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Relevant bibliographies by topics / Dielectric polymers

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Journal articles

Academic literature on the topic 'Dielectric polymers'

Author: Grafiati

Published: 6 September 2023

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Journal articles on the topic "Dielectric polymers"

1

Dou, Lvye, Yuan-Hua Lin, and Ce-Wen Nan. "An Overview of Linear Dielectric Polymers and Their Nanocomposites for Energy Storage." Molecules 26, no. 20 (2021): 6148. http://dx.doi.org/10.3390/molecules26206148.

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As one of the most important energy storage devices, dielectric capacitors have attracted increasing attention because of their ultrahigh power density, which allows them to play a critical role in many high-power electrical systems. To date, four typical dielectric materials have been widely studied, including ferroelectrics, relaxor ferroelectrics, anti-ferroelectrics, and linear dielectrics. Among these materials, linear dielectric polymers are attractive due to their significant advantages in breakdown strength and efficiency. However, the practical application of linear dielectrics is usu

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2

Choi, Junhwan, and Hocheon Yoo. "Combination of Polymer Gate Dielectric and Two-Dimensional Semiconductor for Emerging Field-Effect Transistors." Polymers 15, no. 6 (2023): 1395. http://dx.doi.org/10.3390/polym15061395.

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Two-dimensional (2D) materials are considered attractive semiconducting layers for emerging field-effect transistors owing to their unique electronic and optoelectronic properties. Polymers have been utilized in combination with 2D semiconductors as gate dielectric layers in field-effect transistors (FETs). Despite their distinctive advantages, the applicability of polymer gate dielectric materials for 2D semiconductor FETs has rarely been discussed in a comprehensive manner. Therefore, this paper reviews recent progress relating to 2D semiconductor FETs based on a wide range of polymeric gate

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3

Liu, Di-Fan, Qi-Kun Feng, Yong-Xin Zhang, Shao-Long Zhong, and Zhi-Min Dang. "Prediction of high-temperature polymer dielectrics using a Bayesian molecular design model." Journal of Applied Physics 132, no. 1 (2022): 014901. http://dx.doi.org/10.1063/5.0094746.

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Machine learning has shown its great potential in the accelerated discovery of advanced materials in the field of computational molecular design. High-temperature polymer dielectrics are urgently required with the emerging applications of energy-storage dielectric film capacitors under high-temperature conditions. Here, we demonstrate the successful prediction of polymers with a high dielectric constant ( ɛ) and high glass transition temperature ( Tg) using a Bayesian molecular design model. The model is trained on a joint data set containing 382 computed ɛ values using density functional pert

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4

Yang, Zhijie, Dong Yue, Yuanhang Yao, et al. "Energy Storage Application of All-Organic Polymer Dielectrics: A Review." Polymers 14, no. 6 (2022): 1160. http://dx.doi.org/10.3390/polym14061160.

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With the wide application of energy storage equipment in modern electronic and electrical systems, developing polymer-based dielectric capacitors with high-power density and rapid charge and discharge capabilities has become important. However, there are significant challenges in synergistic optimization of conventional polymer-based composites, specifically in terms of their breakdown and dielectric properties. As the basis of dielectrics, all-organic polymers have become a research hotspot in recent years, showing broad development prospects in the fields of dielectric and energy storage. Th

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5

Katunin, Andrzej, and Katarzyna Krukiewicz. "Electrical percolation in composites of conducting polymers and dielectrics." Journal of Polymer Engineering 35, no. 8 (2015): 731–41. http://dx.doi.org/10.1515/polyeng-2014-0206.

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Abstract This article deals with the electrical conductivity of a composite of two polymers, one of which is a conducting polymer, whereas the second is a dielectric. The problem was formulated within the framework of electrical percolation, i.e., the percolation thresholds, which allow for a high electrical conductivity, is under investigation. For this purpose, a numerical model was developed, and its parameters were analyzed and discussed. Based on the determined thresholds, it was possible to evaluate the weight ratios of the conducting-dielectric polymers in a composite. The proposed appr

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6

Li, Rui, Jian Zhong Pei, Yan Wei Li, Xin Shi, and Qun Le Du. "Preparation, Morphology and Dielectric Properties of Polyamide-6/Poly(Vinylidene Fluoride) Blends." Advanced Materials Research 496 (March 2012): 263–67. http://dx.doi.org/10.4028/www.scientific.net/amr.496.263.

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A novel all-polymeric material with high dielectric constant (k) has been developed by blending poly (vinylidene fluoride) (PVDF) with polyamide-6 (PA6). The dependence of the dielectric properties on frequency and polymer volume fraction was investigated. When the volume fraction of PA6 is 20%, the dielectric property is better than others. The SEM investigations suggest that the enhanced dielectric behavior originates from significant interfacial interactions of polymer-polymer. The XRD demonstrate that the PA6 and PVDF affect the crystalline behavior of each component. Furthermore, the stab

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7

Закревский, В. А., В. А. Пахотин та Н. Т. Сударь. "Долговечность полимеров в переменном электрическом поле". Журнал технической физики 90, № 2 (2020): 251. http://dx.doi.org/10.21883/jtf.2020.02.48818.224-19.

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An explanation of the difference in the electrical properties of polymers in the DC and AC electric fields is proposed. Energy release during recombination of electrons and holes injected into a polymer dielectric is considered as a factor accelerating the processes of electric aging of these dielectrics in an AC field. It is shown that nonradiative relaxation of electron excited states causes breaks of bonds in macromolecules and formation of free radicals. Due to the lower ionization energy of free radicals (compared to the original molecules), the rate of charge accumulation in the polymer

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8

BIJWE, JAYASHREE, and NEELAM PHOUGAT. "Dielectric Properties of Iron Phthalocyanine Compounds." Journal of Porphyrins and Phthalocyanines 02, no. 03 (1998): 223–30. http://dx.doi.org/10.1002/(sici)1099-1409(199805/06)2:3<223::aid-jpp69>3.0.co;2-a.

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Monomeric and polymeric iron phthalocyanine compounds were synthesized and their dielectric properties were measured in the frequency range from 100 Hz to 10 MHz between 25 and 200 °C. The dielectric constant and dielectric loss showed strong frequency and temperature dependences. Interestingly, large dielectric constants were observed around 100 °C for both monomers and polymers. A dielectric constant as high as 5000 at 110 Hz was observed for the iron phthalocyanine polymer. The origin of the large dielectric constant in metallophthalocyanines is discussed.

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9

Ali, Amjad, Mirza Nadeem Ahmad, Tajamal Hussain, et al. "Materials Innovations in 2D-filler Reinforced Dielectric Polymer Composites." Materials Innovations 02, no. 02 (2022): 47–66. http://dx.doi.org/10.54738/mi.2022.2202.

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Polymer dielectric possess advantages of mechanical flexibility, low temperature processing, and cost. However, for practical applications dielectric constant of polymers is not high enough. To raise the dielectric constant, polymers are often composited with fillers of various morphologies (one-dimensional, two-dimensional, three-dimensional) and types (inorganic, organic, carbon, conductive, non-conductive). Recently discovered two-dimensional (2D) materials including graphene, transition metal dichalcogenides, MXenes, ferroelectric ceramics, etc. have been discovered. These materials have e

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10

Li, He, Yao Zhou, Yang Liu, Li Li, Yi Liu, and Qing Wang. "Dielectric polymers for high-temperature capacitive energy storage." Chemical Society Reviews 50, no. 11 (2021): 6369–400. http://dx.doi.org/10.1039/d0cs00765j.

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The growing demand for advanced electronics requires dielectrics operating at high temperatures. The development of high-temperature dielectric polymers is reviewed from the perspective of structure design, dielectric and capacitive performance.

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