High Permittivity CaCu3Ti4O12 Particle‐Induced Internal Polarization Amplification for High Performance Triboelectric Nanogenerators
Sign Up to like & getrecommendations! Published in 2020 at "Advanced Energy Materials"
DOI: 10.1002/aenm.201903524
Abstract: Here, a composite material based on the butylated melamine formaldehyde (BMF) and high permittivity CaCu3Ti4O12 (CCTO) particles as a triboelectric dielectric material for stable high output triboelectric nanogenerators (TENGs) is proposed. CCTO particles, which have… read more here.
Keywords: internal polarization; triboelectric nanogenerators; permittivity; high permittivity ... See more keywords
Aggregation‐Dependent Dielectric Permittivity in 2D Molecular Crystals
Sign Up to like & getrecommendations! Published in 2022 at "Small Methods"
DOI: 10.1002/smtd.202101198
Abstract: The functionality of 2D molecular crystal‐based devices crucially depends on their intrinsic properties, such as molecular energy levels, light absorption efficiency, and dielectric permittivity, which are highly sensitive to molecular aggregation. Here, it is demonstrated… read more here.
Keywords: dielectric permittivity; aggregation; permittivity; aggregation dependent ... See more keywords
GHz permittivity of carbon black and polyaniline with styrene–butadiene–styrene composites
Sign Up to like & getrecommendations! Published in 2018 at "Polymer Bulletin"
DOI: 10.1007/s00289-018-2398-7
Abstract: The present work was focused on microwave absorption and electrical properties of conducting carbon black-filled/styrene–butadiene–styrene and polyaniline-filled/styrene–butadiene–styrene prepared in a mechanical mixer. Composites containing 1.0, 4.0 and 10 wt% of carbon black were studied. Conducting composites… read more here.
Keywords: permittivity; styrene; styrene butadiene; carbon black ... See more keywords
Investigation of triplex CaAl2ZnO5 nanocrystals on electrical permittivity, optical and structural characteristics of PVA nanocomposite films
Sign Up to like & getrecommendations! Published in 2019 at "Polymer Bulletin"
DOI: 10.1007/s00289-019-03069-3
Abstract: Nanocomposite (NC) films of polyvinyl alcohol (PVA)/calcium aluminum-doped zincate (CaAl 2 ZnO 5 ) have been fabricated with varying amounts, namely 2, 4, 6 and 8 wt% of CaAl 2 ZnO 5 nanoparticles (NPs) by solution… read more here.
Keywords: permittivity; nanocomposite films; spectroscopy; caal zno ... See more keywords
High-permittivity dielectric edge termination for vertical high voltage devices
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Computational Electronics"
DOI: 10.1007/s10825-020-01553-y
Abstract: A novel edge-termination concept using extreme permittivity dielectrics is proposed to effectively manage electric fields in vertical power-devices. This method is expected to be particularly significant for wide band-gap semiconductors, where field termination is a… read more here.
Keywords: high permittivity; permittivity dielectric; termination; edge termination ... See more keywords
Precise measurements of the permittivity of microwave absorbing materials at microwave frequencies
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Materials Science: Materials in Electronics"
DOI: 10.1007/s10854-020-03535-z
Abstract: With the development of electronic technology, microwave absorbing materials play an important role in aerospace, electromagnetic pollution, and other fields. However, the accurate measurement of dielectric properties at microwave frequencies has always been a difficult… read more here.
Keywords: microwave absorbing; permittivity; method; accurate measurement ... See more keywords
A General Strategy to Achieve Colossal Permittivity and Low Dielectric Loss Through Constructing Insulator/Semiconductor/Insulator Multilayer Structures
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Low Temperature Physics"
DOI: 10.1007/s10909-018-1985-1
Abstract: In this work, we propose a route to realize high-performance colossal permittivity (CP) by creating multilayer structures of insulator/semiconductor/insulator. To prove the new concept, we made heavily reduced rutile TiO2 via annealing route in Ar/H2… read more here.
Keywords: permittivity; semiconductor; dielectric loss; insulator ... See more keywords
Permittivity enhancement of transparent poly(vinylidene fluoride) nanocomposite films by loading titania-coated barium titanate nanoparticles
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Nanoparticle Research"
DOI: 10.1007/s11051-018-4289-0
Abstract: AbstractBarium titanate (BT) nanoparticles are coated by titania and modified by fluoroalkylsilane. The BT nanoparticles are incorporated into polyvinylidene fluoride (PVDF) films to obtain highly dielectric and transparent nanocomposite films at low filler loadings. Incorporation… read more here.
Keywords: permittivity; titanate nanoparticles; titania; transparent ... See more keywords
Extracting Complex Permittivity of Materials by Gaussian Process Regression Using the Transmission Parameter at Sub-THz
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Electronic Materials"
DOI: 10.1007/s11664-019-07716-3
Abstract: The interaction between electromagnetic waves and materials is related to dielectric properties of materials, which have been used for technological applications in many fields, like polymers. Extracting complex permittivity values can be used to define… read more here.
Keywords: process regression; extracting complex; permittivity; permittivity materials ... See more keywords
A New Numerical-Homogenization Method to Predict the Effective Permittivity of Composite Materials
Sign Up to like & getrecommendations! Published in 2020 at "Integrating Materials and Manufacturing Innovation"
DOI: 10.1007/s40192-020-00194-0
Abstract: The effective permittivity of composite materials depends highly on the geometry, the arrangement, and the permittivity of each component. This research proposes a new numerical method that takes into account those dependencies through assemblies of… read more here.
Keywords: permittivity composite; permittivity; method; composite materials ... See more keywords
In-line measurement of the dielectric permittivity of materials during additive manufacturing and 3D data reconstruction
Sign Up to like & getrecommendations! Published in 2020 at "Additive manufacturing"
DOI: 10.1016/j.addma.2019.101010
Abstract: Abstract Additive manufacturing (AM) techniques are used increasingly for the direct fabrication of microwave devices, such as graded index lenses and dielectric resonator antennas, which have spatially-varying dielectric properties (i.e. relative permittivity) that are difficult… read more here.
Keywords: line measurement; dielectric permittivity; permittivity; measurement dielectric ... See more keywords