Articles tagged with Nanoribbons
Researchers at Nagoya University have built a graphene nanoribbon that can switch its twist using a natural solvent, opening opportunities for new optical switches, chemical sensors, and spintronic components. The discovery uses a natural chiral liquid to lock in a single spiral direction, with a high degree of helical bias.
Researchers demonstrate magnetic behavior of PNRs at room temperature and show how these properties can interact with light. The study reveals macroscopic magnetic properties in solution and thin films, akin to classic magnetic metals.
Researchers at National University of Singapore developed novel graphene nanoribbon (JGNR) with unique zigzag edge, enabling one-dimensional ferromagnetic spin chain. This design could enable next-generation multi-qubit systems for quantum computing and advance carbon-based spintronics.
Scientists create sheets of transition metal chalcogenide 'cubes' connected by chlorine atoms, exhibiting high catalytic efficiency for hydrogen generation. The discovery opens up a new route to assembling nanosheets with unique electronic and physical properties.
Researchers found that applying pressure to titanium and sulfur nanoribbons transforms them into materials with zero energy loss, enabling efficient power transmission. The discovery paves the way for developing new superconductors that can operate at higher temperatures.
Researchers at Tel Aviv University developed a method to grow ultra-long and narrow graphene nanoribbons with semiconducting properties, opening doors for technological applications in advanced switching devices and spintronic systems. The study's success demonstrates a breakthrough in carbon-based nanomaterials.
The researchers created nanoribbons made of phosphorus and tiny amounts of arsenic, which were able to conduct electricity at high temperatures. The arsenic-phosphorus ribbons have also turned out to be magnetic, opening up possibilities for quantum computers.
Researchers measured the Young's modulus of molybdenum disulfide nanoribbons as a function of width, revealing an inverse relation below 3nm. This increases edge strength due to electron transfer and Coulombic attraction.
Researchers have confirmed a novel quantum topological material for ultra-low energy electronics, reducing energy consumption by a factor of four. The study reveals the potential of zigzag-Xene-nanoribbons to make topological transistors with robust edge states and low threshold voltage.
Researchers at Tokyo Metropolitan University have developed a scalable way to assemble nanowires into nanoribbons, a promising material for sophisticated electronic devices and catalysts. The method involves weaving together nanowires with chalcogen atoms and heat, resulting in atomically thin ribbons with unique properties.
Researchers at Lawrence Berkeley National Laboratory developed a method to stabilize graphene nanoribbons and directly measure their unique magnetic properties. By substituting nitrogen atoms along the zigzag edges, they can discretely tune the local electronic structure without disrupting the magnetic properties.
Researchers have successfully incorporated phosphorene nanoribbons into new types of solar cells, achieving an efficiency above 21%, comparable to traditional silicon-based solar cells. The unique properties of PNRs, including improved hole mobility, enable the creation of high-performance optoelectronic devices.
Scientists investigate 'bite' defects in armchair and zigzag graphene nanoribbons, finding they can disrupt electronic transport but also yield spin-polarized currents. The study aims to minimize the detrimental effects of these defects on charge transport for next-generation nanotechnologies.
Graphene nanoribbons exhibit structural disorder due to missing carbon atoms, known as 'bite' defects. These imperfections degrade electronic device performance but offer promising opportunities for spintronic applications with unique magnetic properties.
A novel graphene nanoribbon sensor has been developed to detect atoms and molecules, utilizing the quantum mechanical tunnelling effect. The sensor's sensitivity is particularly strong when adsorbates accumulate on its surface.
Researchers successfully synthesize armchair graphene nanoribbons (AGNRs) on Cu(111) via lateral fusion of poly(para-phenylene). Oxygen introduction reduces temperature required for reaction, opening up new avenues for surface chemistry. This breakthrough could benefit various dehydrogenation reactions in on-surface synthesis.
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.
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.
Researchers have discovered a way to produce nanoribbons of TMDs, which are more abundant and cheaper than platinum, boosting their catalytic efficiency. The new catalyst could make hydrogen production more economical and play a key role in the transition away from fossil fuels.
Researchers have developed an on-surface synthesis method to create graphene nanoribbons with precise electronic properties, advancing quantum devices. The approach uses a titanium dioxide surface and achieves atomic-scale precision, decoupling the material from the substrate and enabling unique quantum properties.
A new synthesis method for crystalline graphitic nanoribbons has been developed, utilizing pressure-induced polymerization of 1,4-diphenylbutadiyne. The resulting product is a graphene nanoribbon with an armchair edge and controlled width.
A team of researchers at UC Berkeley has created the last tool in the toolbox for building working carbon circuits, a metallic wire made entirely of carbon. This breakthrough enables the creation of more efficient carbon-based transistors and ultimately, computers that can switch many times faster and use less power.
Researchers at the University of Texas at Austin have developed a method to fabricate large quantities of Molybdenum Disulfide (MoS2) in a controlled and tunable dimension, making it an attractive material for water treatment and various applications. The process reduces production costs by 3,000 times compared to previous methods.
Researchers at KAUST developed a novel approach to grow single-crystal transition metal dichalcogenide (TMD) nanoribbons using surface templates and ledge-directed growth. The resulting TMD nanoribbons exhibited defect-free structures and could be transferred onto new substrates without damage.
Scientists successfully synthesized a 17-carbon wide graphene nanoribbon with the smallest bandgap seen to date among known graphene nanoribbons. This breakthrough has significant implications for the development of new electronic devices.
Researchers at MLU, UT, and ORNL have successfully produced graphene nanoribbons directly on semiconductor surfaces, overcoming previous limitations. This breakthrough enables customization of the material's properties, paving the way for potential applications in storage technology, semiconductor industry, and quantum computing.
Researchers from Kiel and Copenhagen developed a new computational model to simulate the detailed behavior of electrons in graphene nanoribbons. The model predicts that correlation effects due to electron repulsion have a dramatic influence on local energy spectrum, enabling precise control over electronic properties.
Researchers have developed a general method to prepare ultrathin MOF NRBs with high surface area, highly active surface and excellent catalytic efficiency. The proposed method is simple, efficient and versatile, which could be used for the preparation of a series of ultrathin MOF NRBs.
Scientists at UCL have successfully produced individual 2D phosphorene nanoribbons with unique properties, opening up new avenues for applications in batteries, solar cells, thermoelectric devices, and more. The ribbons' flexibility and scalability make them promising for transforming industries.
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.
A material called graphene nano-ribbons has different electronic properties depending on its shape and width, allowing for the creation of tailor-made semiconductors, metals or insulators. The ribbons form a chain of interlinked quantum states with adjustable electronic structure.
Researchers have discovered that nanoribbons can trap individual localized electrons, potentially enabling new quantum materials with unique electronic and magnetic properties. The discovery was made by combining theoretical predictions with experimental synthesis, using topological insulators as a starting point.
Researchers created a machine learning technique to categorize different molecules based on the nano-sized shapes they form. The approach could help materials scientists identify suitable precursor molecules for synthesizing target nanomaterials.
Researchers have developed a method to analyze electron flow in graphene nanoribbons using a simplified physics model. This approach uses a matching method to calculate transmission properties of electrons through the junction.
Researchers at UC Riverside have developed a new 1D material that can conduct high current densities, paving the way for nanometer-scale transistors and circuits. The material, zirconium tritelluride, surpasses conventional copper interconnect technology by 50 times.
Researchers investigated the oxidative unzipping mechanism of MWCNTs, revealing an intercalation-driven process. The study showed that controlling the KMnO4/MWCNT ratio and reaction time allows for the production of GNRs with varying properties, from multi-layered graphenic nanoribbons to single-layered GONRs.
Researchers at Rice University have optimized nanomaterials for fuel-cell cathodes, revealing that nitrogen-doped carbon nanotubes and graphene nanoribbons can replace platinum to boost fuel cell efficiency. The study showed that the right balance of binding energy is crucial for good catalytic performance.
Researchers develop new method to produce nanoribbons of graphene, essential for smaller electronic devices. The process uses ultraviolet light and 600-degree heat to create narrow strips of graphene with a bandgap.
Researchers have successfully grown graphene nanoribbons with a regular armchair edge, exhibiting a precisely defined energy gap. This enabled the integration of these structures into nanotransistors, overcoming previous challenges related to dielectric layers and ribbon alignment.
Researchers at Aalto University developed a chemical method to create graphene nanoribbons with embedded electronic components, including diodes and tunnel barriers. The precision of the structures was achieved through atomic-level control over the chemical reaction process.
Scientists at ORNL and NCSU report growing graphene nanoribbons without a metal substrate, enabling controlled creation of interfaces with different electronic properties. This breakthrough addresses limitations in graphene's application in digital electronics.
A recent study demonstrates the integration of atomically precise graphene nanoribbons (APGNRs) onto nonmetallic silicon substrates, overcoming a significant challenge in chip manufacturing. The 'bottom-up' approach allows for atomic-level control and uniform electronic properties.
Graphene nanoribbons exhibit properties similar to those of biological materials when in solution, forming folds and loops. The researchers found that their rigidity increases as oxide molecules are removed, making them suitable for designing and fabricating GNR-biomimetic interfaces.
Scientists have successfully fabricated monolayer graphene nanoribbons with well-defined zigzag edges, exhibiting high electron mobility and clean energy band gaps. This breakthrough could enable large-scale processing of high-quality graphene nanoribbons for spintronic devices.
Researchers at Tohoku University have synthesized wafer-scale and high-yield suspended graphene nanoribbons using a bottom-up approach, enabling the integration of over 1 million ribbons with high yield.
Researchers at Rice University have developed a graphene-based de-icer that can prevent ice formation above 7 degrees Fahrenheit, making it suitable for large applications like aircraft and power lines. The material is also conductive and can be heated with electricity to melt ice and snow in colder conditions.
Researchers at Rice University developed a method to treat composite materials with microwaves, increasing their stability and strength in wellbores for oil and gas production. The treatment involved combining graphene nanoribbons with thermoset polymers and heating them with low-power microwaves.
Researchers at the Swiss Federal Laboratories for Materials Science and Technology (EMPA) have successfully synthesized graphene nanoribbons (GNR) with perfectly zigzagged edges using a perfected manufacturing process. This breakthrough enables the creation of spintronic devices that can efficiently switch on and off with minimal energ...
Researchers have synthesized graphene nanoribbons with perfect zigzagged edges, allowing for the creation of spin barriers and filters. This enables the design of ultra-energy-efficient transistors and spintronic devices with new components, including magnetic data storage devices.
Researchers discovered graphene's exceptional lubricity, enabling frictionless movement between mechanical parts. The study suggests graphene could revolutionize coatings and electromechanical devices by reducing energy consumption and increasing service life.
A thin coating of graphene nanoribbons in epoxy has been proven effective at melting ice on a helicopter blade. The coating, developed by Rice University, may be an effective real-time de-icer for aircraft and other surfaces exposed to winter weather, reducing the need for glycol-based chemicals.
Researchers have created bismuth telluride nanoribbons that exhibit topological transport and can be controlled using a magnetic field. The discovery could lead to the development of new spintronic devices and quantum computers.
Researchers at Berkeley Lab discovered unique thermal properties in black phosphorus nanoribbons, with high directional anisotropy in thermal conductivity at temperatures greater than 100K. This finding has implications for designing energy-efficient devices, as the lattice orientation of patterns can affect thermal conductivity.
Graphene nanoribbons are grown on germanium crystals using chemical vapor deposition, providing a straightforward way to make semiconducting nanoscale circuits. The researchers confirmed the presence of graphene nanoribbons growing on the germanium crystal faces (1,1,1), (1,1,0) and (1,0,0).
Researchers at Umeå University and UC Berkeley have developed a method to synthesise novel molecular nanoribbons that resemble graphene but in molecular form. The nanoribbons exhibit ideal properties as electronic highways for organic solar cells, with dimensions smaller than 10-15 nanometres.
Researchers at the University of Basel have synthesized boron-doped graphene nanoribbons with controlled band gaps, enabling the development of highly sensitive gas sensors for nitrogen oxides. The material's chemical properties were characterized using atomic force microscopy, revealing high selectivity towards adsorption.
University of Wisconsin-Madison researchers have discovered a way to grow graphene nanoribbons directly on germanium semiconductor wafers, overcoming precision and edge quality issues. The technique enables the mass production of nanoribbons with desirable semiconducting properties for high-performance electronics.
The US Navy is developing narrow strips of graphene called nanoribbons to improve power control systems in ships, smartphones and electronic devices. Graphene nanoribbons can conduct electricity with reduced heat loss and added strength compared to traditional materials.
Researchers at Rice University have discovered a method to control the edge properties of graphene nanoribbons by manipulating the conditions under which they are pulled apart. This allows for the creation of semiconducting graphene with desirable electronic properties, opening up new possibilities for applications in modern electronics.
Researchers have successfully created heterostructures with varying widths of graphene nanoribbons using molecular self-assembly. This breakthrough could lead to the deployment of graphene in commercial electronic applications, taking advantage of its unique properties.