Results 81 to 90 of about 506,823 (306)

A general approach for hysteresis-free, operationally stable metal halide perovskite field-effect transistors

open access: yesScience Advances, 2020
Hysteresis-free operational stable perovskite FETs is demonstrated through ionic passivation and crystal modification. Despite sustained research, application of lead halide perovskites in field-effect transistors (FETs) has substantial concerns in terms
Satyaprasad P. Senanayak   +15 more
semanticscholar   +1 more source

Fabrication of Multifunctional FeSi Gyroid Lattice Composites via Additive Manufacturing and Polymer Infiltration

open access: yesAdvanced Engineering Materials, EarlyView.
A two‐step approach combining laser powder bed fusion of FeSi electrical steel with Bakelite infiltration enables the fabrication of multifunctional gyroid lattice composites. The resulting structures exhibit high strength, magnetic anisotropy, and complete polymer infiltration, demonstrating a simple and scalable route toward lightweight, mechanically
Angelo F. Andreoli   +9 more
wiley   +1 more source

Spontaneous unidirectional rotation of a symmetric gear driven by spherical active particles

open access: yesNational Science Open
Time reversal asymmetry and spatial anisotropy are considered two prerequisites for Brownian ratchet. An intriguing realization can be achieved by placing an asymmetric gear in the suspension of motile rod-like bacteria.
Wang Chao   +4 more
doaj   +1 more source

Orientational hysteresis in swarms of active particles in external field

open access: yes, 2015
Structure and ordering in swarms of active particles have much in common with condensed matter systems like magnets or liquid crystals. A number of important characteristics of such materials can be obtained via dynamic tests such as hysteresis.
Lobaskin, Vladimir, Romensky, Maksym
core   +1 more source

Efficient Multifunctional Response and Polarization Switching in BiFeO3–PbZr0.58Ti0.42O3–MnFe2O4‐Based Triphasic Composites for Advanced Pulsating Applications

open access: yesAdvanced Engineering Materials, EarlyView.
Triphasic BiFeO3–PbZr0.58Ti0.42O3–MnFe2O4 composites exhibit enhanced ferroelectric and magnetic behavior, achieving 70.76% energy‐storage efficiency and improved polarization switching. The coupling between ferroelectric and magnetic phases enables multifunctional performance, making these composites promising candidates for next‐generation energy ...
Hassan Raza Khan   +7 more
wiley   +1 more source

Analytical model of deformation of reinforced concrete columns based on fracture mechanics

open access: yesStructural Mechanics of Engineering Constructions and Buildings, 2022
When conducting seismic calculations of reinforced concrete buildings and structures, it is quite important to use nonlinear models of structural performance, including those taking into account the overcritical operation in the fracture stage.
Ashot G. Tamrazyan   +3 more
doaj   +1 more source

Ionic polarization-induced current–voltage hysteresis in CH3NH3PbX3 perovskite solar cells

open access: yesNature Communications, 2016
CH3NH3PbX3 (MAPbX3) perovskites have attracted considerable attention as absorber materials for solar light harvesting, reaching solar to power conversion efficiencies above 20%.
S. Meloni   +10 more
semanticscholar   +1 more source

Sustainable Synthesis of Bio‐Based Magnetic and Conductive Wood for Electromagnetic Interference Shielding Applications

open access: yesAdvanced Engineering Materials, EarlyView.
A wood‐based magnetic and conductive material called Magwood (MW), capable of blocking almost 99.99% of electromagnetic waves (in the X‐band frequency range), is synthesized using a simple, solvent‐free process. MW is lightweight, resists water, and is flame‐retardant, making it a promising alternative for shielding electronics. The rapid proliferation
Akash Madhav Gondaliya   +3 more
wiley   +1 more source

Tip-Jump Response of an Amplitude-Modulated Atomic Force Microscope

open access: yesSensors, 2012
The dynamic behaviors of an Atomic Force Microscope are of interest, and variously unpredictable phenomena are experimentally measured. In practical measurements, researchers have proposed many methods for avoiding these uncertainties. However, causes of
Po-Jen Shih
doaj   +1 more source

Hysteresis of Electronic Transport in Graphene Transistors

open access: yes, 2010
Graphene field effect transistors commonly comprise graphene flakes lying on SiO2 surfaces. The gate-voltage dependent conductance shows hysteresis depending on the gate sweeping rate/range.
Adam S.   +48 more
core   +1 more source

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