Researchers developed a mechanically tough gel electrolyte to protect lithium metal anodes, significantly improving cycling stability. The achievement may facilitate practical use of high-performance lithium metal anodes in batteries.
Researchers at NIMS developed MTJ device with world's highest TMR performance through precision interfacial control, increasing sensitivity of magnetic sensors and MRAM capacity.
Researchers at NIMS found that a lithium negative electrode degrades rapidly during charge/discharge cycles, causing overpotential and short cycle life. Using a lightweight protective layer, they extended the battery's cycle life without compromising its high energy density.
Researchers recreated the brain's edge-of-chaos state to develop an AI device with high information processing performance. The device operates similarly to a neural network, producing electrical responses with spike and relaxation patterns similar to those of synaptic responses in the brain.
The device converts pressure into structural colors, imaging gaseous properties. It has applications in environmental monitoring and healthcare.
A research team at NIMS successfully synthesized a two-dimensional silicon-integrated covalent organic framework film on a metal surface. The technique may be applied to develop new materials in a bottom-up manner, with potential applications in battery materials and catalysts.
Researchers confirmed cupric oxide's multiferroic state at room temperature under high pressure using neutron diffraction. Thin films of precisely distorted crystals may exhibit such properties at ambient pressure. This discovery enables the development of next-generation memory devices and energy-efficient optical modulators.
Researchers developed a device capable of taking hundreds of times more electrochemical measurements than conventional devices, enabling the analysis of molecular mechanisms that enable microorganisms to efficiently generate electricity. The technique can also be used to analyze materials interacting with microorganisms.
A research team has developed a method to easily synthesize a self-healing polymer gel made of ultrahigh molecular weight (UHMW) polymers and non-volatile ionic liquids. The gel exhibits superior mechanical properties, high self-healing capabilities, and can be recycled via thermal processing.
Researchers developed a durable perovskite solar cell capable of generating electricity for over 1,000 continuous hours with an efficiency of more than 20%. The team improved durability by creating a water-repellent interface between the electron and hole transport layers.
Researchers developed a thermoelectric device with an array of π junctions, generating voltages over 0.5V. The device was fabricated using semiconductor microfabrication technology, enabling precise micro-scale π junctions.
Researchers developed an iron oxide-based ultraviolet-absorbing powder material, which can neutralize UV radiation and is safer than titanium dioxide. The material was found to have comparable performance and stability to TiO2 materials currently used in sunscreens.
Researchers at NIMS and Osaka University successfully fabricate nickel single crystals with minimal crystalline defects, paving the way for widespread use in heat-resistant jet engine components. The technique eliminates grain boundaries, resulting in stronger high-temperature materials.
Researchers developed a technique to synthesize porous carbon nanosheets from metal-organic frameworks, preserving catalytically active sites. The resulting nanosheets exhibit high performance in energy conversion and storage applications, including oxygen reduction reaction activities.
Researchers developed a hot-melt tissue adhesive that can heal operative wounds without causing adhesions. The adhesive, made from biopolymers, transforms into a stable gel at body temperature and eventually decomposes, preventing postoperative complications.
Researchers at NIMS developed a new material processing technique inspired by kirigami to enhance local cooling/heating performance in plastics. This technology may be used to develop thermal management technologies in flexible electronics.
Researchers have developed a magnetic refrigeration system capable of operating at extremely low temperatures to liquefy hydrogen, achieving higher efficiency than current vapor-compression refrigerators. The technology has the potential to dramatically reduce hydrogen supply costs, making it feasible for widespread adoption.
Researchers developed a data-driven robotic experiment system to identify electrolyte materials with desirable properties. They discovered a multi-component electrolyte that enhances the cycle life of lithium–air batteries, accelerating the development of next-generation rechargeable batteries.
Researchers at NIMS and JASRI have developed Er(Ho)Co2-based magnetic cooling alloys for efficient hydrogen liquefaction. The materials show excellent cyclic durability and can be used to develop a high-performance magnetic refrigeration system.
The National Institute for Materials Science has developed an oxidation-resistant copper core–nickel shell ink, significantly improving resistance to degradation. This cheaper and more stable ink may popularize printed electronics, offering comparable conductivity to conventional metallic inks.
Researchers developed an organic anti-ambipolar transistor capable of performing five different types of two-input logic gates at room temperature. This breakthrough could lead to the creation of high-performance mobile devices and electrically reconfigurable logic circuits.
Researchers from Japan and Australia developed a clay film that preserves the quality of fruits like apples by reducing oxygen supply and ethylene diffusion. The film maintained a low respiration rate without depriving the fruit of oxygen, preventing decay.
Researchers have successfully observed reversible transitions between two liquid states of water at low temperatures and high pressures, revealing the existence of two liquid waters. This finding explains anomalous behavior in low-temperature liquid water and has implications for aqueous solutions and biomolecules.
Researchers discovered electronic structure properties common to high-performance thermoelectric materials and developed a versatile materials design approach. The database of two electronic structure parameters correlated with thermoelectric conversion properties revealed relationships between chemical elements and material properties.
Researchers at NIMS have created a diamond field-effect transistor (FET) with high hole mobility, reducing conduction loss and increasing operational speed. The FET's normally-off behavior also makes it safer for electronic devices.
Researchers successfully fabricate CNT transistors with controlled quantum transport at room temperature by altering the helical structure of metallic CNTs. This breakthrough may lead to the creation of energy-efficient nanoscale electronic devices.
Researchers at NIMS and Softbank Corp. have created a lithium-air battery with an energy density of over 500 Wh/kg, significantly higher than existing lithium-ion batteries. The new battery can be charged and discharged at room temperature, showcasing the highest energy densities and best cycle life performances achieved.
Researchers at NIMS successfully fabricated high-performance neodymium magnets using machine learning, optimizing processing conditions with limited experimental data. By leveraging active learning and Bayesian optimization, they were able to achieve better magnetic properties than conventional sintered magnets.
A team of researchers from NIMS and JEOL have developed a lanthanum hexaboride (LaB6) nanowire-based field emission gun for high-resolution transmission electron microscopy. The gun achieves an energy resolution of 0.2 eV, enabling atomic-level observation.
Researchers developed an AI technique to predict material properties using a small number of experiments, improving accuracy and facilitating digital transformation in materials development. The technique uses Bayesian optimization and incorporates measurement data into machine learning models.
The National Institute for Materials Science in Japan has developed an ionic artificial vision device capable of increasing edge contrast between dark and light areas like human vision. This device uses ionic migration and interaction within solids to mimic human optical illusions without software.
A new recycling system has been developed to decompose epoxy resins in an aqueous solution of glutathione, allowing for the recovery of recyclable materials. The system shows promise for promoting the reuse of carbon fiber reinforced plastics (CFRP) and reducing environmental pollution.
Researchers have discovered that lattice softness is the dominant factor affecting a metal's ability to hydrogenate, enabling the expedited development of hydrogen storage materials. This parameter can also be used to evaluate the hydrogenation ability of intermetallic compounds.
Scientists at NIMS have developed a new method for printing high-performance thin-film transistors and three-dimensional circuits using low-temperature-catalyzed, solution-processed SiO2. The resulting devices exhibit the highest field-effect mobilities ever recorded at an operating voltage of 1 V or less.
Researchers developed a dual surface architectonic process to print submicrometer-scale circuit patterns by increasing chemical polarity on predetermined areas, enabling fine circuit lines (0.6 µm in width) and ultra-high resolution metallic nanoparticle inks.
Researchers at NIMS and Osaka University have found a way to preserve superconductivity in thin films of atomic-scale thickness when exposed to strong magnetic fields. This discovery could lead to the development of superconducting materials resistant to magnetic fields, enabling topological superconductors for quantum computing applic...
Researchers at NIMS and RIKEN successfully synthesized the longest bottlebrush polymer ever made, reaching a length of 7 μm. This achievement has significant implications for the development of flexible and low-friction polymeric materials.
Researchers at NIMS demonstrated a record-high transverse thermopower using a composite of thermoelectric and magnetic materials. The hybrid structure generated +82 μV/K positive and -41 μV/K negative thermopowers, more than 10 times larger than the previous highest recorded thermopower.
Researchers at NIMS and Tokyo Institute of Technology have discovered a non-toxic semiconductor with a direct band gap in the near-infrared range. The compound, Ca3SiO, exhibits great potential to serve as a direct transition semiconductor, potentially replacing toxic elements like mercury and cadmium in existing infrared semiconductors.
Researchers at NIMS and Hokkaido University successfully created a reusable adhesive structure inspired by insect footpads, capable of repeated attachment and detachment. The structure's strength and ease of use vary depending on direction of pull, with potential applications in industrial robots and outdoor equipment.
A team of scientists successfully fabricated a giant magnetoresistive device comprising single-crystal Heusler alloys on a practical silicon substrate. The device performs comparably to the one grown on a heat-resistant MgO substrate, overcoming challenges in high-performance magnetoresistive devices.
Researchers developed a boron-doped anisotropic Sm(Fe0.8Co0.2)12 thin film with exceptional magnetic properties. The compound showed a large coercivity of 1.2 T and a remanent magnetization of 1.5 T, outperforming previously studied Sm(Fe0.8Co0.2)12 compounds.
Researchers at NIMS and AIST have developed a small, energy-efficient sensor that can continuously monitor ethylene gas levels in fruits and vegetables, allowing for optimal transportation and storage schedules. This new sensor enables accurate estimation of ripening progression and potential reduction of food waste.
Researchers at NIMS developed a solid material that slowly releases hydrogen sulfide (H2S) and nitric oxide (NO), which can induce physiologically favorable effects. This material will facilitate the medical use of these gases, overcoming storage and concentration difficulties.
A research team created a neuromorphic network composed of metallic nanowires, exhibiting electrical characteristics similar to human brain functions. The team found that the network's fluctuation-based functionalities mimic memorization, learning, and forgetting processes.
A new study by NIMS researchers reveals that a Si anode composed of commercial Si nanoparticles in solid electrolytes exhibits excellent electrode performance, approaching that of film electrodes. This breakthrough enables low-cost and large-scale production of high-capacity anodes for all-solid-state Li batteries.
Researchers at NIMS and AIST created a bendable, stretchable vibration-powered device using a liquid electret material. The device can convert subtle vibrations into electrical signals, making it suitable for self-powered heartbeat and pulse sensors.
Researchers successfully applied machine learning to discover innovative materials with desired properties from limited data. The study identifies thousands of promising virtual polymers with high thermal conductivity, outperforming typical polyimides.
Scientists visualized the distribution and optical behavior of magnesium (Mg) ions in Gallium Nitride (GaN) using advanced microscopy techniques. This breakthrough enables mass production of p-type GaN semiconductors, a crucial component for high-performance energy-saving devices.
Researchers developed a method to design metamaterial structures with optimum thermal radiation performance, using machine learning and electromagnetic calculations. The new nanostructure demonstrated an exceptionally narrow thermal emission spectral band, exceeding conventional limits.