Articles tagged with Silicon
The University of Vienna team uses a state-of-the-art electron microscope to demonstrate atom manipulation in graphene, revealing the locations of silicon impurities. A new online simulation game, Atom Tractor Beam, allows users to control the movement of these impurities using an electron beam.
A team of UT Austin chemists has received a $1 million grant to develop an innovative new coating for silicon-based solar cells that could increase their efficiency by up to 20%. The coating uses organic dyes to convert more sunlight into electricity, reducing heat losses and energy inefficiencies.
Researchers have demonstrated a method for getting high-energy photons to kick out two electrons instead of one, potentially breaking the theoretical solar-cell efficiency limit. The new approach could add several percentage points to the maximum output of conventional silicon cells.
Scientists from the University of Bristol have developed a new platform for quantum simulators, enabling the creation of large-scale photonic circuits. The team demonstrated that small-scale silicon photonic circuits can generate and process unprecedented numbers of photons, paving the way for quantum machines to surpass classical supe...
A mechanism for bicyclic silicon tricarbide formation has been identified in the circumstellar envelopes of carbon stars. Electronically excited silicon atoms react with allene and methylacetylene to form SiC3H2, which is then converted into c-SiC3 via stellar wind and UV light
Researchers at KAUST have developed water-wet materials with gas-entrapping pores that allow for simultaneous separation of hot, salty and cool, pure water. The new membrane technology uses common plastics like PMMA and has the potential to unlock greener, cheaper desalination processes.
Research into phosphorene nanosheets has improved the potential of perovskite solar cells by increasing their electricity production efficiency by 2-3%. This breakthrough is significant as it could lead to more efficient and potentially cheaper solar cells, paving the way for a more sustainable future.
Researchers at Vanderbilt University developed a low-cost, smartphone-based diagnostic system using nanoscale porous silicon to detect various bodily fluids. The system accurately detects proteins in urine and bacteria in water with accuracy comparable to commercial benchtop measurement systems.
Researchers developed a new technique to study the structure of silicon nanocrystals, revealing disordered layers on the surface and crystalline cores. This discovery can lead to optimized functions and tailored applications for various fields, including battery development and medical imaging.
Researchers at NTNU have developed a method to make optical fibers using gallium antimonide, which can emit infrared light, allowing for longer wavelengths and improved transmission. This could lead to better medical diagnoses and more precise environmental monitoring.
Researchers at the University of Toronto have discovered a way to combine perovskite crystals and quantum dots to create a stable hybrid material that can increase the efficiency of solar cells. The resulting material remains stable under ambient conditions for six months, significantly longer than similar materials without stabilization.
For the first time, researchers have measured the fidelity of two-qubit logic operations in silicon with highly promising results. The study demonstrates an average two-qubit gate fidelity of 98%, paving the way for scaling up to a full-scale quantum processor.
Researchers from NYU introduce a voltage-controlled topological spin switch (vTOPSS) that reduces heat generated and energy used in computing. The new method enables faster and more secure computing by replacing traditional silicon transistors, increasing functionality and circuit design possibilities.
Scientists create ultrathin device with silicon nanopillars to shape ultrafast light pulses, enabling controlled compression, splitting, and distortion. This technique has potential for high-speed communication and studying ultrafast phenomena.
Hippos play a key role in transporting silicon from land to water through their faeces, influencing over 76% of the total silicon transported along the Mara River. This process is crucial for ecosystems like Lake Victoria, where a lack of silicon can lead to food shortages and ecosystem collapse.
The new collimator sets up Newtonian mechanics that could be adapted for practical use in beam-driven gyroscopes, helping track motion and changes in location. It also enables experimental physicists to create complex quantum states, and its beams are streams of unwavering inertia due to the atoms' mass and momentum.
Researchers create a 240-by-240 array of microscopic 'traffic cops' that can control light beams faster and more efficiently than ever before. The new photonic switch has the potential to transform how information travels through data centers and artificial intelligence networks, overcoming limitations of current electrical switches.
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.
Two universities have collaborated to overcome a fundamental hurdle in building quantum computers in silicon. This collaboration opens the way for further development of machines at scale, enabling billions of qubits to be built in complex arrays.
Researchers have developed a nanofabrication technique to create bug-shaped robots that are wirelessly powered and able to survive in harsh environments. The robots are tiny enough to be injected through an ordinary hypodermic needle and can be controlled using laser power or other energy sources.
Researchers have developed an integrated silicon photonic switch capable of processing 240 inputs and 240 outputs simultaneously, achieving the lowest signal loss ever reported. The device, measuring 4cm x 4cm, surpasses previous records by nearly doubling the size of existing silicon photonic switches.
Researchers at Drexel University and Trinity College developed a new method to fortify silicon anodes with MXene materials, stabilizing them enough for use in batteries. The resulting silicon-MXene anodes showed higher lithium-ion capacity and superior conductivity than conventional silicon anodes.
Researchers at EPFL have developed a new method to grow nanowires in a highly controlled and reproducible manner. By altering the diameter-to-height ratio of the hole, they can perfectly control how the nanowires grow, enabling applications such as laser generation on silicon chips.
Researchers are working on developing faster-charging batteries for electric vehicles by understanding how lithium ions distribute within the electrode. They used X-rays to create a micron-scale movie of lithium distribution, revealing inhomogeneous movement similar to people spreading out in a room.
Researchers at UCSB have developed a high-performance quantum dot mode-locked laser on silicon, which can increase data transmission capacity by an estimated decade. The technology has the potential to significantly improve data centers' and telecommunications companies' performance.
Researchers at MIT and international partners have developed an AI-powered method to explore the possibilities of strain-engineered materials. By applying machine learning methods, they can accurately predict how different amounts and orientations of strain would affect a material's properties.
Researchers develop flexible, inexpensive material to convert Wi-Fi signals into electricity. The new device can power large-area electronics, wearables, medical devices, and more with a maximum output efficiency of 40 percent.
Researchers have developed tiny gears made of germanium that can generate a vortex of twisted light, enabling high-capacity data transmission with chip-based optical computing and communication. The new technology has the potential to boost the amount of data that can be transmitted using less light.
Researchers have discovered a way to create atomic-scale binary logic that powers faster and more energy-efficient electronics. This breakthrough could lead to significant reductions in power consumption and pave the way for sustainable, green technology.
Researchers have discovered a new way to manipulate spin-orbit coupling in silicon to create compact and efficient qubits for large-scale quantum computing. This breakthrough enables fast read-out of the spin state of just two boron atoms in an extremely compact circuit, hosting all devices in a commercial transistor.
Researchers propose new storage system to deliver electricity on demand using molten silicon and high-temperature pump, offering cost-effective alternative to pumped hydroelectric storage. The system could be paired with existing renewable energy systems to capture excess electricity during the day and store it for later use.
A new study published in Biogeosciences reveals that declining silicon concentrations in the European Arctic Ocean reduce diatom production, impacting the food chain and organic matter sinking to the seafloor. The research team confirms this effect in 95% of samples collected during a research expedition.
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.
Scientists at FAU have developed a new organic molecule that absorbs more light than fullerenes and is very durable. The hybrid printed photovoltaics achieved a certified power conversion efficiency of 12.25%, setting a new record for solution-based organic single-junction solar cells.
Researchers at Lobachevsky University have synthesized a hexagonal modification of silicon with enhanced optical properties, which can be used in optoelectronic integrated circuits. The material was created using ion implantation and exhibits an associated emission band in the infrared region.
Researchers at UNSW Sydney have developed a compact sensor for accessing information stored in individual atoms, reducing the number of connections and gates required for scale-up. This breakthrough enables more efficient and sensitive qubit readout, a crucial step towards scalable quantum computing in silicon.
Electrical engineers at TU Darmstadt have designed a laser-driven electron accelerator that can be produced on a silicon chip, enabling inexpensive and compact particle accelerators. The design uses an alternating-phase focusing method to focus electrons in a narrow channel, promising applications in industry and medicine.
Researchers use computational chemistry to explore interactions between organic molecules and surfaces, gaining insights into designing patterned surfaces for next-generation semiconductors. High-performance computing enables simulations of molecular dynamics, revealing new phenomena and improving the understanding of chemical reactions.
Researchers at NUS developed a low-cost 'battery-less' wake-up timer that significantly reduces power consumption of silicon chips for IoT sensor nodes. The innovation enables long-lasting IoT applications and paves the way for aggressive miniaturization of IoT devices.
Researchers have developed a new approach to improve the efficiency of perovskite-silicon tandem solar cells by using textures and a polymer light management foil. This design achieved an efficiency of 25.5%, outperforming previous records, and has the potential to reach up to 32.5% with further improvements.
Researchers at Purdue University have developed a new flexible, transparent biopatch that can deliver exact doses of biomolecules directly into cells, expanding observational opportunities. The patch, which is minimally invasive, can also treat cancerous tissue, making it a potential breakthrough in healthcare.
A team of Penn Engineers has developed a new material called nanocardboard, an ultrathin equivalent of corrugated paper cardboard. It is made of aluminum oxide film with a thickness of tens of nanometers and can spring back into shape after being bent in half.
An Australian research team has experimentally realised a crucial combination of two fundamental quantum techniques on a silicon chip, confirming the promise of silicon for quantum computing. The integrated design combines single-spin addressability and a qubit read-out process vital for quantum error correction.
Researchers at Yale and the Flatiron Institute found that compact, multiple-planet systems are more likely to form around stars with lower amounts of heavy elements. This discovery suggests new insights into the formation of smaller planets and their potential for supporting life.
Researchers developed a device that utilizes nonlinear dynamics of a microscopic silicon beam to enable microelectromechanical neural networks, achieving high-dimensional calculations. The system demonstrated accuracy in tasks such as classifying spoken sounds and processing binary patterns.
Researchers create semiconducting films from materials like gallium arsenide, lithium fluoride, and silicon, with potential for low-cost, high-performance devices. The technique uses remote epitaxy and graphene, allowing for the production of flexible electronics that outperform traditional silicon-based devices.
Researchers developed a low-power chip that integrates lasers and frequency combs for the first time, enabling ultrafast processes in physics, biology and chemistry. The device can be powered by an AAA battery, opening up new possibilities for portable devices.
Researchers at the University of Illinois Chicago developed a nano-sandwich technique to improve heat transfer between two-dimensional materials and silicon bases, reducing component failure due to overheating. By adding an ultra-thin layer of aluminum oxide, they were able to double energy transfer between the materials.
Scientists at ITMO University have developed a new material using silicon nanoparticles to improve perovskite solar cells' efficiency. The nanoparticles trap light of various wavelengths near the cell's active layer, maintaining stability and increasing absorption. This breakthrough could lead to more efficient and stable solar cells.
Researchers used a boron nitride separation layer to grow InGaN solar cells, which were then lifted off their substrate and placed onto glass for improved light absorption. The new technique could boost solar cell efficiency up to 30 percent.
Researchers at Vanderbilt University created a structure that concentrates light powerfully, nearly indefinitely, using a simple equation. The bowtie-funnel combo amplifies input light in a small region, enabling low-power manipulation of information on computer chips.
A team of researchers at the University of Bristol has developed a silicon chip that can guide single photons to encode qubits, demonstrating a fully functional quantum processor. This breakthrough device shows promise for scalable and low-cost production of quantum computers.
A University of Queensland researcher led an international study to develop a programmable machine that can accomplish various tasks using reprogrammed settings, resulting in exponential changes.
New solar energy research from Arizona State University demonstrates that silicon-based tandem photovoltaic modules can become increasingly attractive in the US market, with potential to reduce costs and increase efficiency. The study found that 32% efficient anticipated tandem modules can cost more than three times that of projected 2...
Researchers at Goethe University Frankfurt have created a new process to produce highly functionalized organochlorosilanes, ideal crosslinkers for various applications. The process enables the production of inorganic-organic hybrid materials with unique properties.
Researchers have developed a quantum random number generator using a millimeter-scale chip that measures phase fluctuations from a laser diode, generating high-speed random numbers with low power consumption. The device enables real-time encryption and secure data transmission, overcoming vulnerabilities of existing algorithms.
A team of toxicologists led by FEFU researchers found that carbon nanotubes and silicon nanotubes exhibited acute toxic effects on Heterosigma akashiwo microalgae at concentrations as low as 100 mg/l. Silicon nanotubes were more toxic than carbon nanotubes due to their smaller size and hydrophilic properties.
Researchers at Peter the Great St. Petersburg Polytechnic University, Leibniz University Hannover, and Ioffe Institute create a novel nanocomposite material to harness energy in hydrogen economy. The new structure isolates gold nanoparticles from silicon, increasing efficiency.
Researchers at Purdue University have developed a new fabrication method for tiny electronic circuits that can peel off from a surface, enabling objects to sense their environment or be controlled through stickers. The technology has potential applications in various fields, including the Internet of Things (IoT) and medical devices.
Scientists have successfully implemented an atomic engineering strategy to individually address closely spaced spin qubits in silicon, achieving dramatically different control frequencies. This breakthrough enables selective addressing of qubits, reducing errors and advancing the development of a silicon-based quantum computer.