Articles tagged with Capacitors
Fang Peng has made significant contributions to Z-source and modular multi-level converters for distribution and transmission networks. These technologies improve safety, flexibility, and performance in diverse energy sources. Peng's work aims to create resilient systems that can handle faults and prevent devastating wildfires.
Researchers have developed a novel polymer alloy material made from commercially available plastics that can handle unprecedented high temperatures and store more energy than traditional polymer capacitors. The new material has a dielectric constant of 13.5, allowing it to maintain its performance level from -148 F to 482 F.
A team of Korean researchers has successfully integrated a single memristor into micro-LED pixels, replacing the traditional driving transistor and storage capacitor. This innovation enables more efficient and easier-to-build displays with improved brightness and color accuracy.
Researchers developed spherical carbon superstructures with hydrogen-bond guidance to enhance energy storage performance in zinc hybrid capacitors. The work highlights the importance of interfacial engineering and hierarchical porosity for advancing high-energy energy storage technologies.
Researchers at Pohang University of Science & Technology have successfully synthesized Prussian Blue with an octahedral morphology by using a specialized solvent. The new crystal shape enhances electrochemical reactivity and stable performance in sodium-ion hybrid capacitors.
A discarded ornamental shrub can now power electric buses thanks to a new material that triples the energy density of previous devices. The material, called PHAC, shows high surface area and mesopore volume, enabling rapid ion transport and long cycle life.
A new technique for controlling phase boundaries in thin films allows researchers to engineer lead-free energy storage materials with promising dielectric properties. By manipulating the film thickness, they can control the distribution of crystalline structures and enhance specific characteristics of the material.
A new machine learning-based design method has been proposed to achieve stable and efficient wireless power transfer. The approach uses real-world circuit modeling and numerical simulations to optimize system performance, demonstrating significant improvements in output voltage stability and power-delivery efficiency.
Researchers developed a new method for building powerful, compact energy storage devices using thin-film supercapacitors without metal parts. The device can output 200 volts, equivalent to powering 100 LEDs for 30 seconds or a 3-watt bulb for 7 seconds.
Researchers developed a low-cost nanocomposite with excellent electrochemical performance for supercapacitors and strong catalytic efficiency in degrading industrial pollutants. The material has promising dual functionality for energy storage and environmental remediation.
Researchers used a machine-learning technique to accelerate discovery of materials for film capacitors, identifying a compound with record-breaking performance. The study aims to improve capacitor shielding properties and enhance energy savings in common electric power applications.
A team of researchers has successfully identified a compound with record-breaking performance in film capacitors, a crucial component in renewable energy technologies. The breakthrough was achieved using a machine-learning technique that screened nearly 50,000 chemical structures to find the optimal material.
A novel capacitorless solid-state power filter (SSPF) has been developed for single-phase DC-AC converters, eliminating the need for LC filters and dc-link capacitors. The proposed concept demonstrates a significant reduction in critical components, leading to enhanced efficiency and reliability.
Researchers developed a novel nanoporous material with exceptional piezoelectric capabilities, outperforming traditional lead-based materials. The material's ultra-thin structure and straightforward synthesis approach make it a highly promising candidate for future high-density energy harvesting.
Researchers have developed microcapacitors with record-high energy and power densities, paving the way for on-chip energy storage in electronic devices. By engineering thin films of hafnium oxide and zirconium oxide, scientists achieved a negative capacitance effect, allowing for greater amounts of charge to be stored.
Researchers at Washington University in St. Louis have developed a novel 2D/3D/2D heterostructure material that can minimize energy loss while preserving ferroelectric material properties. The new structure achieved an energy density up to 19 times higher than commercially available capacitors and efficiency over 90%.
Researchers developed a template-free strategy for edge-nitrogen doped porous carbon anodes, improving K+ adsorption and intercalation capabilities. The resulting potassium-ion hybrid capacitors exhibit high capacities and energy densities.
Researchers are combining biology, physics, computer science, and engineering to design electric circuits that mimic the brain's adaptive behavior. The goal is to create a more efficient AI application that can learn from history and adapt without significant energy consumption.
Engineers at UC San Diego developed wireless, battery-free force stickers that measure the force exerted by one object on another. The stickers can be used in various applications, including biomedical devices, industrial equipment monitoring, and inventory management.
Researchers at Nagoya University developed a nanosheet device with the highest energy storage performance yet seen. The device achieved a 1-2 orders of magnitude higher energy density while maintaining high output density and stability over multiple cycles.
Researchers at KAUST developed smart digital image sensors that can recognize images with high accuracy, using a charge-trapping 'in-memory' sensor sensitive to visible light. The devices have an extremely long-lived retention time of up to 10 years and can perform optical sensing, storage, and computation.
Researchers at Texas A&M University have identified a new circuit element called the meminductor, which exhibits memory-like properties. The discovery was made using a two-terminal passive system and proved the existence of meminductance in an inductor circuit element.
MIT researchers have developed a receiver chip that targets and blocks unwanted signals without hurting device performance. The chip uses a mixer-first architecture and block digital filtering to remove harmonic interference, enabling it to handle high-power signals effectively.
Researchers developed a new polymer-based device that efficiently handles record amounts of energy while withstanding extreme temperatures and electric fields. The device has outstanding dielectric properties, especially at high electric fields and temperatures.
Researchers have developed flexible polysulfate compounds that can form thin films, enabling the creation of energy-storing capacitors that withstand extreme temperatures and electric fields. These new materials could lead to cheaper, simpler, and more durable power systems in electric cars and other applications.
Researchers have successfully fabricated bifunctional flexible electrochromic supercapacitors using silver nanowire flexible transparent electrodes. The devices can exhibit color changes to display energy status, offering potential for smart windows and wearable electronics. With excellent stability and high areal capacitance, these fl...
Researchers at Osaka Metropolitan University have developed a thermally stable bulk-type all-solid-state capacitor with a highly deformable oxide solid electrolyte. This innovation enables high current densities and high-capacity charging/discharging at temperatures up to 300°C, opening doors for high-temperature applications.
Researchers have developed microsupercapacitors that can be integrated onto stone tiles, enabling high-performance and customizable power from natural building materials. The devices maintain a high energy storage capacity even after multiple charge-discharge cycles.
Researchers developed a thin-layer version of barium titanate, enabling faster switching and lower voltages for next-gen memory and logic devices. The findings could pave the way for more sustainable computing power with reduced energy consumption.
MIT researchers demonstrate two security methods that protect analog-to-digital converters from powerful attacks, including power and electromagnetic side-channel attacks. The techniques are more efficient and less expensive than other security methods, minimizing power consumption and cost for portable smart devices.
Researchers developed tiny sensor-carrying devices inspired by dandelion seeds to monitor environmental conditions like temperature and humidity. The devices can travel up to 100 meters on a breeze, share data wirelessly up to 60 meters away, and power themselves using solar panels.
Using 2D materials, researchers have built superconducting qubits that are significantly smaller than previous designs. The new capacitors store energy without interfering with qubit information storage. This breakthrough paves the way for smaller quantum computers and could lead to new applications of 2D materials.
The PHAse Space MApping experiment, a complex plasma physics research project at WVU, aims to study the motion of ions and electrons in plasmas. The facility can measure three-dimensional motion at very small scales and is capable of performing detailed measurements.
Integration of a mobility-enhanced field-effect transistor (FET) and a ferroelectric capacitor enables the creation of high-density, energy-efficient embedded memory directly on a microprocessor. This design significantly reduces signal travel distance, speeding up learning and inference processes in AI computing.
Researchers at Tokyo Institute of Technology develop a 3D functional interposer containing an embedded capacitor, saving up to 50% package area and reducing wiring resistance. This compact design enables less noise and power consumption, paving the way for new semiconductor package structures with greater miniaturization.
Researchers found that engineered defects in oxide crystals can increase electrical performance by five-fold and 19-fold in dielectric and piezoelectric properties, respectively. This breakthrough could lead to the development of more efficient capacitors with improved environmental and health benefits.
Researchers at Washington University in St. Louis have created self-powered quantum sensors that can run for over a year with just a small initial energy input. The sensors use a fundamental law of physics to generate power, allowing them to measure ambient motion and other phenomena without batteries.
Researchers found that sulfate anions significantly improve the performance of zinc-ion hybrid capacitors, enabling them to operate for over nine months and showing excellent flexibility. The study highlights the importance of electrolyte anions in enhancing the power and energy density of capacitors.
Berkeley Lab researchers introduce isolated defects to a type of commercially available thin film, creating a top-performing energy storage material. The new material has more than twice the energy storage density of previously reported values and 50% higher efficiencies.
Researchers at North Carolina State University developed a computational model that understands how material nanostructure affects conductivity. The goal is to inform the development of new energy storage devices for various electronics.
Researchers from National University of Singapore developed a new stretchable material called HELIOS that can store more electronic charges at lower voltages, enabling higher brightness and longer operating lifetime. The material has self-healing properties, allowing it to repair itself under ambient environmental conditions.
The $2.5 million project aims to create compact electronic power systems for military installations, utilizing gallium nitride devices for efficient energy storage and discharging. Machine learning will be used to predict the lifespan of GaN devices and circuits.
Researchers at Penn State have developed a method to improve the efficiency and heat tolerance of devices, including electric cars, drills, and grids. By altering dielectric capacitors with engineered materials, they increased storage capacity while also increasing electric charge efficiency.
Researchers from the University of Leeds have created a 'spin capacitor' that can generate and hold the spin state of electrons for hours, opening up possibilities for new devices with efficient data storage. This innovation could lead to more sustainable technologies requiring less power.
Researchers have produced barium titanate ceramics using cold sintering at record low temperatures, achieving high quality without the need for secondary heating. This breakthrough could lead to more efficient manufacturing and reduced environmental impacts.
Researchers from MIPT and their international colleagues achieved a breakthrough in nonvolatile memory devices by measuring electric potential distribution across a ferroelectric capacitor. The new memory cell has been shown to endure 10 billion rewrite cycles, surpassing current flash drives.
Lithium-ion capacitors combine large storage capacity and rapid charging capabilities. Researchers have proposed a new approach using two additives to facilitate incorporation of lithium into capacitors, enabling cost-effective development of these components. This method has the potential to increase energy storage efficiency.
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.
By teaching a computer to simulate the electronic structure of aluminum and polyethylene using machine learning, researchers have developed a faster method that produces similar results. This approach has the potential to enable the design of more efficient electronic devices.
Scientists developed a new MEMS energy harvester with separate chips, allowing for more flexibility in design. This enables the use of mechanical vibrations to power tiny devices, crucial for future IoT applications.
Binghamton University researchers developed 'neuristor' circuits that mimic biological neurons, enabling complex computations using minimal power. The team created niobium dioxide devices without electroforming, making them more efficient and scalable.
Researchers have developed a family of metal-free ferroelectric perovskites offering non-toxic and mechanically flexible properties for future soft robotic and biomedical devices. One organic compound exhibits ferroelectric traits similar to inorganic BTO, enabling environmentally friendly applications.
A new framework developed by MIT researchers guarantees stability in microgrids supplying local power to communities, reducing the reliance on main power grids. The design allows for modular power systems that can be easily reconfigured for changing needs, providing a lower-cost solution with guaranteed reliability and security.
A new optically tunable capacitor has been developed by Israeli researchers, featuring embedded metal nanoparticles. The capacitor's capacitance is tunable by illumination and exhibits a strong frequency dispersion, allowing for high degree of tunability.
Graphene-based quantum capacitor offers advantages in fabrication and resistance to electromagnetic interference. The device has the potential to produce stable qubits and can be used for high-frequency circuits or other electro-optic applications.
Researchers at Hokkaido University are developing perovskite ceramic capacitors with improved insulating properties. The process involves sintering and annealing the material to exhibit ferroelectricity, a promising dielectric property for multi-layered ceramic capacitors.
Researchers have developed an 'octopus-like' skin that can stretch, sense pressure, and emit light. The hyperelastic, light-emitting capacitor (HLEC) device outperforms previous models in terms of elasticity and versatility.
The new NIST method uses nonlinear acoustic measurements to detect cracks in ceramic capacitors before they cause electrical failure. This approach has shown promise in rejecting over 90% of sample capacitors with visible cracks and may help prevent failures in medical implants, spacecraft, and other mission-critical electronics.
A new type of RFID chip is virtually impossible to hack, preventing identity theft and high-tech burglaries. The chip uses ferroelectric crystals to thwart power-glitch attacks and features a bank of capacitors as an on-chip energy source.
A two-stage power management system developed by Georgia Tech researchers improves triboelectric generator efficiency, enabling the powering of wearable and mobile devices. The system converts fluctuating energy amplitudes to continuous direct current, increasing energy output up to 330 times.