Journal ArticleDOI
A novel all-organic DIPAB/PVDF composite film with high dielectric permittivity
Wenlong Yang,Haidong Li,Jiaqi Lin,Gaoru Chen,Yu Wang,Li Wang,Haowei Lu,Liang-Yu Chen,Qingquan Lei +8 more
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TLDR
In this article, a novel all-organic composite comprising polyvinylidene fluoride (PVDF) and diisopropylammonium bromide (DIPAB) crystal particles with significant dielectric properties has been synthesized via coating method.Abstract:
A novel all-organic composite comprising polyvinylidene fluoride (PVDF) and diisopropylammonium bromide (DIPAB) crystal particles (0–20 mass%) with significant dielectric properties has been synthesized via coating method. The DIPAB crystal nano-particles were prepared in the PVDF matrix by in situ growth method, which were found effective in transforming structure and enhancing the dielectric properties of the composites. X-ray diffraction pattern and Fourier transform infrared spectroscopy confirmed that the DIPAB in situ particles can improve the content of the electroactive β phase nucleation in PVDF matrix, whereas the PVDF matrix could induce the (00l) preferred orientation of the DIPAB nano-crystal. And the dielectric performance of the DIPAB/PVDF composite was significant influenced by the enhanced electroactive β phase and (00l) textured DIPAB. Relative dielectric constants as high as 94 was obtained at 40 Hz with 5 mass% DIPAB filler, which is 11-fold higher than that of the pure PVDF matrix (~8.5). The breakdown strength decreased as the mass fraction of DIPAB increased but still stayed more than 38.9 kV/mm.read more
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Dielectric, mechanical and thermal properties of all-organic PI/PSF composite films by in situ polymerization
TL;DR: In this paper, all-organic polyimide/polysulfone composite films with different amounts of PSF (PI/PSF-X) were prepared by in situ polymerization followed by film casting and thermal treatment.
Journal ArticleDOI
A review on polyvinylidene fluoride polymer based nanocomposites for energy storage applications
TL;DR: In this article , the electrical properties of composite films have been explored including dielectric permittivity, losses, energy density, and efficiency, as well as finite element analysis.
Journal ArticleDOI
Metacomposites: functional design via titanium nitride/nickel(II) oxide composites towards tailorable negative dielectric properties at radio-frequency range
Yunpeng Qu,Yuyan Li,Ciqun Xu,Guohua Fan,Peitao Xie,Zhongyang Wang,Yao Liu,Yulin Wu,Runhua Fan +8 more
TL;DR: In this paper, the negative dielectric properties of percolating metacomposites were investigated and the effect of negative permittivity on the electrical properties were investigated.
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Robust flower-like ZnO assembled β-PVDF/BT hybrid nanocomposite: Excellent energy harvester
TL;DR: In this article, the ZnO particle and flower-like morphology assemble semicrystalline β phase PVDF/BT nanocomposite, successfully synthesized by spin coating method and characterized by XRD, SEM, EDS and FTIR techniques.
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Intensifying energy density, dielectric and mechanical properties of electroactive β-PVDF/f-BTO nanocomposites
TL;DR: In this paper, the enhancement of energy density and consequently energy harvesting efficiency of PVDF/f-BaTiO3 nanocomposite was reported, where the energy storage density of composite with modified structure was largely increased and was found to be 0.242
References
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Journal ArticleDOI
Flexible Nanodielectric Materials with High Permittivity for Power Energy Storage
TL;DR: This review first outlines the crucial issues in the nanodielectric field and then focuses on recent remarkable research developments in the fabrication of FNDMs with special constitutents, molecular structures, and microstructures.
Journal ArticleDOI
An all-organic composite actuator material with a high dielectric constant
TL;DR: A new class of all-organic field-type EAP composites is reported, which can exhibit high elastic energy densities induced by an electric field of only 13 V µm-1, and could find applications as artificial muscles, ‘smart skins’ for drag reduction, and in microfluidic systems for drug delivery.
Journal ArticleDOI
Origin of apparent colossal dielectric constants
Peter Lunkenheimer,Vid Bobnar,Vid Bobnar,A. V. Pronin,A. V. Pronin,A. I. Ritus,A. A. Volkov,Alois Loidl +7 more
TL;DR: In this article, it was shown that the largest intrinsic dielectric constant observed so far in nonferroelectric materials is of order 10 − 2 − 2, which can be explained by depletion layers at the interface between sample and contacts or at grain boundaries.
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Highly flexible MoS2 thin-film transistors with ion gel dielectrics.
TL;DR: The superior electrical performance and excellent pliability of MoS(2) films make them suitable for use in large-area flexible electronics.
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Correction: Corrigendum: Cancer cells that survive radiation therapy acquire HIF-1 activity and translocate toward tumour blood vessels
Hiroshi Harada,Masahiro Inoue,Satoshi Itasaka,Kiichi Hirota,Akiyo Morinibu,Kazumi Shinomiya,Lihua Zeng,Guangfei Ou,Yuxi Zhu,Michio Yoshimura,W. Gillies McKenna,Ruth J. Muschel,Masahiro Hiraoka +12 more
TL;DR: Images corresponding to a time point of 16 h were inadvertently used to represent immunohistochemical labelling 3 days after tamoxifen injection and are included in the revised figure below.