Articles tagged with Semiconductors
Researchers at MIT have successfully grown layers of 2D transition metal dichalcogenide materials directly onto silicon chips at low temperatures, paving the way for denser and more powerful computer chips. This new technology allows for faster and more uniform growth of these materials, enabling larger-scale integration.
Researchers demonstrate probabilistic computing's capabilities by simulating networks of stochastic nanodevices to solve specific NP problems. The simulations agree with theoretical solutions, indicating the potential for scaling up this approach.
The article discusses the fabrication and applications of van der Waals heterostructures (vdWHs), which have unique properties and potential for exploring condensed matter physics. Various strategies for fabricating vdWHs were developed in the past decade, leading to promising functionalities in diverse fields.
Scientists have successfully engineered multi-layered nanostructures of transition metal dichalcogenides to form junctions, enabling the creation of tunnel field-effect transistors (TFETs) with ultra-low power consumption. The method is scalable over large areas, making it suitable for implementation in modern electronics.
Researchers have developed a novel photoelectrochemical ultraviolet photodetector that can detect two types of ultraviolet light using a multilayered nanostructure. The detector's performance can be regulated through light intensity and external bias, enabling easy adaptation to environmental changes.
Researchers at KAIST have successfully developed a new X-ray microscope technology that can overcome the resolution limitations of existing microscopes. This breakthrough enables high-resolution imaging of nanoscale structures, with a resolution of 14 nm, which is comparable to that of electron microscopes. The technology uses random d...
The MSU facility will provide several thousand additional hours of chip testing capacity annually, addressing the US national shortfall in advanced microelectronics testing. The K500 cyclotron will be used to test electronic components for space-based applications where levels of ionizing radiation are higher than at Earth's surface.
A recent project at KAUST has reported multifunctional logic gates that offer users a range of hardware security advantages, including tamper protection and watermarking. The gates use spintronic devices called magnetic tunnel junctions, which can be easily switchable and obscure their layout, making them hard to reverse engineer.
Researchers predict that layered electronic 2D semiconductors can host a quantum phase of matter called the supersolid. A solid becomes 'super' when its quantum properties match those of superconductors, simultaneously having two orders: solid and super. The study reports the complete phase diagram of this system at low temperatures.
Researchers at King Abdullah University of Science & Technology (KAUST) successfully integrated two-dimensional materials on silicon microchips, achieving high integration density, electronic performance, and yield. The resulting hybrid devices exhibit special electronic properties that enable low-power consumption artificial neural ne...
Scientists at Tokyo University of Science generate vector vortex light beams and imprint their structure on electron spins in a semiconductor solid, creating helical spatial structures. This breakthrough enables higher information storage capacity by exploiting effective magnetic fields alongside structured light beams.
Researchers at Pohang University of Science & Technology have created a high-performance AI semiconductor device using IGZO, achieving over 98% accuracy in handwritten data classification. The new device's design enables efficient linear and symmetric programming, making it suitable for large-scale AI applications.
Researchers at The University of Tokyo have developed a programmable gate driver for solid-state electronic transistor switches, reducing switching loss under changing input current and temperature fluctuations. The device includes automatic timing control, allowing for single-chip integration and real-time control.
Researchers stack ultrathin monolayers of semiconductors to create a moiré lattice that traps individual electrons in tiny slots. This configuration allows for continuous tuning of electron mass and density, leading to the observation of heavy electrons and potential emergence of a 'strange' metal phase.
The new technology enables compact, low-power, fast, and energy-efficient devices for fibre-optical communications, sensors, and future quantum computers. This breakthrough could lead to advancements in applications such as 3D imaging for autonomous vehicles and photonic-assisted computing.
Researchers at Sandia National Laboratories have demonstrated the ability to dynamically steer light pulses from conventional, incoherent light sources using a semiconductor device. This breakthrough has significant implications for applications such as holograms, remote sensing, and self-driving cars.
University of Minnesota-led researchers developed a new process for making spintronic devices with unmatched energy efficiency and memory storage density. The breakthrough enables smaller devices to be scaled down to sizes as small as five nanometers.
A team of researchers has demonstrated the ability to dynamically steer incoherent light pulses using a semiconductor device, paving the way for applications such as holograms, remote sensing, and self-driving cars. The technique uses metasurfaces to manipulate light waves, offering a low-power alternative to traditional laser beams.
Researchers have demonstrated an easy method to alter VCSELs to reduce speckles, improving their suitability for applications like lighting and holography. By changing the device shape, they introduced chaotic behavior, allowing more modes to be emitted and reducing speckle density.
Researchers have successfully developed chemically stable, tunable-bandgap 2D nanosheets from perovskite oxynitrides, opening new possibilities for sustainable technologies such as photocatalysis, electrocatalysts, and electronics. The nanosheets exhibit superior proton conductivity and excellent photocatalytic activity.
Researchers developed a self-driven lab, AlphaFlow, that uses AI to optimize complex chemical reactions and discover new materials. The system significantly reduces the time needed to develop new chemistries from months to hours.
A team led by Xueyan Song at West Virginia University has created an oxide ceramic material that solves a longstanding efficiency problem plaguing thermoelectric generators. The breakthrough achieved record-high performance, opening up new research directions to further increase performance and enabling large-scale waste heat recovery.
Researchers developed memristors based on halogenated perovskite nanocrystals for more powerful and energy-efficient computing. Inspired by the human brain's synapses, these components combine data storage and processing, reducing energy consumption.
The new homogeneous catalyst enables the direct synthesis of hydrogen peroxide with improved efficiency and safety. The process requires only one step and no separation of gases from the reaction flask.
Scientists have identified a dozen new materials with high carrier mobility in 2D semiconductors, which could revolutionize electronic device capabilities. The discoveries were made using quantum-mechanical calculations and are an exception to the conventional wisdom that finding such materials is extremely challenging.
Scientists from the University of Groningen develop complex oxide devices for energy-efficient computing, including magneto-electric spin-orbit and memristive devices. These materials have potential applications in novel computing architectures, such as random number generators.
Scientists at RMIT University and partner organisation confirm electric control of superconductivity and giant anomalous Hall effect in the kagome metal CsV₃Sb₅. Proton intercalation modulates carrier density, allowing for tuning of Fermi surfaces and potentially realizing exotic quantum phase transitions.
Researchers developed a new method for removing bisphenol pollutants and lignin derivatives using activated peroxymonosulfate and photothermal technology. The material, C-defects/C-O band-modified ultrathin porous carbon nitride, has shown faster reaction rates and improved oxidizing ability compared to conventional materials.
The article reviews the outlook of atomic layer deposition (ALD) based oxide semiconductor thin film transistors (TFTs), highlighting four benefits: in-situ composition control, vertical structure engineering, chemical reaction and film properties, and insulator and interface engineering. Despite these advantages, challenging issues re...
Carolina researchers have engineered silicon nanowires that can convert sunlight into electricity, splitting water into oxygen and hydrogen gas. This innovative design enables the production of a greener alternative to fossil fuels, making it more competitive with traditional energy sources.
A new crosslinking strategy for organic-inorganic hybrid dielectric layers improves TFT performance by reducing leakage current and increasing stability. This approach enables low-power driving and easy manufacturing through solution processing, contributing to next-generation flexible electronic devices.
A research group led by Osaka Metropolitan University has proven that 3C-SiC exhibits high thermal conductivity, equivalent to the theoretical level. The crystal purity and quality of the material were found to be key factors in unlocking its high thermal conductivity.
Researchers have visualized the structural dynamics of 2D perovskite materials under light-induced excitation, revealing a transient lattice reorganization towards a higher symmetric phase. The study demonstrates the potential to tune the interaction between perovskite lattices and light.
Researchers at City University of Hong Kong have developed a lead-free perovskite photocatalyst for highly efficient solar energy-to-hydrogen conversion. The study uncovers the interfacial dynamics between halide perovskite molecules and electrolytes, enabling better photoelectrochemical hydrogen generation.
Engineers at Diraq and UNSW Sydney discovered a new way to precisely control single electrons in quantum dots using electric fields, which is less bulky and requires fewer parts. This breakthrough technique can help achieve the goal of fabricating billions of qubits on a single chip for commercial production.
A team of Clemson researchers has developed a new method to evaluate the efficiency of thermoelectric materials, called the figure-of-merit (zT), which considers temperature, electrical conductivity, and thermal conductivity. The new method uses Peltier cooling to measure zT with higher resolution and accuracy.
Researchers from City University of Hong Kong and Australia developed a new method to enhance charge mobility in metal oxide catalysts, leading to improved water splitting efficiency. The method involves phosphorus doping, which reduces energy losses and increases charge separation efficiency.
Chemists from Rice University and the University of Texas at Austin found that increasing charge-acceptor molecules on semiconducting nanocrystals can lead to reduced electron transfer rates in hybrid materials. The study highlights the importance of considering ligand-ligand interactions when designing light-activated nanomaterials fo...
Researchers at Simon Fraser University have identified emerging alternative semiconductors that can enable self-powered, eco-friendly smart sensors for the Internet of Things. These printable electronics have a lower carbon footprint and cost compared to conventional semiconductor technologies.
Researchers found no evidence of a critical mass needed to start and maintain new research fields. Instead, pioneering regions with early investment can establish dominance. However, late-comers face significant costs to catch up, as seen in China's semiconductor science, where strategic interventions over decades led to a dominant role.
Researchers from City University of Hong Kong developed a novel device-engineering strategy to suppress energy conversion loss in organic photovoltaics, achieving PCE over 19%. The discovery enables OPVs to maximize photocurrent and overcome the limit of maximum achievable efficiency.
Georgia Tech researchers developed a new nanoelectronics platform based on graphene, enabling smaller devices, higher speeds, and less heat. The platform may lead to the discovery of a new quasiparticle, potentially exploiting the elusive Majorana fermion.
University of Houston researchers have made a groundbreaking discovery in cubic boron arsenide, demonstrating exceptional high carrier mobility. This finding has significant implications for the development of efficient semiconductors, with potential applications in various electronic and optical fields.
Researchers at ARC Centre of Excellence for Transformative Meta-Optical Systems have developed a miniaturized optical system that can be integrated on a chip, allowing for the creation of 3D holograms. This technology has the potential to replace current 2D imaging, enabling less invasive surgeries and better surgical outcomes.
Researchers at Ruhr-University Bochum have developed a novel approach to water-based circuits using laser technology. The method creates an ultra-fast liquid switch that can conduct electricity at terahertz frequencies, similar to metals.
Researchers created a protective coating of glass, gallium-oxide to reduce vibrations in graphene devices. The oxide improves device performance and provides a new method of protection.
Researchers at USTC found that aerating O2 into the semiconductor reaction system improves H2O2 utilization and converts methane to liquid-phase oxygenates. The adsorption of O2 inhibits H2O2 adsorption, suppressing side reactions.
Researchers have developed a scaled-up version of a probabilistic computer using stochastic spintronic devices, suitable for combinatorial optimization and machine learning. The new design combines conventional semiconductor chips with modified spintronic devices, achieving massive improvements in throughput and power consumption.
A new iPMA-type Hexa-technology in Magnetic Tunnel Junctions (MTJ) is showcased for improving ultra-low power consumption in IoT edge-devices and other applications. The 25 nm iPMA-type Hexa-MTJ technology satisfies BEOL design rules for X nm generation CMOS nodes, enabling seamless scaling.
A team of researchers from Tohoku University successfully demonstrated a tin sulfide (SnS) interface exhibiting large band bending, which is necessary for obtaining a higher open-circuit voltage. This breakthrough could lead to the development of highly efficient thin-film solar cells with environmentally friendly credentials.
Researchers from Nagoya Institute of Technology found a feasible solution to prevent bipolar degradation in 4H-SiC semiconductor wafers using proton implantation. The technique pinches down partial dislocations in the crystal structure, preventing stacking faults and enhancing device reliability.
ICFO researchers successfully demonstrate transport of two-photon quantum states through a phase-separated Anderson localization optical fiber, showing maintained spatial anti-correlation. The phase-separated fiber enables efficient transmission of quantum information via Corning's optical fiber.
A research team developed an optical chip that can train machine learning hardware, improving AI performance and reducing energy consumption. This innovation uses photonic tensor cores and electronic-photonic application-specific integrated circuits to speed up the training step in machine learning systems.
Researchers at Penn Engineering have created a chip that outstrips existing quantum communications hardware, communicating in qudits and doubling the quantum information space. The technology enables significant advances in quantum cryptography, raising the maximum secure key rate for information exchange.
Researchers at Singapore University of Technology and Design (SUTD) have developed a novel phase-change key for new hardware security. The device, known as the physical unclonable function (PUF), is scalable, energy-efficient, and secure against AI attacks compared to traditional silicon PUFs.
Researchers discover individual gold atoms can target specific C-H bonds in organic molecules, enabling a low-energy reaction at room temperature. This breakthrough addresses two significant challenges and paves the way for the synthesis of novel organic and metal-organic nanomaterials.
Researchers develop a new way to manufacture high-efficiency diffraction gratings using reactive ion-plasma etching, achieving near-theoretical unpolarized diffraction efficiency of 94.3%. The process enables robust and durable gratings suitable for harsh environments.
Materials theorists Boris Yakobson and Ksenia Bets propose a method to control the growth of carbon nanotubes by constraining the carbon feedstock in a furnace. This approach allows for the production of batches with single desired chirality, which is essential for highly conductive applications. The researchers suggest etching away lo...
Researchers develop new technique to observe plasmons inside gold nanoparticles, revealing relaxation process with implications for energy conversion and development of light-harvesting materials. The ultrafast electron microscope enables analysis of ultrafast light-matter interactions at the nanoscale.
Researchers at TU Wien have developed a new method for creating high-quality contacts between metal and semiconductor materials, enabling faster and more efficient computer chips. The technology uses crystalline aluminium and a sophisticated silicon-germanium layer system to overcome the problem of oxygen contamination.