Results 71 to 80 of about 199,086 (341)

Effects of interaction between filler and resin on the glass transition and dielectric properties of epoxy resin nanocomposites

IET Nanodielectrics, 2019
Polymer nanocomposites are known to exhibit superior insulation performance. As a reason for this, interactions at the filler/polymer interfaces are widely believed.
Keigo Mori, Naoshi Hirai, Yoshimichi Ohki, Yasutomo Otake, Takahiro Umemoto, Hirotaka Muto, Hirotaka Muto   +6 more
doaj   +1 more source

Low‐Loss Far‐Infrared Surface Phonon Polaritons in Suspended SrTiO3 Nanomembranes

Advanced Functional Materials, EarlyView.
The low‐loss, highly confined, and thickness‐tunable surface phonon polaritons are demonstrated in the far‐infrared regime within transferable freestanding SrTiO3 membranes, achieving high figures of merit comparable to the previous record values from the vdW materials.
Konnor Koons, Hans A. Bechtel, Javier Taboada‐Gutiérrez, Reza Ghanbari, Yueyin Wang, Stephanie N. Gilbert Corder, Alexey B. Kuzmenko, Ruijuan Xu, Yin Liu   +8 more
wiley   +1 more source

Imaging of Microwave Permittivity, Tunability, and Damage Recovery in (Ba,Sr)TiO3 Thin Films

, 1999
We describe the use of a near-field scanning microwave microscope to quantitatively image the dielectric permittivity and tunability of thin-film dielectric samples on a length scale of 1 micron. We demonstrate this technique with permittivity images and
Anlage, Steven M., Canedy, C., Melngailis, J., Ramesh, R., Stanishevsky, A., Steinhauer, D. E., Vlahacos, C. P., Wellstood, F. C.   +7 more
core   +1 more source

Electro‐Active Metasurfaces Controlling Exceptional Topological Phase Through Low‐Voltage Operation on Conductive Polymer

Advanced Functional Materials, EarlyView.
This research investigates an electro‐active chiral optical response (EACOR)‐driven dual‐channel metasurfaces with fast electrical switching rates of 52 ms, and a low operating voltage of 0.5 V. The combination of polyaniline (PANI) thin film and the exceptional topological (ET) phase of chiral gold (Au) meta‐atoms modulate holographic images through ...
Jaekyung Kim, Minsu Jeong, Chunghwan Jung, Junhwa Seong, Junsuk Rho   +4 more
wiley   +1 more source

Nontrivial dependence of dielectric stiffness and SHG on dc bias in relaxors and dipole glasses

, 2004
Dielectric permittivity and Second Harmonic Generation (SHG) studies in the field-cooled mode show a linear dependence of dielectric stiffness (inverse dielectric permittivity) on dc bias in PMN-PT crystals and SHG intensity in KTaO$_{3}$:Li at small Li ...
A. S. Emelyanov, Chu F., Colla E. V., Eden S., Emel’yanov S. M., Eugene V. Colla, I. P. Raevski, J-L. Dellis, L. Jastrabik, M. El Marssi, Patashinski A. Z., Raevski I. P., S. A. Prosandeev, S. E. Kapphan, Sakudo T., Vaks V. G.   +15 more
core   +1 more source

Fast Neutron Detector Based on Hybrid 2D Perovskite Thin Films

Advanced Functional Materials, EarlyView.
This work presents the direct detection of fast neutrons using flexible hybrid 2D perovskite (PEA2PbBr4) thin‐film detectors. Thanks to their high low‐Z elements content and good charge transport, these materials enable efficient neutron detection. The thin film configuration allowed the operation at low voltage, and offer scalability, flexibility, and
Ilaria Fratelli, Felix Pino, Laura Basiricò, Giulia Napolitano, Jessica Carolina Delgado, Sara Cepić, Andrea Ciavatti, Sandra Moretto, Gianluigi Maggioni, Marco Cinausero, Sara Maria Carturan, Beatrice Fraboni   +11 more
wiley   +1 more source

Tailoring the Microstructure of B‐Cation Octahedra in Halide Double Perovskites for Efficient Selective CO2‐to‐CO Photoreduction

Advanced Functional Materials, EarlyView.
The thermodynamic obstacle of CO2‐to‐CO conversion over metal halide perovskite photocatalysts is addressed by modulating the local electronic structure. A 13‐fold improvement in selective CO2 photoreduction to CO is achieved, with ≈100% selectivity.
Chunhua Wang, Wenjing Shen, Zhirun Xie, Yannan Wang, Yang Ding, Ning Han, Michael K.H. Leung, Biao Liu, Zhi Zhu, Yun Hau Ng   +9 more
wiley   +1 more source

PVC nanocomposites for cable insulation with enhanced dielectric properties, partial discharge resistance and mechanical performance

High Voltage, 2020
The current study aims to develop polyvinyl chloride (PVC) nanocomposites with enhanced electrical and mechanical properties by incorporating titanium oxide (TiO(2)) nanoparticles within PVC chains.
Nagat M.K. Abdel-Gawad, Adel Z. El Dein, Diaa-Eldin A. Mansour, Hanaa M. Ahmed, Mohamed M.F. Darwish, Matti Lehtonen   +5 more
doaj   +1 more source

Sonication‐Assisted Palladium Nanogaps in a Capacitive Structure: A Tunable and Reliable Solution for Sensitive Hydrogen Monitoring

Advanced Functional Materials, EarlyView.
This study presents a capacitive hydrogen sensor with a simple structure and process. Sonication‐induced Pd nanogaps modulate the effective electrode area in response to hydrogen concentration, resulting in capacitance changes within a range predefined by physical parameters.
Sang‐kil Lee, Joonho Lee, Jiwoo Hong, Seyoung Park, Eugene Cho, Seunghyun Lee, Keunhyung Lee, Hyun‐Sook Lee, Kyu Hyoung Lee, Wooyoung Lee   +9 more
wiley   +1 more source

Effect of different surface treatment agents on the physical chemistry and electrical properties of polyethylene nano-alumina nanocomposites

High Voltage, 2020
Generally, the electrical properties of nanocomposite are affected by the type, size, filling concentration and surface treatment process of the nanoparticle.
Xuhui Duan, Wah Hoon Siew, Wah Hoon Siew, Martin Given, John Liggat, Jinliang He   +5 more
doaj   +1 more source