Current status of polymer nanocomposite dielectrics for high-temperature applications

Hassan, Yusuf Abdullahi; Hu, Hailong

doi:10.1016/j.compositesa.2020.106064

Cited by 74 publications

(14 citation statements)

References 110 publications

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“…[ 223,224 ] •Recently, it has been reported that the energy storage performance of HfO 2 –ZrO 2 electrostatic capacitors with dielectric interlayer is thermally stable up to ≈440 K. [ 227 ] It is important to achieve strong energy storage performance in the range of 400−500 K. In this manner, it can be possible to meet the requirements of oil/gas industries (448−523 K), power transmission (423−523 K), automotive (423−473 K), and aerospace (453−523 K). [ 226 ] The Curie temperature of fluorite‐structured FE materials is up to 450 °C. [ 227 ] So, there is a strong possibility of achieving these higher operational temperature targets.…”

Section: Outlook and Perspectivesmentioning

confidence: 99%

Fluorite‐Structured Ferroelectric and Antiferroelectric Materials: A Gateway of Miniaturized Electronic Devices

Ali

Lehninger

et al. 2022

Adv Funct Materials

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Ferroelectric (FE) and antiferroelectric (AFE) materials are used for several memory-related and energy-related applications. Perovskite materials (e.g., bulk ceramics) remain the most common materials for many applications. However, due to large deposition thickness, these materials are not appropriate for future miniaturized devices. In 2011, FE and AFE properties were reported in Si-doped HfO 2 thin films. HfO 2 -based FE and AFE materials have several advantages over conventional materials, such as ultrathin deposition thickness (in range of nanometers), compatibility with existing Si semiconductor technology, and suitability for the integration within 3-D nanostructures. Therefore, fluorite-structured materials can be appropriate for miniaturized devices. These fluorite-structured materials are extensively studied for memory and energy-related applications. The first review on this topic was published after four years of discovering the FE and AFE properties in these materials. From the past decade, a lot of research has been reported about the detailed mechanism and application of these materials. This review insightfully discusses the progress in the research of fluorite-structured materials and critically discusses some potential applications. Here some challenges are also discussed, new knowledge is extracted, and promising future research directions of these materials are suggested.

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Section: Outlook and Perspectivesmentioning

confidence: 99%

Fluorite‐Structured Ferroelectric and Antiferroelectric Materials: A Gateway of Miniaturized Electronic Devices

Ali

Lehninger

et al. 2022

Adv Funct Materials

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“…[ 41,46,63 ] For example, P(VDF‐TrFE‐CFE)/BST nanocomposites can achieve a high Δ S (210 J K −1 kg −1 ) and Δ T (50.5 K) under 250 MV m −1 at 303 K. [ 63 ] Although polymer‐based films show good ECEs, the cooling performance of these films is limited due to the low operating temperature (typically < 430 K). [ 114 ]…”

Section: Polymer‐based Materialsmentioning

confidence: 99%

Novel Fluorite‐Structured Materials for Solid‐State Refrigeration

Ali

Abbas

et al. 2022

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Refrigeration based on the electrocaloric effect can offer many advantages over conventional cooling technologies in terms of efficiency, size, weight, and power source. The discovery of ferroelectric and antiferroelectric properties in fluorite‐based materials in 2011 has led to diverse applications related to memory (e.g., ferroelectric tunnel junctions, nonvolatile memory, and field‐effect transistors) and energy fields (e.g., energy storage and harvesting, electrocaloric refrigeration, and infrared detection). Fluorite‐based materials exhibit several properties not shared by most conventional materials (such as in terms of compatibility with complementary metal‐oxide semiconductors and 3D nanostructures, deposition thickness at the nanometer scale, and simple composition). Here, the electrocaloric refrigeration properties of fluorite‐based ferroelectric/antiferroelectric materials are reviewed by focusing on the advantages of ZrO2‐ and HfO2‐based materials (e.g., relative to conventional perovskite‐ and polymer‐based counterparts). Finally, the recent progress made in this research field are also discussed along with its future perspectives.

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“…Particularly, for polyimide (PI), which is broadly used in the fields of electronic packaging and automotive applications, a degradation of its electrical resistivity, dielectric properties, and/or failure field [3][4][5] is observed at high temperature. According to the literature, polymer-nanocomposites (NCs) appear as the best candidates to improve the polymer dielectric properties at both ambient [6,7] and high temperature [1,8]. PI-based NCs, with a small amount of nanofillers, exhibit improved mechanical, thermal [9][10][11], and dielectric properties at high temperature, as the limitation of space charge accumulation [12,13], the improvement of breakdown strength [12,14,15] and/or energy density [3,15,16] compared to the neat PI.…”

Section: Introductionmentioning

confidence: 99%

Temperature Influence on PI/Si3N4 Nanocomposite Dielectric Properties: A Multiscale Approach

et al. 2021

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The interphase area appears to have a great impact on nanocomposite (NC) dielectric properties. However, the underlying mechanisms are still poorly understood, mainly because the interphase properties remain unknown. This is even more true if the temperature increases. In this study, a multiscale characterization of polyimide/silicon nitride (PI/Si3N4) NC dielectric properties is performed at various temperatures. Using a nanomechanical characterization approach, the interphase width was estimated to be 30 ± 2 nm and 42 ± 3 nm for untreated and silane-treated nanoparticles, respectively. At room temperature, the interphase dielectric permittivity is lower than that of the matrix. It increases with the temperature, and at 150 °C, the interphase and matrix permittivities reach the same value. At the macroscale, an improvement of the dielectric breakdown is observed at high temperature (by a factor of 2 at 300 °C) for NC compared to neat PI. The comparison between nano- and macro-scale measurements leads to the understanding of a strong correlation between interphase properties and NC ones. Indeed, the NC macroscopic dielectric permittivity is well reproduced from nanoscale permittivity results using mixing laws. Finally, a strong correlation between the interphase dielectric permittivity and NC breakdown strength is observed.

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Current status of polymer nanocomposite dielectrics for high-temperature applications

Cited by 74 publications

References 110 publications

Fluorite‐Structured Ferroelectric and Antiferroelectric Materials: A Gateway of Miniaturized Electronic Devices

Fluorite‐Structured Ferroelectric and Antiferroelectric Materials: A Gateway of Miniaturized Electronic Devices

Novel Fluorite‐Structured Materials for Solid‐State Refrigeration

Temperature Influence on PI/Si3N4 Nanocomposite Dielectric Properties: A Multiscale Approach

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