Articles tagged with Graphene
Researchers have discovered a way to twist material properties by stacking and slightly rotating 2D layers, which significantly influences the material's properties. This phenomenon, known as the Moiré effect, allows for control over phonon vibrations, potentially leading to new applications in materials science.
The UMass Amherst team developed a graphene-based flow sensor that can detect biofluidic flows as low as micrometer per second, enabling minimal changes in blood flow monitoring. The sensor's high sensitivity and stability make it suitable for long-term implantation in small blood vessels.
Researchers discovered a method to modify graphene's shape and properties by exposing it to powerful laser pulses. The process, called optical forging, stiffens the material, increasing its bending stiffness and vibrational frequency. This leads to improved device speed and precision, with record-breaking stiffness achieved.
An interdisciplinary research team at Kiel University has produced a highly conductive hydrogel that retains its elasticity, suitable for medical implants. The innovative production method uses graphene to achieve high electrical conductivity while maintaining the original mechanical properties.
A research team led by Brown University physicists has found that reducing the repulsive force between electrons in magic-angle graphene makes its superconducting state more robust. This discovery provides important insights into the system's behavior and is a significant step towards understanding unconventional superconductivity.
Researchers successfully demonstrated a new methodology for direct near-field optical imaging of acoustic graphene plasmon fields. This strategy will provide a breakthrough for the practical applications of acoustic graphene plasmon platforms in next-generation optoelectronic devices.
Researchers have successfully created borophane, a stable form of atomically thin boron, which exhibits strength, flexibility and electronics properties. This breakthrough enables the exploration of its real-world applications in fields like batteries, electronics and quantum computing.
Researchers found that graphene flakes can temporarily inhibit excitatory synapses, reducing anxiety-related responses in rats. The nanomaterial was injected into the lateral amygdala, a region of the brain associated with stress response, and successfully reversed long-lasting anxiety behaviors.
Researchers at TU Wien found that thin hBN layers cause excessive leakage currents in miniaturised transistors, making it unsuitable as a gate insulator. The study suggests a need to search for alternative insulator materials to revolutionize the semiconductor industry.
Researchers propose a tri-layer mask design that includes a graphene oxide mixture for enhanced anti-bacterial activity. This coating simplifies the number of layers in the design while maintaining high filtration efficiency, making it suitable for reusable N95 masks.
Researchers at HZB have developed a method to control lattice vibrations in graphene, enabling the creation of phononic crystals with tunable properties. This breakthrough paves the way for applications in ultrasensitive sensors and quantum technologies.
The development of sub-diffraction optical writing overcomes the limitation of diffractive light, enabling a much-improved data density. The technology achieves an estimated storage capacity of 700 TB on a 12-cm optical disk, comparable to 28,000 Blu-ray disks.
Scientists have developed a graphene filter that can extract carbon dioxide from industrial emissions with high efficiency and speed. The filter, which is the thinnest in the world, can separate carbon dioxide from other gases with an efficiency surpassing most current filters.
Researchers induced artificial magnetic texture in nonmagnetic graphene by pairing it with a magnet, overcoming a long-standing obstacle in the field of spintronics. The findings have potential to revolutionize electronics and enable more powerful semiconductors, quantum computers, and other devices.
Graphene Flagship researchers have developed molecular bridges to overcome defects in transition metal dichalcogenide (TMD) flakes, increasing carrier mobility tenfold. This breakthrough enables the mass production of conductive inks for printed electronic devices, opening up new possibilities for flexible electronics and wearables.
Researchers developed a way to measure levels of specific carbon nanotubes in plant tissues using programmed thermal analysis. This method can detect small amounts of carbon nanotubes in leaves, stems, and roots, providing crucial insights into their environmental fate and potential human exposure.
Researchers have developed a new measurement standard for graphene analysis, allowing for fast and non-destructive quality control. The technique enables the creation of high-quality graphene products with consistent performance, accelerating large-scale production and industrialization.
Researchers discovered that twisted graphene at a 1.1-degree angle produces superconductivity, allowing for efficient electricity transport without resistance. The magic angle creates a moiré effect, trapping electrons and phonons in domains that enable superconducting properties.
Scientists at DGIST create a method to image wet cell membranes without fixing or drying them, providing detailed information on cellular molecules. The technique uses graphene to protect cells from desiccation and degradation, allowing for up to ten minutes of imaging in ultra-high-vacuum environments.
Researchers have developed a novel method for producing highly efficient X-ray detectors using 3D aerosol jet-printing, enabling improved performance of medical imaging devices. The new detectors utilize perovskites and graphene, resulting in record sensitivity and a four-fold improvement over existing technology.
Researchers have developed a novel graphene-based electro-absorption modulator with improved static and dynamic modulation efficiency. The device operates at high-speeds while maintaining low power consumption, achieving a record-breaking 39GHz bandwidth.
Researchers at the University of Sussex have created the tiniest microchips using graphene and other 2D materials through a process called 'nano-origami'. By crinkling graphene, they demonstrated that it can behave like a transistor, leading to smaller and faster devices.
Physicists have produced kagome graphene, a carbon-nitrogen compound with unusual electrical properties, including semiconducting behavior that can be switched on and off. The material's unique structure and strong electron interactions could lead to the development of sustainable electronic components.
Researchers from Graphene Flagship partners developed a wafer-scale fabrication method for graphene-based photonic devices, enabling automation and paving the way to large-scale production. The technique allows for integration into silicon wafers, offering ultra-broadband communications and ultra-high mobility of carriers.
Researchers from Graphene Flagship report a new method to integrate graphene and 2D materials into semiconductor manufacturing lines, overcoming challenges such as transferring materials between growth substrates. The technique uses standard dielectric material BCB and conventional wafer bonding equipment, enabling high-quality integra...
Researchers create a new platform for valleytronics by combining ferromagnets and twisted graphene layers, enabling the manipulation of electrons' 'valley' property. This opens up a new realm of correlated twisted valleytronics with potential applications in topological quantum computing.
Researchers have discovered a new form of magnetism in magnetic graphene, which could help understand superconductivity. The material's unique properties allow it to remain magnetic even when becoming a conductor under high pressure.
Researchers have successfully created a three-layered graphene structure that exhibits more robust superconductivity at higher temperatures than double-stacked graphene. The system allows for tuning of superconductivity by adjusting an externally applied electric field.
Scientists developed a comb-like etching regulated growth process to fabricate graphene nanoribbon arrays in a template-free CVD system. The approach allows for precisely controlling over width, edge structure, and orientation of graphene nanoribbons with high quality and uniformity.
Scientists have created a highly sensitive graphene-based terahertz detector, outperforming commercial analogs. The device's exceptional sensitivity enables faster data transfer rates, opening up prospects for applications in wireless communications, security systems, and medical diagnostics.
Researchers discover ultra-strongly coupled superconductivity in a trilayer graphene sandwich, exhibiting more robust superconductivity than its bilayer counterpart. The team can tune the material's superconductivity using external electric fields, opening new avenues for quantum information and sensing technologies.
Researchers found a way to process hexagonal boron nitride into high-quality 2D nanosheets using surfactants and water. The findings could lead to the development of antibacterial films and heat-resistant materials.
Researchers at Graphene Flagship partner Fraunhofer ISI predict that graphene will be commercially available for various industrial applications, including batteries, solar panels, electronics, and medical technologies. By 2025, market demand is expected to quadruple, with graphene being incorporated into ubiquitous commodities.
Researchers developed a stable graphene oxide nanofiltration membrane with uniform pore size to remove organic micropollutants. The study proposes combining signal amplification strategy and defect chemistry to reduce membrane pore size distribution, offering a promising method for preparing highly selective NF membranes.
A new desalination membrane was developed by laminating graphene oxide nanosheets on a porous polymer membrane, enabling highly efficient desalination with controlled ion-blocking functionality. The membrane can block around 95% of NaCl ions, making it suitable for producing freshwater from seawater.
Researchers at Brown University have created a new type of graphene nanochannel water filter that can efficiently remove contaminants from liquids. The VAGME membrane technology, developed by Robert Hurt and Muchun Liu, features narrow channels that allow small molecules to pass through while blocking larger ones.
Researchers at KIST achieved a pulsed-laser repetition rate of 57.8 GHz by inserting a graphene resonator into a fiber-optic oscillator. This breakthrough overcomes the MHz-level limit and paves the way for significant increases in data transmission and processing speeds.
Researchers at Tomsk Polytechnic University and the University of Lille developed a new material based on reduced graphene oxide (rGO) that can store 1.7 times more electrical energy, expanding its surface area through organic molecule modification under mild conditions.
Researchers at the University of Tsukuba have developed a method to produce acid-resistant catalysts using graphene, improving hydrogen gas production efficiency. The study shows that few layers of graphene allow protons to penetrate during hydrogen evolution reactions, crucial for maximizing efficiency.
Physicists at Washington University discovered a method to add electrical charge to graphene devices by layering alpha-RuCl3 flakes. This process allows for 'permanent' charge transfers without external electric fields, enabling control over the flow of electrical current.
Researchers at Rice University have developed a technique to convert pyrolyzed plastic ash into turbostratic graphene flakes, which can be added to materials like polyvinyl alcohol films and Portland cement to improve their compressive strength and resistance to water. The process has the potential to reduce energy use and cut pollutan...
Researchers at Rice University have successfully created metastable metallic nanoparticles from dichalcogenides, which can be used in electronics and optics. The process involves applying a high electrical charge to rapidly raise the material's temperature, producing a new class of highly valued materials.
Russian researchers have proposed a new synthesis method for high-quality graphene nanoribbons, which has a higher yield and is cheaper than the current method. The new approach uses nickel as a substrate and produces multilayer films of nanoribbons, which can be easily separated into individual monolayers.
A team of researchers from TUM has developed a highly efficient supercapacitor using a novel, powerful and sustainable graphene hybrid material. The new energy storage device achieves an energy density of up to 73 Wh/kg and performs better than most other supercapacitors at a power density of 16 kW/kg.
Scientists from the University of Groningen have shown that nonlinear effects can be achieved using 2D boron nitride, enabling spin signals to multiply and be measured without ferromagnets. This technology has potential applications in neuromorphic computing and spin-based electronics.
A team of researchers, led by INRS professor Federico Rosei, has developed a novel process to modify graphene's structure and properties using ultraviolet light. This breakthrough enables the creation of a band gap in graphene, making it suitable for use in electronics.
Researchers have shown that a single layer of graphene can convert light into various colors through nonlinear interactions. The team used nanometer-sized gold ribbons to squeeze light into the graphene, producing strong optical nonlinearities.
Researchers create magic-angle twisted bilayer graphene to explore interacting electrons' surprising phases of matter. They discovered the creation of unexpected and spontaneous topological states, including topological insulators with free-moving edge electrons.
A team of researchers developed a paper-based electrochemical sensor that can detect COVID-19 genetic material in under 5 minutes. The sensor uses graphene-based probes to target specific regions of the virus's RNA, providing reliable and sensitive results.
Researchers at Chalmers University of Technology have developed graphene-based heat pipes that can efficiently cool electronics and power systems. The new technology offers a significant energy efficiency contribution to data centres and other applications, reducing greenhouse gas emissions.
Columbia researchers have created graphene plasmon polaritons without an external gate or chemical dopants, using static charge between 2D atomic layers. The discovery has broad applications in nanotechnology, including biosensing and solar energy.
Research on strain engineering of 2D materials, including graphene and transition metal dichalcogenides, has shown promising results. The unique mechanical and optical properties of these materials make them suitable for optimizing device performance and enabling new photonic applications.
Direct visualization of quantum dots in bilayer graphene reveals a broken rotational symmetry with three peaks instead of concentric rings. This discovery provides crucial information for developing quantum devices based on this system.
Researchers at Tohoku University have successfully amplified 3D graphene's electrical properties by controlling its curvature. The study found that the motion of electrons on the 3D curvature enhances electron scattering, leading to unique electrical properties.
Scientists from the University of Groningen discovered how strontium titanium oxide can change its resistance based on changes in the number of electrons or accumulation of oxygen vacancies. This finding opens up new paths to memristive heterostructures combining ferroelectric materials and graphene.
A Northwestern University research team has uncovered new findings on the role of ionic interaction within graphene and water. The insights could inform the design of energy-efficient electrodes for batteries and provide backbone ionic materials for neuromorphic computing applications.
A new method developed at KAUST uses laser beams to produce uniform, three-dimensional graphene electrodes with high porosity and surface area. The electrodes exhibit excellent electrocatalytic activity and distinguish paracetamol and other compounds. Researchers plan to optimize the fabrication of sensors and expand their applications.
The discovery of Brown-Zak fermions in graphene-based superlattices offers a new perspective for electronic devices operating under extreme conditions. The high mobility of these quasiparticles allows them to travel long distances without scattering, making them suitable for ultra-high frequency transistors.
Scientists create one-dimensional array of individual molecules and precisely control its electronic structure. By manipulating individual molecules, they can create alternating charge patterns, allowing for information transfer in tiny circuits.
Researchers at the University of Tokyo have developed a new and efficient way to create nanographene, a material that is expected to revolutionize technology. The method uses an atomic force microscope (AFM) to precisely control the fabrication process, allowing for the creation of tailored nanographene formations.