates. The crystal structures, surface morphology, dielectric properties of Zn-doped BZT films were investigated as a function of Zn content. It is found that the films belong to the perovskite structure. In addition, the dielectric constant decreases at first and then increases with the increasing of Zn content, but the dielectric loss decreases with the increasing of Zn content at room temperature. Finally, it also can be found that the Curie temperature of the Zn-doped BZT films is lower than that of the pure BZT films.

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Section: Film Characterizationmentioning

confidence: 99%

Dielectric Properties and Structures of Zn-doped Barium Zirconate Titanate Films

Liu

Deng

Liu

et al. 2014

Integrated Ferroelectrics

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“…It has been reported that BST with Ba 1-x Sr x TiO 3 (x:0-1) compositions possesses attractive dielectric properties and fulfills the requirements of high permittivity capacitors, electro-optic devices, pyroelectric sensors, and piezoelectric transducers (Manavalan, 2005). BST has a unique perovskite crystal structure with piezoelectric, pyroelectric, and ferroelectric properties (Motaleb et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Exploring the Effect of Particle Concentration and Irradiation Time in the Synthesis of Barium Strontium Titanate (BST) Ba(1-X)SrxTiO3 (X:0-1) Nanoparticles by High Power Ultrasonic Irradiation

Yustanti¹,

Hafizah²,

Manaf³

2016

IJTech

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Barium strontium titanate (BST) or Ba 1-x Sr x TiO 3 with x=0-1 possesses superior dielectric properties, which are widely used in many applications like in communication technology, electronic instrumentations, and various electrical devices. In this paper, the characterization of the particle and crystallite size of Ba 1-x Sr x TiO 3 (x: 0; 0.3; 0.7) is described. A two-step refinement commenced: first by mechanical milling, and then a further refinement under ultrasonic irradiation in a high power sonicator was applied to Ba 1-x Sr x TiO 3 (x: 0; 0.3; 0.7) particles. The crystalline powders were obtained through mechanically alloyed standard research grade BaCO 3 , TiO 2 , and SrCO 3 precursors in a planetary ball mill.The powders were first found heavily deformed after 60 hours of milling and then went through a sintering process at 1200°C for 4 hours to form multicrystallite particles. The presence of a single phase in the three samples was solidly confirmed in their respective X-ray diffraction (XRD) patterns. The changes of multicrystallite particles into monocrystallite particles were obtained only after crystalline powders were irradiated ultrasonically in a high power sonicator. The processing variable during ultrasonic irradiation was limited to the duration time of irradiation and particle concentration in the exposed media. It is shown that the average sizes of BST particles at x=0; 0.3; 0.7 before ultrasonic irradiation were 353, 348, and 385 nm, respectively. These respective sizes decreased drastically to 52, 35, and 49 nm, respectively, after 12 hours of ultrasonic irradiation. These particle sizes are almost identical with that of their crystallite size. Hence, the synthesis of monocrystallite particles has been achieved. As the particle concentration of media takes effect, it is shown that an exposed media with a higher particle concentration tends to form multicrystallite particles.

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Morphology modification of micron-sized barium strontium titanate by hydrothermal growth

Gao

et al. 2014

J Mater Sci: Mater Electron

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Oxygen effects on barium strontium titanate morphology and MOS device performance

Cited by 9 publications

References 29 publications

Dielectric Properties and Structures of Zn-doped Barium Zirconate Titanate Films

Dielectric Properties and Structures of Zn-doped Barium Zirconate Titanate Films

Exploring the Effect of Particle Concentration and Irradiation Time in the Synthesis of Barium Strontium Titanate (BST) Ba(1-X)SrxTiO3 (X:0-1) Nanoparticles by High Power Ultrasonic Irradiation

Morphology modification of micron-sized barium strontium titanate by hydrothermal growth

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