Thickness dependence of microwave dielectric tunability in Ba0·5Sr0·5TiO3 thin films deposited by pulsed laser deposition

Goud, J. Pundareekam; Kumar, Ajeet; Alkathy, Mahmoud S.; Sandeep, K.; Ts, Akhil Raman; Sahoo, Bibhudatta; Ryu, Jungho; Raju, K. S.

doi:10.1016/j.ceramint.2022.09.095

Cited by 7 publications

(2 citation statements)

References 37 publications

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“…In general, the dielectric tunability of BaTiO 3 films can be modulated by doping them with Sr and Sn elements, transitioning from the normal ferroelectric state to the relaxed ferroelectric state. [1][2][3][4][5][6][7] However, it is difficult to achieve both high dielectric tunability and low loss for the Ba 1−x Sr x TiO 3 ferroelectric film using linear dielectrics. 8 Growing the multilayer is an effective method for enhancing dielectric properties.…”

Section: Introductionmentioning

confidence: 99%

Ultra-high resistive switching current ratio and improved ferroelectricity and dielectric tunability performance in a BaTiO₃/La_0.7Sr_0.3MnO₃heterostructure by inserting a SrCoO_2.5layer

Zhang,

Chen,

Cao

et al. 2024

Nanoscale

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Section: Introductionmentioning

confidence: 99%

Ultra-high resistive switching current ratio and improved ferroelectricity and dielectric tunability performance in a BaTiO₃/La_0.7Sr_0.3MnO₃heterostructure by inserting a SrCoO_2.5layer

Zhang,

Chen,

Cao

et al. 2024

Nanoscale

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“…Moreover, BST has interesting properties, such as high acoustic velocity and a high electromechanical coupling coefficient, which are essential for acoustic devices. For instance, a thin film of BST has been used in the fabrication of bulk acoustic wave (BAW) resonators in the design of filters and low noise oscillators with high quality factors and better coupling coefficients [14,15]. Gevorgian et al demonstrated the use of BST thin film as piezoelectric material in the fabrication of solid mounted tunable resonators [15].…”

Section: Introductionmentioning

confidence: 99%

Indium-Doped SnO2 Based Surface Acoustic Wave Gas Sensor with Ba0.6Sr0.4TiO3 Film

Alemayehu,

Annam,

Shin

et al. 2024

Crystals

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SnO2-based gas sensors have been widely synthesized and used for the detection of various hazardous gases. However, the use of doped SnO2 in sensing applications has recently attracted increased interest due to the formation of a synergistic effect between the dopant and the host. Moreover, in the case of a surface acoustic wave (SAW) sensor, the piezoelectric material used in the fabrication of the sensor plays a crucial role in defining the response of the SAW sensor. As a ferroelectric material, barium strontium titanate (Ba0.6Sr0.4TiO3) has recently been studied due to its intriguing dielectric and electromechanical properties. Its high acoustic velocity and coupling coefficient make it a promising candidate for the development of acoustic devices; however, its use as a piezoelectric material in SAW sensors is still in its infancy. In this paper, we present the design, fabrication and validation of an indium doped SnO2-based SAW gas sensor on Ba0.6Sr0.4TiO3 thin film for room temperature (RT) applications. Pulsed laser deposition was used to deposit thin films of Ba0.6Sr0.4TiO3 and indium-doped SnO2. Different characterization techniques were employed to analyze the morphology and crystallization of the films. The performance of the fabricated sensor was validated by exposing it to different concentrations of ethanol and then analyzing the recorded frequency shift. The sensor exhibited fast response (39 s) and recovery (50 s) times with a sensitivity of 9.9 MHz/Δ. Moreover, the sensor had good linear response and reproducibility. The fabricated indium-doped SnO2-based SAW gas sensor could be suitable for practical room temperature applications.

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Effects of multiple sintering additives on crystal structure, morphology and tunable mechanisms of BCZT ceramics

Yang,

Zhao,

Shi

et al. 2024

J Mater Sci

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Thickness dependence of microwave dielectric tunability in Ba0·5Sr0·5TiO3 thin films deposited by pulsed laser deposition

Cited by 7 publications

References 37 publications

Ultra-high resistive switching current ratio and improved ferroelectricity and dielectric tunability performance in a BaTiO₃/La_0.7Sr_0.3MnO₃heterostructure by inserting a SrCoO_2.5layer

Ultra-high resistive switching current ratio and improved ferroelectricity and dielectric tunability performance in a BaTiO₃/La_0.7Sr_0.3MnO₃heterostructure by inserting a SrCoO_2.5layer

Indium-Doped SnO2 Based Surface Acoustic Wave Gas Sensor with Ba0.6Sr0.4TiO3 Film

Effects of multiple sintering additives on crystal structure, morphology and tunable mechanisms of BCZT ceramics

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Thickness dependence of microwave dielectric tunability in Ba0·5Sr0·5TiO3 thin films deposited by pulsed laser deposition

Cited by 7 publications

References 37 publications

Ultra-high resistive switching current ratio and improved ferroelectricity and dielectric tunability performance in a BaTiO3/La0.7Sr0.3MnO3heterostructure by inserting a SrCoO2.5layer

Ultra-high resistive switching current ratio and improved ferroelectricity and dielectric tunability performance in a BaTiO3/La0.7Sr0.3MnO3heterostructure by inserting a SrCoO2.5layer

Indium-Doped SnO2 Based Surface Acoustic Wave Gas Sensor with Ba0.6Sr0.4TiO3 Film

Effects of multiple sintering additives on crystal structure, morphology and tunable mechanisms of BCZT ceramics

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Ultra-high resistive switching current ratio and improved ferroelectricity and dielectric tunability performance in a BaTiO₃/La_0.7Sr_0.3MnO₃heterostructure by inserting a SrCoO_2.5layer

Ultra-high resistive switching current ratio and improved ferroelectricity and dielectric tunability performance in a BaTiO₃/La_0.7Sr_0.3MnO₃heterostructure by inserting a SrCoO_2.5layer