Structure and dielectric properties of barium strontium titanate ferroelectric thin film prepared by DC micro-arc oxidation

Wang, Min; Li, Wenfang; Zuo, Xi; Zhu, Wuyang; Zhang, Guoge

doi:10.1007/s00339-020-03937-0

Cited by 3 publications

(2 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One can see from the above mentioned that, even 80 years after its discovery, barium titanate and its solid solutions remain the most important engineering materials. Various techniques have been developed for the growth of BST thin films, including radio frequency (RF) magnetron sputtering [ 45 ], pulsed laser ablation deposition (PLAD) [ 46 ], DC microarc oxidation [ 47 ] and chemical vapor deposition (MOCVD). In addition to vapor deposition methods, chemical solution deposition (CSD) has been employed [ 48 , 49 ].…”

Section: Introductionmentioning

confidence: 99%

Enhanced Spectroscopic Insight into Acceptor-Modified Barium Strontium Titanate Thin Films Deposited via the Sol–Gel Method

Czekaj,

Lisińska-Czekaj

2024

Materials

View full text Add to dashboard Cite

In the present paper, composite thin films of barium strontium titanate (BaxSr1−xTiO3) with an acceptor modifier (magnesium oxide—MgO) were deposited on metal substrates (stainless steel type) using the sol–gel method. The composite thin films feature BaxSr1−xTiO3 ferroelectric solid solution as the matrix and MgO linear dielectric as the reinforcement, with MgO concentrations ranging from 1 to 5 mol%. Following thermal treatment at 650 °C, the films were analyzed for their impedance response. Experimental impedance spectra were modeled using the Kohlrausch–Williams–Watts function, revealing stretching parameters (β) in the range of approximately 0.78 to 0.89 and 0.56 to 0.90 for impedance and electric modulus formalisms, respectively. Notably, films modified with 3 mol% MgO exhibited the least stretched relaxation function. Employing the electric equivalent circuit method for data analysis, the “circle fit” analysis demonstrated an increase in capacitance from 2.97 × 10−12 F to 5.78 × 10−10 F with the incorporation of 3 mol% MgO into BST-based thin films. Further analysis based on Voigt, Maxwell, and ladder circuits revealed trends in resistance and capacitance components with varying MgO contents, suggesting non-Debye-type relaxation phenomena across all tested samples.

show abstract

Section: Introductionmentioning

confidence: 99%

Enhanced Spectroscopic Insight into Acceptor-Modified Barium Strontium Titanate Thin Films Deposited via the Sol–Gel Method

Czekaj,

Lisińska-Czekaj

2024

Materials

View full text Add to dashboard Cite

show abstract

“…It has low loss tangent, high tunability, and the Curie temperature can be changed in a wide range by adjusting its Ba/Sr ratio. [1,2] However, the application of BST materials in tunable microwave devices still has technical problems such as high dielectric permittivity. In recent years, some scholars have studied some new dielectric tunable materials, such as biopolymers, [3] metal-organic framework DOI: 10.1002/crat.202200235 materials, [4] liquid crystal materials, [5] and fluoropolymers, [6] but their tunability is relatively low, and most of the mechanisms are still under study.…”

Section: Introductionmentioning

confidence: 99%

Study on the Intrinsic Correlation between Sintering Method, Ion Diffusion, and Dielectric Properties of Ba_0.5Sr_0.5TiO₃‐ZnAl₂O₄ Composite Ceramics

Zhang

Xin

Zhang

et al. 2023

Cryst. Res. Technol.

View full text Add to dashboard Cite

Ba 0.5 Sr 0.5 TiO 3 -ZnAl 2 O 4 composite ceramics of different components are prepared by solid-phase sintering and microwave sintering, respectively. The ion diffusion phenomenon between the two phases under different sintering methods and the effect of sintering method on the microstructure and dielectric properties of composite ceramics are studied. The results show that during solid-phase sintering, the generation of liquid phase can effectively enhance the ion diffusion between the two phases. Compared with solid-phase sintering, microwave sintering effectively reduces the sintering temperature of composite ceramics, and the refinement of grains enhances the ion diffusion between the two phases, resulting in an increase in the Ba/Sr ratio, and the Curie temperature moves to high temperature and increases the tunability. Under microwave sintering conditions, when the ZnAl 2 O 4 content is 50 wt%, the tunability of the composite ceramics reaches 40.03%, and it has a good Q-value.

show abstract

Experimental investigation of acrylonitrile butadiene styrene plastics plasma gasification

Mallick

Vairakannu

2023

Journal of Environmental Management

View full text Add to dashboard Cite

Structure and dielectric properties of barium strontium titanate ferroelectric thin film prepared by DC micro-arc oxidation

Cited by 3 publications

References 49 publications

Enhanced Spectroscopic Insight into Acceptor-Modified Barium Strontium Titanate Thin Films Deposited via the Sol–Gel Method

Enhanced Spectroscopic Insight into Acceptor-Modified Barium Strontium Titanate Thin Films Deposited via the Sol–Gel Method

Study on the Intrinsic Correlation between Sintering Method, Ion Diffusion, and Dielectric Properties of Ba_0.5Sr_0.5TiO₃‐ZnAl₂O₄ Composite Ceramics

Experimental investigation of acrylonitrile butadiene styrene plastics plasma gasification

Contact Info

Product

Resources

About

Structure and dielectric properties of barium strontium titanate ferroelectric thin film prepared by DC micro-arc oxidation

Cited by 3 publications

References 49 publications

Enhanced Spectroscopic Insight into Acceptor-Modified Barium Strontium Titanate Thin Films Deposited via the Sol–Gel Method

Enhanced Spectroscopic Insight into Acceptor-Modified Barium Strontium Titanate Thin Films Deposited via the Sol–Gel Method

Study on the Intrinsic Correlation between Sintering Method, Ion Diffusion, and Dielectric Properties of Ba0.5Sr0.5TiO3‐ZnAl2O4 Composite Ceramics

Experimental investigation of acrylonitrile butadiene styrene plastics plasma gasification

Contact Info

Product

Resources

About

Study on the Intrinsic Correlation between Sintering Method, Ion Diffusion, and Dielectric Properties of Ba_0.5Sr_0.5TiO₃‐ZnAl₂O₄ Composite Ceramics