Articles tagged with Semiconductors
Researchers from LP3 Laboratory developed a light-based technique for local material processing in three-dimensional space of semiconductor chips. They successfully fabricated embedded structures inside Si and GaAs materials, which cannot be 3D processed with conventional ultrafast lasers.
Scientists at IISc report the development of a highly energy-efficient computing platform that offers promise in building next-generation electronic devices. The platform uses memristors to perform computation and storage at the same physical location, reducing energy consumption by orders of magnitude.
Cubic boron arsenide's high thermal conductivity and surprising long-lasting 'hot' electrons make it a promising material for photovoltaic and light detection applications. Researchers visualize the charge movement in single crystals using scanning ultrafast electron microscopy, revealing new transport properties.
Researchers at HZB develop tandem solar cells using perovskite and silicon, achieving record-breaking efficiencies of up to 29.8%. Customized nanotextures improve perovskite semiconductor materials by reducing reflection losses and parasitic absorption.
A team at KAUST has created an ultrathin dielectric metalens that improves focusing capabilities and can be scaled down for integration with photonics equipment. The metalens, designed from a custom array of TiO2 nanopillars atop a DBR, offers negligible intrinsic loss and easy fabrication.
Scientists have developed a compact, AI-powered spectrometer that can measure light at different wavelengths, enabling new applications in fields like environmental monitoring, medicine, and astronomy. The device is 100% electrically controllable regarding the colors of light it absorbs, making it scalable for widespread usability.
Australian researchers have engineered a quantum box for polaritons in a two-dimensional material, achieving large polariton densities and a partially 'coherent' quantum state. The novel technique allows researchers to access striking collective quantum phenomena and enable ultra-energy-efficient technologies.
Scientists at Swinburne University of Technology and FLEET collaborators observe and explain signatures of Fermi polaron interactions in atomically-thin WS2 using ultrafast spectroscopy. Repulsive forces arise from phase-space filling, while attractive forces lead to cooperatively bound exciton-exciton-electron states.
Researchers at the University of Virginia have developed a new material system that allows for the co-location of computation and memory on a single chip. This breakthrough could help flatten the energy demand curve for computing and reduce the strain on power grids.
Researchers aim to improve detection and removal of hardware trojans, which can disrupt wireless communication and leak sensitive information. The project is part of a public-private partnership aiming to accelerate the translation of research findings into new technologies.
Researchers developed Pillar-Suspended Bridge (PSB) technology for chiplet integration, enabling improved inter-chip connection density and electrical properties. The technology uses a simple structure with high bonding accuracy and reduces yield problems when scaling up integration.
Assistant Professor SUZUKI Hiroo and colleagues have developed a method to grow highly crystalline TMDCs, such as MoS2 and WS2, using chemical vapor deposition in a stacked substrate configuration. The technique produces samples with large domains and optimal photoluminescence characteristics.
The new computer chip uses a transistor-free design that eliminates data transfer time and minimizes energy consumption. It offers up to 100 times faster performance than conventional computing architectures, making it ideal for AI applications.
Researchers have developed a scalable, fully coupled quantum-inspired processor that can solve optimization problems efficiently. The system uses an array calculator approach to divide calculations among multiple chips, reducing data transmission and increasing performance.
A research team at POSTECH and Sungkyunkwan University has developed an ultrahigh refractive index metamaterial that maximizes light-matter interaction. The material recorded the highest-ever refractive index of 7.8 in visible and near-infrared regions, enabling strong reflection of specific wavelengths.
Researchers at Pohang University of Science & Technology (POSTECH) developed technology that cuts power consumption in semiconductor devices in half by inserting platinum nanoparticles. The findings increased memory effect of the device by over a million times, allowing for longer operation with relatively low voltage.
A $4.6 million NSF grant will provide microelectronics and nanomanufacturing training to military service members and veterans through a consortium of nine academic institutions and eight industries. The program aims to address the growing need for skilled workers in the US semiconductor industry.
Researchers have developed a new technique to dope gallium nitride (GaN), creating high-power electronic devices with reduced energy loss and increased efficiency. This breakthrough enables the use of GaN in compact power electronics for sustainable infrastructure, such as smart grids.
Researchers developed a silicon photodiode array for in-sensor processing, allowing for real-time image filtering and extraction of relevant visual information. The technology has potential applications in machine vision, bio-inspired systems, and intelligent imaging devices.
The NYU WIRELESS research center will pioneer basic measurements of devices, circuits, materials, and radio propagation channels at the highest reaches of the radio spectrum. The team will study propagation and channel modeling, as well as RFIC on-chip measurement capabilities up to 500 GHz.
KAUST researchers created a more efficient solar-cell module by redesigning its optical design, reducing power conversion efficiency loss in real-world applications. The new module achieved an efficiency increase from 25.7% to 26.2% due to refractive-index engineering.
A research team from the University of Göttingen has observed the build-up of dark Moiré interlayer excitons for the first time using femtosecond photoemission momentum microscopy. This breakthrough allows scientists to study the optoelectronic properties of new materials in unprecedented detail.
Researchers from Tokyo Institute of Technology have developed a surface-modified dye-sensitized nanosheet catalyst that can suppress undesirable back electron transfer and improve water splitting activity. This results in an efficient Z-scheme overall water splitting system with improved hydrogen production.
The NeuRRAM chip demonstrates wide range of AI applications with equivalent accuracy while reducing energy consumption by up to 70% compared to traditional compute platforms. It also supports various neural network models and architectures, enabling diverse AI applications on edge devices.
Researchers at Gwangju Institute of Science and Technology improve triboelectric nanogenerators by using mesoporous carbon spheres to enhance charge transport and surface charge densities. The device achieves a 1300-fold higher output current, enabling potential sustainable energy harvesting.
Scientists at KAUST have successfully created a semiconductor material with multiple exciton generation, resulting in a photocurrent quantum efficiency of over 100%. This breakthrough could lead to improved solar cells and light-harvesting applications.
Researchers at the University of Cambridge have developed a smart lighting system based on quantum dots, which can dynamically reproduce daylight conditions in a single light. The system achieves excellent color rendering, a wider operating range than current technology, and a wide spectrum of white light customization.
Researchers at Pohang University of Science & Technology developed a novel flash memory technology that increases data storage capacity and reliability through artificial defect generation. The new platform can distinguish eight data levels, making it suitable for neuromorphic computing and improving inference accuracy.
Researchers have experimentally demonstrated high carrier mobility in cubic boron arsenide, a crucial advance for next-gen electronics. The material offers promise for applications requiring both high electron and hole mobility.
Cubic boron arsenide overcomes silicon's limitations, providing high electron and hole mobility and excellent thermal conductivity. The material has been shown to have a significant potential in various applications where its unique properties would make a difference.
Professor Ben Mazin and his team developed precision optical sensors for telescopes, doubling the spectral resolving power. This breakthrough enables scientists to analyze exoplanet composition using spectroscopy, with implications for detecting different molecules across the universe.
Valleytronics researchers develop a novel 2D material that enhances the utility of excitons, leading to potentially faster logic operations and room-temperature quantum computing. The material's interlayer excitons exhibit longer lifetimes than intralayer counterparts, expanding applications in long-life exciton devices.
Researchers at City University of Hong Kong have successfully developed a novel Vacuum Ultra-Violet (VUV) meta-lens, which can generate and focus the VUV light. The focused VUV light source enables nanolithography, material processing, and advanced manufacturing applications.
Researchers at UCSB develop soft, semiconducting carbon-based polymer for reconfigurable logic circuits. The conjugated polyelectrolyte enables flexible and power-efficient electronics, promising a new era in computing systems.
A team of researchers at Osaka University developed a new method for direct three-dimensional bonding of copper electrodes using silver, enabling reliable connections at low temperatures without external pressure. The process can be performed under gentle conditions, resulting in permanent connections as small as 20 micrometers.
Researchers use machine learning to automatically analyze Reflection High-Energy Electron Diffraction (RHEED) data, enabling faster and more efficient discovery of new materials. The study focused on surface superstructures in thin-film silicon surfaces and identified optimal synthesis conditions using non-negative matrix factorization.
A University of Minnesota research team solved the long-standing mystery of strontium titanate's dielectric properties by accounting for interface effects. They achieved a dielectric constant exceeding 25,000 in epitaxial SrTiO3 films, making them suitable for applications such as electronic devices and data storage.
Researchers developed perovskite quantum dot microarrays to achieve better results in full-color light-emitting devices and expand potential applications. The technique resolves challenges such as optical crosstalk and aggregation of quantum dots, increasing pixel thickness and efficiency.
Ritsumeikan University researchers create a novel thin-film flexible piezoelectric-photovoltaic device that can generate electricity from indoor lighting. The device's performance is improved through strain-induced polarization in the ZnMgO layer, increasing open-circuit voltage and overcoming charge recombination issues.
Researchers have discovered a way to create devices that mimic natural photosynthesis, producing fuels like hydrogen instead of sugars. The breakthrough uses bismuth oxyiodide, a non-toxic semiconductor material that can produce clean hydrogen from water over weeks.
An international team of researchers has observed a unique 'fruitcake' structure in an organic polymer, revealing variations in hardness at the nanoscale. This discovery could lead to the development of next-generation microelectronic and bioelectronic devices with improved flexibility and biocompatibility.
A new membrane stabilizes lithium electrodes by regulating the ion electrodeposition process, leading to improved battery performance. The study demonstrates a significant step towards developing safer and more efficient lithium metal batteries.
A new method for creating key components of solar cells, X-ray detectors, and LEDs uses water to control the growth of phase-pure perovskite crystals. This approach allows for precise tuning of crystal structures at room temperature.
Osaka University researchers have created a nanocellulose paper semiconductor with 3D network structures that can be tuned for use in various sustainable electronic devices. The treatment process allows for heat-induced conductivity without damaging the nanostructure, enabling flexible macro-scale structures and detailed designs.
Researchers at Samsung have developed a novel approach to inspect critical dimensions of semiconductor devices, improving speed and resolution. The new 'line-scan hyperspectral imaging' (LHSI) technique offers faster measurements with high spatial resolution, outperforming existing methods.
Researchers have developed a novel method called 'dative epitaxy' for growing thin layers of crystals made from different materials on top of each other. This technique allows for the formation of special chemical bonds to fix crystal orientation, overcoming limitations of conventional and van der Waals epitaxial techniques.
Researchers will investigate the radiation resistance of wide bandgap semiconductors to develop devices for environments with significant radiation. The team aims to understand defects and their impact on device performance to achieve optimum radiation hardness.
Scientists at KAUST have studied charge carrier behavior in perovskite thin films using laser pulses and terahertz radiation. They found that increased density of charge carriers narrows the energy gap for electrons to be excited by light, and charge carriers become more localized at higher densities.
A research team from City University of Hong Kong has developed an efficient electrochemical intercalation method to produce high-yield mono- or few-layer transition metal dichalcogenide (TMD) nanosheets. The new strategy offers a higher degree of control over lithium insertion and can be scaled up for industrial applications.
Researchers at Osaka University and National Research Council Canada create a gallium arsenide quantum dot that can trap individual electrons. The development could help advance the field of quantum networks by efficiently converting photons into electron spins.
Researchers at Princeton University have achieved an unprecedented level of fidelity in two-qubit silicon devices, paving the way for the use of silicon technology in quantum computing. The study's findings suggest that silicon spin qubits have advantages over other qubit types, including scalability and size limitations.
Researchers propose a novel pathway to realizing hot carrier solar cells, which can exceed the typical efficiency limit on solar cells. The approach involves isolating hot carriers within higher energy valleys in semiconductors, reducing energy loss to heat.
Researchers at Cornell University have developed a high-quality crystal of aluminum nitride and created an optical cavity to trap emitted light, enabling the production of a deep-ultraviolet laser with exceptional precision. The breakthrough has significant implications for various applications, including sterilization, sensing, and ph...
Researchers create a quantum anomalous Hall insulator by stacking a ferromagnetic material between two 2D topological insulators, enabling room-temperature lossless transport. The new architecture could lead to ultra-low energy future electronics or topological photovoltaics.
Researchers will explore Majorana zero modes to optimize quantum computing, enabling faster calculations and more accurate processing. The goal is to create fault-tolerant topological quantum computers with long-lived storage of quantum information.
Three University of Central Florida researchers have been awarded multi-million-dollar projects by the US Department of Defense to advance hypersonic propulsion and improve semiconductor performance. The projects will focus on developing new technologies for ultra-fast intercontinental travel and making space travel more economical.
Scientists from Ruhr-University Bochum have improved the manufacturing process for quantum dots by creating a targeted arrangement on a wafer. The team discovered that the density of quantum dots was distributed concentrically due to the coating process, resulting in high-quality structures.
A team of scientists has discovered a way to bend electrons without applying a magnetic field by using circular polarized light in bilayer graphene. This breakthrough enables new sensing applications and opens up possibilities for infrared and terahertz sensing, medical imaging, and security applications.
Researchers create a microscopic sandwich of an aluminium superconductor on top of an indium-arsenic semiconductor to probe quantum interactions in super-semi sandwiches. They developed a novel probing technique, paving the way for new applications like topological quantum bits based on Majorana zero modes.
Researchers at Pusan National University have developed oxidation-resistant copper thin films, which could potentially replace gold in semiconductor devices. The films' flat surface reduces the growth of copper oxides on its surface, making them resistant to corrosion.