Articles tagged with Voltage
Researchers developed a regioselective bay-functionalization method to synthesize PDI-based acceptor materials. This approach lifts the LUMO level, reducing energy offset for charge separation and non-radiative recombination loss in organic solar cells.
A team of scientists has discovered a voltage-induced 'superfluid' like penetration effect in liquid metals at room temperature, mimicking the properties of liquid helium superfluids. The phenomenon occurs due to the reduction of surface tension, enabling the liquid metal to superwet and penetrate porous materials.
Scientists with the HAWC Collaboration have detected gamma-ray emissions at unprecedented energy levels above 56 TeV. The findings suggest the presence of Galactic accelerators, known as PeVatrons, which could be a new area of research for pulsars and supernova remnants.
Researchers at University of Würzburg developed nano antennas that can emit light in a specific direction, enabling efficient data transfer. The antennas use quantum tunnelling to generate vibrations with optical frequencies and are capable of emitting light in a particular direction.
DEAnsect, a soft robotic insect, is equipped with dielectric elastomer actuators (DEAs) that enable it to move forward through vibrations. The insect is lightweight and quick, allowing it to navigate different terrain types, including undulating surfaces.
Researchers have developed new methods to track brain activity in living mice, using a molecule that responds directly to voltage changes in neurons. The techniques enable the study of fine details of brain activity, including how neurons process signals and decide when to spike.
Researchers at PTB have implemented a novel pressure measurement method based on electrical measurements of helium gas, offering unique possibilities to investigate helium as an important model system for physics fundamentals. This new method has been compared with conventional mechanical and electrical pressure measurements, providing...
Researchers detected tera-electron volt radiation in the afterglow of GRB 190114C, a gamma-ray burst from a dying star. This validated their predictions and provided new insights into the extreme environment of gamma-ray bursts.
A team of scientists at ETH Zurich has developed a novel electro-opto-mechanical switch that can assess surroundings quickly and recognize people and obstacles. The switch uses plasmonics technology, which enables fast and compact switching with low losses.
Researchers discovered the most energetic gamma-ray burst ever recorded, emitting 1 tera-electron-volt of energy. This breakthrough confirms theoretical predictions and opens new avenues for understanding these powerful cosmic events.
Engineers at University of Michigan have developed a 3D transistor array design that integrates high-voltage devices with low-voltage silicon chips, enabling more compact and functional chips. This breakthrough paves the way for individual transistors to handle both digital and analog signals, overcoming current limitations.
Researchers have developed a new oxygen evolution reaction catalyst that can produce hydrogen from seawater at current densities capable of supporting industrial demands. The catalyst requires relatively low voltage to start seawater electrolysis and avoids obstacles that limited earlier attempts.
Scientists have doubled the highest electron energy ever produced by a laser plasma accelerator, reaching 7.8 billion electron volts (GeV) in an 8-inch-long plasma. This breakthrough is crucial for building next-generation particle colliders that accelerate electrons to extreme energies.
A team of researchers from Tokyo Tech has developed a promising material, Pb2Ti2O5.4F1.2, to generate clean fuel through water splitting. The oxyfluoride overcomes stability issues with traditional photoanode materials, enabling efficient water-splitting reactions.
Researchers achieved high power conversion efficiencies in organic solar cells by designing a highly crystalline donor-acceptor interface. The V_oc was found to increase with increasing acceptor layer crystallinity, resulting in reduced energy loss and improved efficiency.
Researchers at Lancaster University created a nano-electronic circuit that vibrates on its own when given an electrical current, generating motion directly from the energy. The carbon nanotube wire used in the device oscillated at frequencies too high for human hearing, producing sound waves equivalent to an A string pitched 21 octaves...
A team of researchers at MIT has developed an 'electroadhesive' stamp that can pick up and place down objects as small as 20 nanometers wide. The stamp uses a sparse forest of ceramic-coated carbon nanotubes to create temporary electrical attraction, allowing it to grasp microscopic structures with precise control.
Researchers from the University of Cambridge have identified a promising replacement for toxic greenhouse gases used in refrigerators and air conditioners. The device, based on layers of oxygen and metallic elements PST, displays the largest electrocaloric effects yet observed in a body large enough for cooling applications.
University of Oregon researchers have identified a design principle that points to making catalytic particles really small for increased efficiency. Smaller nanoparticles collect excited positive charges, preventing recombination and generating higher voltages.
Researchers discovered that bioelectricity plays a crucial role in developing embryos, specifically in the formation of cartilage and bone. The study found that voltage gated calcium channels initiate molecular changes that lead to differentiation into mature cartilage cells.
Researchers from Oxford, Basel, and Lancaster develop an algorithm that uses machine learning to automate the process of characterizing quantum dots. By reducing measuring time and number of measurements, this approach enables efficient characterization of large arrays of quantum devices.
Researchers at the Ferdinand-Braun-Institut developed beta-Ga2O3-MOSFETs with a high breakdown voltage and record power figure of merit, achieving unique performance figures close to theoretical material limits. The improved electrical properties lead to lower on-state resistances and higher breakdown voltages.
Researchers at Binghamton University have found a way to improve the performance of tiny sensors that could lead to breakthroughs in microphone manufacturing, making them smaller, better and cheaper. The new design combines two methods for electrostatic actuation, eliminating nonlinearity and allowing for predictable control over devices.
Researchers at DGIST developed flexible sensors that can detect pressure and vibration similar to human skin, with more sensitive detections. The sensors mimic 'Slow Adaptive' and 'Fast Adaptive' receptors, enabling accurate classification of fabric roughness and potential applications in artificial skin grafting and VR experiences.
Researchers have developed a powerful new brain imaging tool called Voltron, which lets them track neuron activity in living animals more precisely and for longer periods than before. Voltron uses an ultra-bright synthetic dye and a specially engineered protein to detect neural signals throughout the brain.
Researchers studied electricity quality in Unguja, Tanzania, finding significant variations in voltage quality that cause lights to be dim and appliances to break. These findings suggest that low-income residents do not benefit from modern energy services despite being connected to the grid.
Researchers at Stanford University have discovered a novel form of magnetism, called orbital ferromagnetism, generated by carefully stacking and rotating honeycomb-shaped carbon lattices. This finding could prove useful for certain applications, such as quantum computing.
Physicists have visualized the electronic structure in a microelectronic device for the first time, opening opportunities for high-performance electronics. The technique uses angle-resolved photoemission spectroscopy to measure energy and momentum of electrons, revealing how voltage affects material behavior.
Researchers have successfully developed a ferroelectric FET with ferroelectric-HfO2 and ultrathin IGZO channel, demonstrating nearly ideal subthreshold swing and mobility higher than poly-silicon. The device achieves low-power, high-speed, and high-capacity memory capabilities.
University of Rochester researchers create a transistor-scale device platform that combines 2D materials with oxide materials, enabling phase changes in response to applied strain. This technology has the potential to transform electronics, optics, computing, and other technologies by controlling previously uncontrollable properties.
Scientists have found a way to lower the energy required by organic light emitting diodes (OLEDs) by manipulating excitons, pairs of electrons and holes. By developing a new mechanism, researchers were able to create devices with low operating voltage.
Scientists created an EDLT device to control electron numbers and transfer energy, achieving superconducting states in both increasing and decreasing electron numbers. The system exhibited fundamentally different conditions for these states, with another superconducting state emerging when the substrate was bent.
Researchers at the University of Missouri have made a groundbreaking discovery about how neurons function normally. By artificially augmenting the electrical signals of isolated neurons, they found that the cells can adjust to changes in their environment without significant harm. This finding could lead to new treatments for spinal co...
Researchers at Harvard University have developed a new tool that records and controls neural activity in real-time using genetically encoded voltage indicators. This breakthrough enables the study of complex behaviors and neural interactions with unprecedented clarity.
Researchers have developed a new method to demonstrate liquid-like electron behavior in graphene, allowing for more accurate observation of hydrodynamic flow. This could lead to conduction with reduced energy loss and faster low-power devices.
Researchers have developed a permanent static negative capacitor that can redistribute electricity on a small scale, improving computing efficiency. The device works as a steady-state, reversible system, allowing for controlled voltage distribution and increased energy efficiency.
Researchers have developed dual-ion batteries that integrate anodes and cathodes, enabling high efficiency and low cost. The batteries use aluminum foil as the cathode material and graphite as the anode, achieving a new level of performance.
A Lehigh University team led by Frank E. Curtis is developing new algorithms to improve resilience in the Department of Energy's Grid Optimization Competition. The goal is to address complex optimization problems, such as the SCOPF problem, and develop more flexible and resilient grid software.
The GRAPES-3 muon telescope has discovered a record 1.3 gigavolt potential in a thundercloud, exceeding the previous record by 10 times. This massive voltage is essential for producing high-energy gamma rays in Terrestrial Gamma Ray Flashes.
Researchers discovered that applying mechanical pressure to tetraethylammonium di-iodine triiodide increases its conductivity. The pressure-induced changes lead to the formation of CT chains, making TEAI a tunable pressure-sensitive electric switch.
A new measurement approach could create the first CT measurement standards connected to the International System of Units (SI), allowing for more precise calibration and comparison among scanners. This could lead to improved communication among doctors, more efficient diagnosis, and less costly treatment.
Researchers at the University of Manchester discovered that graphene's Hall effect becomes viscous due to electron-electron interactions. This phenomenon can lead to unique behaviors such as negative resistance and superballistic flow, even at room temperature.
For the first time, researchers from Charité - Universitätsmedizin Berlin have measured the 'Bereitschaftspotential' (readiness potential) outside a laboratory and under extreme conditions. This finding will help advance brain-computer interface development, enabling quadriplegics to control neuroprosthetics and regain hand function.
Researchers at Harvard John A. Paulson School of Engineering and Applied Sciences have developed a method to change the shape of a flat sheet of elastomer using actuation that is fast, reversible, and controllable by an applied voltage.
Researchers at Columbia University have developed a new method to fine-tune adjacent layers of graphene using pressure to induce superconductivity. The discovery provides critical confirmation of previous findings and offers an alternative paradigm for manipulating electronic properties in graphene, potentially leading to the developme...
MIT engineers develop a microfluidic technique to quickly assess bacteria's electrochemical activity, finding a strong correlation between polarizability and electricity production. This breakthrough could lead to new applications in power generation and environmental cleanup.
Researchers at MIT and elsewhere have recorded the temporal coherence of a graphene qubit, demonstrating a key step forward for practical quantum computing. The qubit maintained a superposition state for 55 nanoseconds before returning to its ground state.
Researchers have developed a new method to non-destructively measure the salt content of concrete structures using a compact neutron source. This allows for efficient inspections without damaging the structure, which is crucial for aging infrastructure such as bridges and tunnels.
Researchers at IIT found that single plant leaves can generate more than 150 volts of electricity, enough to power 100 LED light bulbs. An 'hybrid tree' made of natural and artificial leaves can convert wind into electricity, providing a new sustainable energy source.
Electrical engineers at TU Darmstadt have designed a laser-driven electron accelerator that can be produced on a silicon chip, enabling inexpensive and compact particle accelerators. The design uses an alternating-phase focusing method to focus electrons in a narrow channel, promising applications in industry and medicine.
Osaka University scientists created a new approach to pressure distribution measurement using universal tactile imaging technology. The sensors have no need for pressure-sensitive materials and are simpler to manufacture, making them suitable for various applications including robotics and surgical medicine.
Researchers at NUS developed a low-cost 'battery-less' wake-up timer that significantly reduces power consumption of silicon chips for IoT sensor nodes. The innovation enables long-lasting IoT applications and paves the way for aggressive miniaturization of IoT devices.
Researchers at the University of Alabama have developed a new plasma device that can clean water of difficult-to-remove bacteria and toxins. The device uses pulses of voltage to produce hydroxyl radicals, which cause a cascade of reactions leading to purer water samples.
Researchers have created a wearable heater by modifying woven fabric with DuPont Kevlar fiber and nanowires, providing uniform heat and thermal insulation. The material is strong, flexible, breathable, and washable, making it suitable for use in cold-weather clothing.
Researchers identify CoNb3S6 as a topological material exhibiting an extremely large anomalous Hall effect due to its unique electronic structure. The discovery opens doors for advances in materials science and potential electronic applications.
A new ultra-light haptic glove enables users to interact with virtual objects in a highly realistic way, generating forces of up to 40 Newtons. The device has potential applications in gaming, healthcare and augmented reality.
Researchers from Japan have developed a way to better measure and manipulate conductive materials through scanning tunneling microscopy. The team designed a custom terahertz pulse cycle that quickly oscillates between near and far fields within the desired electrical current.
Engineers at UC San Diego create a super-hydrophobic surface that produces at least 50 millivolts when salt water flows over it, enabling new power sources for lab-on-a-chip platforms and microfluidics devices.
Researchers at North Carolina State University have developed a new electric vehicle fast charger that is 10 times smaller and wastes 60% less power than existing systems. The technology, called medium voltage fast charger (MVFC), has an efficiency of at least 97.5%, reducing operating costs and increasing revenue for consumers.
Researchers have successfully fabricated tiny on-chip lithium niobate modulators with ultra-high data transmission speeds and lower energy consumption. The breakthrough technology has the potential to revolutionize the optoelectronic industry by enabling high-speed, low-power, and cost-effective communication networks.