Articles tagged with Graphene
Scientists have developed a model for predicting nanocrystal shapes when sandwiched between graphene layers. The research uses scanning tunneling microscopy and theoretical modeling to explain the data, showing that the top layer of graphene resists upward pressure from growing metal islands, flattening them.
UTSA engineers develop graphene-based logic device using spintronics to improve energy efficiency in battery-dependent devices. The technology aims to reduce power consumption and enhance quantum computing capabilities.
Researchers have discovered a new method to grow large graphene single crystals with a growth rate of up to 79 μm s-1 on liquid Cu, exceeding that on solid Cu. This is made possible by the unique properties of liquid metal, which accelerates nucleation and promotes fast growth.
A team of MU researchers used deep learning to predict material structures and their properties in graphene, a strong material. The study enables the design of new materials with specific properties, such as LEDs, touch screens, smartphones, and solar cells.
A team at the University of Delaware has engineered a silicon-graphene device that can transmit radiofrequency waves in less than a picosecond, enabling faster communications. The device combines the benefits of silicon and graphene, with improved carrier mobility and electrical properties.
Researchers have developed a CRISPR-based graphene biosensor that enables digital detection of DNA without amplification, allowing for fast and accurate genetic mutation testing. The system uses CRISPR's genome-searching capability and graphene's sensitivity to detect target genes without amplification.
Scientists have observed a new mode of heat transport in graphite, known as second sound, which behaves like sound when moving through the material. At temperatures above 80K, heat travels through graphite as a wave, cooling points instantly and carrying heat away at close to the speed of sound.
Scientists at the University of Basel create a three-layer superlattice using graphene and boron nitride, producing new electronic material properties.
Researchers at University of Minnesota develop graphene-based device that detects protein structures with near-perfect efficiency, leading to improved diagnosis and treatment of diseases. The device uses plasmons to generate local electric fields, enabling detection of single layers of protein molecules.
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.
The researchers observed an unusual quantum Hall effect in bulk graphite, which is typically only possible in two-dimensional systems. The material behaves differently depending on whether it contains odd or even number of graphene layers, with surprising results persisting for hundreds of layers thick.
GraphON is a conductive coating that can be manufactured cheaper and easier than comparable products, with greater control over performance. It has potential uses in electrostatically dissipative coatings, electromagnetic interference shielding, electrical heating and conductive coatings.
Researchers from Graphene Flagship partner DTU developed a graphene 'sandwich' by encasing graphene with insulating hexagonal boron nitride, allowing them to achieve higher electrical currents and control the material's properties. This breakthrough enables the creation of nano-electronics with small dimensions.
A team of researchers from Denmark has successfully created a graphene-based nanoscale electronics by encapsulating graphene inside hexagonal boron nitride. The new technique allows for the control of graphene's band structure, enabling the design of components and devices with precise electrical properties.
Graphene-based wearables track UV exposure, heart rate, hydration and oxygen saturation, while also enabling night vision through camera sensors and spectrometers. These technologies have potential applications in healthcare, food inspection and surveillance.
Researchers at Rice University have developed composites of laser-induced graphene that can be used for wearable electronics, heat therapy, water treatment, anti-icing, and antimicrobial surfaces. The new composites were created by infusing LIG with materials like plastic, rubber, and wood, and show improved mechanical robustness.
A research team at Tohoku University has created a new material for supercapacitors with exceptional stability under harsh conditions, exceeding conventional activated carbons by 2.7 times in voltage stability.
Researchers at the University of Groningen have produced devices with stable Germanene, revealing its electronic properties. The material exhibits insulating, semiconducting, and metallic conducting behavior depending on heat treatment, making it suitable for spintronic device applications.
Rice University researchers have developed a nano-infused ceramic that can act as a sensor for structures, monitoring their health and reporting damage. The ceramic's unique electrical properties make it suitable for self-sensing applications in buildings, bridges, and aircraft.
Researchers from the University of Exeter have developed a new graphene biosensor that can detect molecules of common lung cancer biomarkers. The device has the potential to revolutionize existing electronic nose devices and provide an early-stage lung cancer diagnosis through a convenient and reusable breath test.
By combining experimental results with simulations, researchers can gain insights into the atomic structure of 2D materials like graphene. This breakthrough could lead to the development of more efficient batteries and other electronics.
Researchers at FAU have successfully produced large, stable pieces of graphene with a zigzag edge pattern. This breakthrough enables the control of shape and periphery, which is crucial for investigating electronic properties in detail.
Researchers at Brown University have discovered that graphene crinkles can be used to assemble molecules into linear arrays, known as 'molecular zippers'. This phenomenon enables easier manipulation and study of molecules, which could have applications in studying biomolecules like DNA and RNA.
Researchers have discovered that integrating graphene with metal in circuits reduces contact resistance impact from humidity, enabling more efficient sensors. This breakthrough could lead to significant cost reduction and better environmental monitoring.
A team of researchers from FAU Erlangen-Nürnberg has successfully synthesized large, stable pieces of zigzag-shaped graphene using a novel method. The process delivers high yields and is suitable for large-scale production, paving the way for further investigation into the material's electronic properties.
Researchers have developed a soft and moldable graphene oxide material called GO dough that solves several challenges in the graphene manufacturing industry. This innovative material can be shaped and reshaped into free-standing structures without combustion risks or heavy packaging issues.
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...
Researchers have developed a graphene-based sensor that can detect brain activity below 0.1 Hz, unlocking new insights into epilepsy and brain function. This technology could lead to novel multiplexing strategies, enabling unprecedented mapping of low-frequency neural signals.
Researchers studied graphene and related materials' physicochemical characteristics and biological effects, finding varying properties lead to differing toxicity. The study provides a solid guide for safe use of these materials, essential for widespread utilization.
Researchers found that water seeps between graphene layers at 22% relative humidity, modifying the material's interaction. The study suggests that graphene-based devices may function differently in humid environments, highlighting the need to record relative humidity in future experiments.
Researchers have characterized graphene nanoribbons grown in both configurations on the same wafer, opening up a path towards high-speed, low-power nanoelectronics. The unique properties of graphene nanoribbons are closely related to their precise structure and symmetry.
Distinguished Professor Ruoff has been recognized by Clarivate Analytics as a probable winner of the physics prize for his work on carbon-based materials, including capacitive energy storage and supercapacitors. He is one of 17 top-tier scientists selected globally.
Researchers at Washington University in St. Louis have developed a novel membrane technology that purifies water while preventing biofouling using bacterial nanocellulose and reduced graphene oxide. The new membrane can filter water twice as fast as commercially available ultrafiltration membranes and is environmentally friendly.
The researchers have produced a catalog of exact sizes and shapes of holes that form in 2-D sheets when atoms are missing from the material's crystal lattice. This new catalog could help open up various potential applications, including filtration, chemical processing, DNA sequencing and quantum computing.
Researchers have explored graphene family of materials for their potential use in targeted drug delivery and cellular imaging. These nano-biomaterials exhibit excellent physicochemical properties, making them suitable for various biomedical applications.
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 at Lobachevsky University develop theory for ultrafast photon control in integrated microchips, improving performance and contributing to the development of photon technologies. They rule out possibility of amplifying light waves by changing electron concentration in graphene.
Researchers at NYU Tandon School of Engineering have developed a physics-based model that reveals the relationship between structural defects in graphene and electrode sensitivity. By optimizing point defects in number and density, they can create an electrode up to 20 times more sensitive than conventional ones.
Research reveals pristine graphene can efficiently convert light into electricity with no special junctions, leading to potential improvements in solar panels and photodetectors. The unique electronic structure of graphene allows for long-distance energy transfer without excess electronic charge.
Researchers at University of Illinois Chicago used graphene to identify cerebrospinal fluid from patients with ALS, multiple sclerosis, or no neurodegenerative disease. The study found unique changes in graphene's vibrational characteristics depending on the patient's condition.
A new graphene-based sensor design can detect multiple substances simultaneously, including bacteria and pathogens, offering improved food safety. The sensor's high sensitivity and adjustable properties make it suitable for a wide range of applications.
Researchers have discovered a way to create artificial magnetic fields using graphene sheets with a twist, enabling the control of electronic properties through electrical fields. This breakthrough has clear technological potential and could lead to new materials with unique properties.
Researchers identify silicon contamination in graphene, which has hindered its performance. By removing contamination, the material's full potential is revealed, doubling its performance and enabling the creation of high-capacity supercapacitors and sensitive humidity sensors.
Researchers at NIST have conducted simulations suggesting that graphene can be stretched to create a tunable ion filter, increasing ion flow by up to 1,000 percent. This could have applications in nanoscale mechanical sensors, drug delivery, water purification and sieves for ion mixtures.
Brown University researchers have developed a new smart material made from alginate and graphene oxide that is stiffer and more fracture-resistant than alginate alone. The material can also become softer or stiffer in response to different chemical treatments, making it useful for dynamic cell cultures and coatings.
Scientists have successfully grown large, good-quality monatomic sheets of germanene using an innovative annealing technique. This breakthrough could pave the way for a new generation of electronics with improved energy efficiency and reduced size.
Rice University scientists have developed a new epoxy compound that combines graphene foam for improved conductivity and strength. The composite material is substantially tougher than pure epoxy and far more conductive, while retaining its low density.
A lack of production standards in the graphene market has led to inferior products being sold as high-grade. NUS researchers developed a reliable method for testing graphene quality, finding that most samples contained less than 10% real graphene flakes.
Scientists improved graphene's response to light by 600% using self-assembling wire-like nanostructures. The new design enhances light absorption and charge transfer, enabling faster detection of low-level light in various applications.
Researchers have identified a flat band area in graphene that is a prerequisite for superconductivity, but requires further assistance to achieve. The discovery uses high-resolution angle-resolved photoemission spectroscopy (ARPES) and could lead to controlled band structure manipulation.
A team of scientists and engineers at the University of Illinois has developed a new technique for creating nanoscale-size electromechanical devices by using graphene as an etch stop. This allows for precise patterning of two-dimensional structures, enabling the creation of complex devices with improved performance.
Researchers at Linköping University have developed a method to produce graphene with several layers in a controlled process, enabling the conversion of carbon dioxide and water into renewable fuel. The graphene also exhibits superconducting properties when arranged in a special way.
Researchers have successfully created complex multi-principle element transition metal dichalcogenides with unique quantum phenomena. By combining layered TMDCs using ball-milling and reactive fusion, they have demonstrated the possibility of forming 3D-heterostructured architectures with tunable properties.
A Rochester Institute of Technology researcher is collaborating on a multi-university project exploring quantum science in levitated mechanical systems. The project aims to create and sustain a quantum state with levitated optomechanics using advanced sensing designs based on the 'optical tweezers' technique.
The special issue explores composite materials' potential for sustainable applications, including biodegradable composites for packaging and recycling of plastic waste.
Bedimensional, a Graphene Flagship start-up, has received €18 million in private investment to develop new applications of graphene and related materials. The investment will enable the company to build a new headquarters with dedicated facilities for graphene production and research.
Researchers have discovered a new class of 2D magnetic materials with promising applications in electronics. These ultra-thin layers exhibit unique properties, such as ferromagnetism, antiferromagnetism, and magnetism control, which can be manipulated electrically or optically.
Researchers applied polydopamine as an infiltrate binder to achieve high mechanical and electrical properties in graphene-based liquid crystalline fibers. The bio-inspired defect engineering overcomes the limitations of conventional graphene fibers, making it suitable for flexible electronics, textiles, and wearable sensors.
MIT researchers have developed a method to control the fracturing process of atomically-thin, brittle materials, directing it to produce miniscule pockets of predictable size and shape. Embedded inside these pockets are electronic circuits and materials that can collect, record, and output data.
Scientists have successfully modified arsenene with chloromethylene groups, improving its semiconducting properties. The modified material exhibits strong luminescence and electronic properties, making it attractive for optoelectronic applications.