(Ba, Sr)TiO3/polymer dielectric composites–progress and perspective

Gao, Feng; Zhang, Kena; Guo, Yiting; Jia-dong, XU; Szafran, M.

doi:10.1016/j.pmatsci.2021.100813

Cited by 50 publications

(18 citation statements)

References 182 publications

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“…By optimizing the surface polarity and morphology of the fillers, the compatibility of the filler and polymer matrix could be improved significantly. Gao et al 31 used the barium-strontium titanite (BST) filler as an example and reviewed the recent developments and challenges of BST/polymer functional composites. The preparation, structure, dielectric performance, application and other aspects of composites are summarized, and the issue of polymer/ceramic interface compatibility in the material is also emphasized.…”

Section: Interface Engineering Of Polymer Nanodielectricsmentioning

confidence: 99%

Perspective on interface engineering for capacitive energy storage polymer nanodielectrics

Xie

Fan

Zhang

et al. 2022

Phys. Chem. Chem. Phys.

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Section: Interface Engineering Of Polymer Nanodielectricsmentioning

confidence: 99%

Perspective on interface engineering for capacitive energy storage polymer nanodielectrics

Xie

Fan

Zhang

et al. 2022

Phys. Chem. Chem. Phys.

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“…The microstructure of a ceramic-polymer composite is influenced by the interfacial reaction between the ceramic particles and polymer taking part in the formation of the composite . To study in detail the effect of PTFE and EDTA addition on the microstructure and dielectric properties of LT-PTFE composites, we have selected the 0.7LT-0.3PTFE composite.…”

Section: Resultsmentioning

confidence: 99%

“…Moreover, steric hindrance facilitated by EDTA prevents agglomeration of LT. 43 The microstructure of a ceramic-polymer composite is influenced by the interfacial reaction between the ceramic particles and polymer taking part in the formation of the composite. 52 To study in detail the effect of PTFE and EDTA addition on the microstructure and dielectric properties of LT-PTFE composites, we have selected the 0.7LT-0.3PTFE composite. For comparison, we have taken a micrograph of the fracture surface of cold-sintered LT also [Figure 5a], which shows a plate-like structure due to the preferential growth of the layered ordered crystal structure of LT. 53 The grain size distribution of LT is given as the inset of Figure 5a.…”

Section: Resultsmentioning

confidence: 99%

Ethylenediaminetetraacetic Acid (EDTA) Assisted Single Step Densification of Li₂TiO₃/PTFE Composites at Ultralow Sintering Temperature to Realize a High-Performance Ku-Band Antenna

Narayanaiyer

Mohanan

Nazeemabeevi

et al. 2022

ACS Appl. Electron. Mater.

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In the last few decades, extensive research has been focused on the ever-increasing demand for energy-efficient materials and technologies in consumer electronics. The low-weight, low-cost, environmentally safe Li-based ceramics are widely investigated as potential materials for Li-ion batteries and low-temperature cofired ceramics (LTCC). In the present work, we combine high volume fractions of Li2TiO3 (LT) ceramic with incredibly versatile polytetrafluoroethylene (PTFE) to synthesize thermally stable, low-loss dielectrics at ultralow temperatures (<150 °C) in a single step without any additional transient liquid phase in a very short time, and the effect of different wt % of ethylenediaminetetraacetic acid (EDTA), which is a chelating agent, on the densification, microstructure, thermal, and broadband dielectric properties of these composites has been studied. X-ray photoelectron and FTIR spectroscopic analyses were used to explain the densification mechanism in these composites. The presence of the OH– ion on the surface of LT and manipulation of the ceramic-polymer interphase by EDTA are significant in the densification of LT-PTFE composites. A cylindrical prototype dielectric resonator antenna (CDRA) was designed, simulated, and fabricated with the 0.7LT-0.3PTFE-5EDTA composite having excellent thermal and dielectric properties, and antenna properties were experimentally verified. The return loss, input impedance, and radiation pattern of the CDRA were examined, and the experimental results match reasonably well with simulated results. This study shows that the 0.7LT-0.3PTFE-5EDTA composite is a potential candidate for the fabrication of an economical, low-loss, lightweight, easy-to-fabricate, wide bandwidth CDRA for telecommunication applications in the Ku-band. Further, it is possible to achieve enhanced bandwidth and gain, by varying the compositions of these composites.

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“…Therefore, it is imperative to develop new ceramic fillers to improve the properties of ceramic-polymer composites, for which researchers have shown extensive interest. 63…”

Section: Dielectric Polymer Composites With Ceramic Nanofillersmentioning

confidence: 99%

Preparation and application of dielectric polymers with high permittivity and low energy loss: A mini review

Qiu

Sha

et al. 2022

J of Applied Polymer Sci

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This article reviews the preparation strategies of dielectric polymers with high permittivity and low energy loss, as well as their applications in the field of energy storage and intelligent sensors. We discuss the dependence of dielectric properties of polymer composites on different types of dielectric polarizations, including interfacial polarization, orientational polarization, ionic polarization, and electronic polarization, as well as the improvement of dielectric properties by synergetic effects of multiple polarizations. Due to the difficulties of achieving both high dielectric polarization (hence high permittivity) and low dielectric loss, we focus on the energy loss mechanism of different polarization types and issues in the preparation process. We also discuss current applications and future prospects of dielectric polymers in the field.

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(Ba, Sr)TiO3/polymer dielectric composites–progress and perspective

Cited by 50 publications

References 182 publications

Perspective on interface engineering for capacitive energy storage polymer nanodielectrics

Perspective on interface engineering for capacitive energy storage polymer nanodielectrics

Ethylenediaminetetraacetic Acid (EDTA) Assisted Single Step Densification of Li₂TiO₃/PTFE Composites at Ultralow Sintering Temperature to Realize a High-Performance Ku-Band Antenna

Preparation and application of dielectric polymers with high permittivity and low energy loss: A mini review

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(Ba, Sr)TiO3/polymer dielectric composites–progress and perspective

Cited by 50 publications

References 182 publications

Perspective on interface engineering for capacitive energy storage polymer nanodielectrics

Perspective on interface engineering for capacitive energy storage polymer nanodielectrics

Ethylenediaminetetraacetic Acid (EDTA) Assisted Single Step Densification of Li2TiO3/PTFE Composites at Ultralow Sintering Temperature to Realize a High-Performance Ku-Band Antenna

Preparation and application of dielectric polymers with high permittivity and low energy loss: A mini review

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Ethylenediaminetetraacetic Acid (EDTA) Assisted Single Step Densification of Li₂TiO₃/PTFE Composites at Ultralow Sintering Temperature to Realize a High-Performance Ku-Band Antenna