Results 101 to 110 of about 284,309 (382)

High energy efficiency nanodielectrics with relaxor ferroelectric polymer and antiferroelectric (Pb0.97La0.02) (Zr0.63Sn0.3Ti0.07)O3 ceramics

open access: yesIET Nanodielectrics, 2021
Dielectric materials with high‐energy‐density and low‐energy‐loss have received lot of attention in terms of renewable energy storage and application. PVDF‐based polymer/ceramics composite dielectrics are considered as one of the most promising materials
Jian Wang   +5 more
doaj   +1 more source

High Dielectric Permittivity in AFe$_{1 / 2}$B$_{1 / 2}$O$_{3}$ Nonferroelectric Perovskite Ceramics (A - Ba, Sr, Ca; B - Nb, Ta, Sb)

open access: yes, 2002
AFe$_{1 / 2}$B$_{1 / 2}$O$_{3}$(A- Ba, Sr, Ca; B-Nb, Ta, Sb) ceramics were synthesized and temperature dependencies of the dielectric permittivity were measured at different frequencies.
A. S. Bogatin   +19 more
core   +1 more source

Enhancement of Dielectric Permittivity of Ti3C2Tx MXene/Polymer Composites by Controlling Flake Size and Surface Termination.

open access: yesACS Applied Materials and Interfaces, 2019
We report a strong effect of the MXene flake size and surface termination on the dielectric permittivity of MXene polymer composites. Specifically, poly(vinylidene fluoride-trifluoro-ethylene-chlorofluoroehylene) or P(VDF-TrFE-CFE) polymer embedded with ...
Shaobo Tu   +6 more
semanticscholar   +1 more source

Integrated Metallo‐Dielectric 3D Hotspots From High Refractive Index Nanodiamond‐Plasmonic Gold Cryosoret Nano‐Assemblies for Photonic Crystal Enhanced Fluorescence

open access: yesAdvanced Functional Materials, EarlyView.
This work presents a novel sensing platform using metallo‐dielectric cryosoret nano‐assemblies and lossless photonic crystals to overcome limitations of conventional plasmonic biosensors. The hybrid system enhances both electric and magnetic field interactions, enabling amplified fluorescence, ultralow detection limits, and prism‐free, objective‐free ...
Seemesh Bhaskar   +5 more
wiley   +1 more source

SMaRT Stacking: A Methodology to Produce Optimally Layered EMI Shields with Maximal Green Index Using Fused Deposition Modeling

open access: yesAdvanced Functional Materials, EarlyView.
Electromagnetic interference (EMI) shields consisting of polylactic acid (PLA) in layers with different concentrations of multiwalled carbon nanotubes (MWCNT) are produced using additive manufacturing. The permittivity function of layers with different filler concentrations is learned using data of homogeneous and randomly ordered shields.
Stijn De Smedt   +5 more
wiley   +1 more source

Reference Breast Phantoms for Low-Cost Microwave Imaging

open access: yesTehnički Glasnik, 2020
Microwave imaging provides an alternative method for breast cancer screening and the diagnosis of cerebrovascular accidents. Before a surgical operation, the performance of microwave imaging systems should be evaluated on anatomically detailed ...
Emine Avşar Aydin   +1 more
doaj  

Dielectric response of a polar fluid trapped in a spherical nanocavity

open access: yes, 2006
We present extensive Molecular Dynamics simulation results for the structure, static and dynamical response of a droplet of 1000 soft spheres carrying extended dipoles and confined to spherical cavities of radii $R=2.5$, 3, and 4 nm embedded in a ...
Bagchi B.   +7 more
core   +1 more source

Design and Applications of Multi‐Frequency Programmable Metamaterials for Adaptive Stealth

open access: yesAdvanced Functional Materials, EarlyView.
This article provides a comprehensive overview of metamaterials, including their fundamental principles, properties, synthesis techniques, and applications in stealth, as well as their challenges and future prospects. It covers topics that are more advanced than those typically discussed in existing review articles, while still being closely connected ...
Jonathan Tersur Orasugh   +4 more
wiley   +1 more source

Temperature evolution of dielectric characteristics of PVDF and P(VDF-TrFE) films produced by 4D printing

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов
In this work, films of polyvinylidene fluoride, copolymer of vinylidene fluoride and trifluoroethylene have been studied. The samples were made by direct ink writing technology. Some of the produced films were polarized in the corona discharge field. The
A.V. Solnyshkin   +3 more
doaj   +1 more source

The low temperature corrections to the Casimir force between a sphere and a plane

open access: yes, 2010
We calculate the low temperature corrections to the free energy for a sphere in front of a plane. First, the scalar field obeying Dirichet or Neumann boundary conditions is considered.
G. L. Klimchitskaya   +2 more
core   +1 more source

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