Charge Density
Articles tagged with Charge Density
Computer hardware advance solves complex optimization problems
Researchers have developed a system that processes information using a network of oscillators to solve combinatorial optimization problems. The device uses quantum properties to process data at room temperature, overcoming current limitations in processing power and energy consumption.
Discovering quasiparticles ejected from color centers in diamond crystals
Scientists have created extremely thin sheets of nitrogen-vacancy (NV) centers in diamond crystals, which exhibit exceptional sensitivity to environmental variations. The findings reveal the emergence of Fröhlich polarons, previously thought not to exist in diamonds, opening up new prospects for quantum sensing.
Development of a model capable of predicting the cycle lives of high-energy-density lithium-metal batteries
Researchers developed a model to accurately predict the cycle lives of high-energy-density lithium-metal batteries using machine learning methods. The technique is expected to improve safety and reliability in devices powered by these batteries.
Understanding the origin of superconductivity in high-temperature copper oxide superconductors
A team of researchers has discovered a long-range charge-density wave order in a high-temperature superconductor induced by tensile-compressive strain, challenging conventional beliefs about magnetism as the primary driver. The findings have immense promise for elucidating the underlying mechanisms of high-temperature superconductivity.
New technique lets scientists create resistance-free electron channels
Researchers visualize chiral interface state at atomic scale for the first time, allowing on-demand creation of conducting channels. The technique has promise for building tunable networks of electron channels and advancing quantum computing.
Braided current collectors
Researchers at Fudan University have developed braided current collectors that increase the energy density of fiber lithium-ion batteries. The new design improves ion transport within the electrode, increasing charge density and reducing obstruction to lithium ion transport.
Renewing COVID masks
Researchers from The University of Tokyo have created a machine that can recharge N95 respirators and surgical masks to 97% efficiency. By applying a uniform voltage distribution, the device restores the mask's electrostatic charge, increasing its effectiveness.
Deconvoluting the data: Charge density distributions of electric double layers
University of Illinois researchers derived the depth profile of electric double layers using statistical analysis and electrostatic calculations. They developed a new method, CP-3D-AFM, to experimentally quantify the charge distribution at electrode-electrolyte interfaces.
Novel smart material enables high-performance and reliable light control of droplets
Researchers have developed a novel smart material that enables high-performance and reliable light control of droplets. The material, which consists of micro-size liquid metal particles, polyvinylidene fluoride trifluoroethylene copolymer, and micro-pyramidal structures, exhibits superior photothermal and ferroelectric properties.
Gwangju Institute of Science and Technology scientists improve the power output of triboelectric nanogenerators with carbon particles
Researchers at Gwangju Institute of Science and Technology improve triboelectric nanogenerators by using mesoporous carbon spheres to enhance charge transport and surface charge densities. The device achieves a 1300-fold higher output current, enabling potential sustainable energy harvesting.
Smart textiles: High performance, breathable fabric to power small electronics
Scientists at the University of Fukui developed a new triboelectric fabric that generates electricity from body movement, maintaining flexibility and breathability. The fabric, called AF-TENG, can power low-powered devices like LEDs and calculators, demonstrating its potential in wearable technology.
UCI scientists reveal mechanism of electron charge exchange in molecules
Researchers at UCI have developed a new scanning transmission electron microscopy method that enables visualization of the electric charge density of materials at sub-angstrom resolution. The technique revealed the mechanism of charge transfer between two materials and uncovered clues to the origins of ferroelectricity.
New mechanism moving droplets at record-high speed and long distance without extra power
A research team devised a novel mechanism to transport droplets at record-high velocity and distance without extra energy input. The new strategy uses surface charge density manipulation to achieve unidirectional and self-propelled liquid droplet transportation on diverse substrates.
'Giant' charge density disturbances discovered in nanomaterials
Scientists in Jülich have discovered a combination of materials that strengthens Friedel oscillations and bundles them in different directions, creating 'giant anisotropic charge density oscillations'. These oscillations can be used to enhance nanoelectronic components and filter magnetic information.