Articles tagged with Silicon
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.
A self-standing mesoporous Si film anode has been developed for lithium-ion batteries, exhibiting excellent performance without the need for additives or binders. The film's pore characteristics show a strong correlation with electrode performance.
Researchers at the University of Surrey have developed a new design for ultra-thin photovoltaic panels that absorbs over 65% of sunlight, outperforming previous records. The innovative honeycomb structure enables efficient light absorption from any angle, trapping light inside the solar cell and generating more energy.
A team of researchers has developed a MEMS scanning lidar that can detect objects reliably even in shaky environments. The long-range MEMS lidar prototype uses a digital controller to suppress errors caused by vibrations, allowing for stable 3D imaging and object detection.
The research team created silicon-based qubits using FinFET architecture that can store quantum information in two states at higher temperatures, allowing for scalability and integration into existing industry standards.
Researchers from NTU Singapore and KIMM create chemical-free printing technique to fabricate semiconductor wafers with nanowires. The method produces highly uniform and scalable wafers, leading to improved performance and high chip yield.
Researchers have successfully combined perovskite with silicon in a tandem cell, achieving an efficiency of 21.3%. The team estimates the PCE to be 29.5%, with potential for further improvement through surface optimization.
Researchers demonstrate a two-terminal tandem solar cell with enhanced efficiency through spectrum splitting, achieving a 5-6% gain in absolute efficiency. The design uses planar and Lambertian spectral splitters to effectively distribute sunlight among the top and bottom cells.
Researchers have designed a tiny and flat antenna for receiving and transmitting terahertz signals, enabling the miniaturization of THz devices. The new design integrates the antenna with the system, eliminating the need for bulky silicon lenses and reducing optical power required.
Researchers have achieved 99% accuracy in quantum computing using silicon-based devices. The breakthrough enables the creation of large arrays of qubits capable of robust computations, overcoming a significant challenge in building reliable quantum computers.
The University of Surrey researchers have developed a method to generate up to 3.1% biaxial strain and 8.5% uniaxial strain in single-crystal silicon using ion implantation, which could lead to the development of germanium lasers and near-infrared sensors for smartphones.
Researchers have successfully demonstrated ULTRARAM¼trade mark computer memory on silicon wafers for the first time, combining non-volatility with speed and energy-efficiency. The technology outperforms previous incarnations, offering data storage times of at least 1000 years and fast switching speeds.
A research team at Toyohashi University of Technology demonstrates a new substrate structure that enables the excitation and detection of high-intensity broadband spin waves, even when miniaturized. The YIG-on-metal (YOM) structure achieves broader frequency bandwidth and higher intensity than conventional electrode structures.
Researchers developed a new process to produce stable formamidinium perovskite (FAPbI3) materials, which can be used to make more efficient and stable solar cells. The novel approach uses lower temperatures and eliminates additives, making it suitable for large-scale production and flexible solar cell applications.
Researchers at Indiana University have developed a silicon device that can change skin tissue into blood vessels and nerve cells. The technology, called tissue nanotransfection, is being explored for use in treating conditions such as stroke and diabetes-related nerve damage.
Prof. Tingyi Gu from the University of Delaware has received a $500,000 DARPA Young Faculty Award to improve the power efficiency of digital communications. Her research focuses on manipulating light direction to create more energy-efficient photonic systems.
A new study uses a microspectroscopic technique to measure micro- and nano-sized plastics in steam-disinfected silicone-rubber baby bottle nipples. The research found that these fine particles can be released into the environment and ingested by babies, posing health risks.
Researchers develop new epitaxial growth mechanism to achieve large-scale single-crystal WS2 monolayers, overcoming a crucial hurdle in replacing silicon with 2D materials. The technique enables uniform alignment of small crystals and leads to the successful growth of wafer-scale single-crystals of WS2, MoS2, WSe2, and MoSe2.
Researchers at Politecnico di Torino developed a new method for creating nanoresonators using 3D printing, achieving mechanical performances similar to silicon-based devices. The technique enables the creation of complex and miniature sensors with improved sensitivity and strength.
Researchers propose a hybrid artificial neural network and analytical model to predict optical constants and bandgap energy of novel silicon thin films. The method was found to be 95% accurate in determining the optical properties of these materials, which is challenging due to limited experimental data available.
Researchers have developed a superconducting silicon-photonic chip for quantum communication, enabling optimal Bell-state measurement of time-bin encoded qubits. This breakthrough enhances the key rate of secure quantum communication and removes detector side-channel attacks, significantly increasing security.
Researchers from KTH Royal Institute of Technology have developed a synthetic alloy that increases perovskite cells' durability while preserving energy conversion performance. The new material can survive for several minutes completely immersed in water, retaining its efficiency for over 100 days after manufacturing.
SMART researchers have discovered a practical method to overcome current challenges in the manufacture of indium gallium nitride (InGaN) LEDs with considerably higher indium concentration. The new approach uses intrinsic defects in semiconducting materials to form quantum dots that emit long-wavelength light.
Researchers have developed metal-halide perovskite semiconductors as a cheaper alternative to silicon for solar cells and LEDs. The new material class offers excellent functionality and can be processed from solution, allowing for the creation of efficient devices.
A new instrument at the Advanced Light Source enables simultaneous measurement of crystal structure and optical properties during perovskite synthesis. This allows for real-time monitoring of material quality and performance, leading to potentially more efficient solar cells.
Researchers have observed for the first time how silicon anodes degrade in lithium-ion batteries due to swelling and electrolyte infiltration. This degradation leads to reduced battery capacity and charging speed, but scientists are exploring ways to protect silicon from these effects.
Colloidal quantum dot technology enables infrared lasing at room temperature, paving the way for low-cost solution-processed and CMOS integrated lasing sources. The breakthrough discovery may facilitate fully integrated silicon photonics, enabling lower power consumption, higher data rates, and multi-spectral 3D imaging capabilities.
A team of researchers at Bristol's Quantum Engineering and Technology Labs has developed a silicon photonic chip that can protect quantum bits from errors using photons. This breakthrough could lead to the creation of more powerful quantum computers by reducing the fragility of qubits.
Researchers at University of California San Diego created a high-performance all-solid-state battery using pure-silicon anode, showing safe, long-lasting, and energy-dense properties. The new battery technology offers a promising path forward for silicon anodes, which were previously limited by liquid electrolytes.
Researchers at Aalto University created intricate shapes like letters by manipulating tiny metal balls with vibrating plates and energy fields. The smart algorithm efficiently guided the particles to achieve desired shapes, inspired by natural phenomena like wind and water.
Researchers developed an all-nitride superconducting qubit using niobium nitride on a silicon substrate, achieving long coherence times of up to 22 microseconds. The breakthrough paves the way for large-scale integration and potential applications in quantum computers and nodes.
Researchers from SUTD discover a family of 2D semiconductors with Ohmic contacts, reducing electrical resistance and generating less waste heat. This breakthrough could pave the way for high-performance and energy-efficient electronics, potentially replacing silicon-based technology.
Researchers have developed a new structure and materials for tandem solar cells, enabling more light to be captured and energy converted effectively. The n-i-p configuration achieved a significant improvement in power-conversion efficiency, exceeding 27%, surpassing previous best values.
Researchers at The Rockefeller University have revealed a more nuanced historical wave pattern to the rise of transistor density in silicon chips. The study highlights six waves of improvements, each lasting about six years, with significant increases in transistor density per chip.
Researchers pair metal halide perovskites with conventional silicon to create a more powerful solar cell, overcoming the 26% practical efficiency limit. The technology has the potential to rapidly scale up solar energy production and help meet ambitious climate change targets.
A UC Riverside materials scientist has received a $2 million grant to improve the scalability of quantum computers, allowing them to operate at room temperature. The project aims to create design guidelines and manufacturing strategies for hybrid organic-inorganic structures that can produce quantum computers on a larger scale.
The new infrared detector can make two technically important ranges of infrared radiation visible, previously not covered by conventional photodiodes. The sensor can distinguish between substances based on their different absorption properties in the NIR and SWIR range.
Researchers at C-Crete Technologies have developed a method that utilizes deep learning to quickly predict and design novel hybrid organic-inorganic materials, offering improved materials design for various industries. By feeding quantum mechanics calculations to layered machine learning based on artificial neural networks, they can un...
A new study from Washington University in St. Louis shows that guided by sparsity, silicon neurons learn to pick the most energy-efficient perturbations and wave patterns, enabling an emergent phenomenon of efficient communication between neurons. This research has significant implications for designing neuromorphic AI systems.
Researchers developed a novel method to visualize and understand the structural and chemical evolution of silicon and its interface with the electrolyte. This breakthrough could lead to more robust lithium batteries with improved performance and longer cycle life.
Researchers monitored dislocations in silicene sheets after adding silicon atoms, revealing a sequence of reactions that integrate Si atoms. The study could provide solutions to heal structural defects in similar materials.
A doctoral student at Texas A&M University has designed a chip that can revolutionize data rate for processors by utilizing photons. The chip operates at higher speeds with higher data rates compared to previous generation of chips, and is capable of reaching nearly five times the bandwidth.
Scientists successfully produce and characterize a crystalline complex with a two-dimensional equivalent of silicon, defying geometric expectations. The resulting structure displays surprising physical and chemical properties, opening up new avenues for catalysis and materials research.
Researchers from USTC created a divacancy color center array and achieved spin-coherent manipulation of a single divacancy color center at room temperature. The spin color centers showed excellent properties comparable to the diamond NV center, with a 30% spin readout contrast and extended coherence time of up to 23 microseconds.
Scientists have found a low-cost way to split off oxygen molecules from water using sunlight, paving the way for more efficient production of clean hydrogen. The breakthrough uses a technique that creates electrically conductive paths through a silicon dioxide layer, allowing for stable and efficient water splitting.
Researchers found that prolonged silicon consumption in small doses led to lung fibrosis and inflammation in rats and mice, with negative effects appearing six months after switching to clean water. The findings have implications for the use of microelement additives in dietary supplements.
The Bowers lab and EPFL team developed an integrated semiconductor laser and resonator capable of producing soliton microcombs, expanding data transmission capabilities. The technology enables seamless integration with low-loss nonlinear optical micro-resonators, lending itself to commercial-scale production.
Researchers at EPFL and UCSB successfully integrate ultralow-loss Si3N4 photonic integrated circuits with semiconductor lasers, enabling chip-scale frequency combs for high-capacity transceivers, data centers, and sensing applications. This breakthrough paves the way for large-volume, low-cost manufacturing of soliton microcombs.
Researchers at Stanford University have invented a manufacturing technique that yields flexible, atomically thin transistors less than 100 nanometers in length. The technique, detailed in a paper published in Nature Electronics, promises bendable, shapeable, yet energy-efficient computer circuits.
Researchers at North Carolina State University have developed a 125μm×245μm Gen2-compatible RFID chip, the world's smallest of its kind. The smaller chip size enables mass production and reduces costs to under one cent per tag.
Researchers at Penn State have developed a novel graphene-based physically unclonable function (PUF) that is more energy-efficient and secure against AI attacks than silicon-based devices. The device's unique properties make it resistant to machine learning attacks, adding tamper resistance as another security feature.
Researchers have made a breakthrough in photovoltaics technology by developing tandem cells and singlet fission processes that reduce operating temperatures and extend device lifetimes. This innovation leads to a 2%-4% gain in annual energy production and doubles the lifetime of devices for every 10°C reduction in temperature.
Researchers develop a new technique to investigate surface structures of semiconductors at the atomic scale. The technique, called atomic point contact Raman spectroscopy, reveals enhanced Raman scattering from silicon surfaces when a plasmonic silver tip is brought into contact with the surface.
A team from Brown University has made a significant breakthrough in improving the long-term reliability of perovskite solar cells by creating a molecular glue that strengthens key interfaces. The treatment increases cells' stability, reliability, and efficiency, setting the stage for widespread adoption of clean energy technology.
A new infrared imager developed by researchers at the University of California San Diego converts shortwave infrared light into visible images using organic semiconductors. The device is compact, simple, and provides better image resolution than existing systems.
Researchers have developed a new semiconductor material that can conduct electricity more efficiently than before, using inexpensive chemicals like dimethyl sulphoxide and hydrobromic acid. The material has the potential to improve solar cells, mobile phones, and wearable electronics, with costs 5000 times lower than existing materials.
Scientists have developed a new method to directly observe the filling and emptying of tiny pores in materials, revealing complex mechanisms behind guest-atom interactions. This breakthrough uses combined X-ray methods to provide empirical insights into confined matter in battery electrodes, catalysts, and hydrogen storage materials.
Researchers propose integrating photonic components with superconducting electronics to enable artificial cognitive systems of scale and functionality. This approach may be easier at low temperatures using superconductors than at room temperatures using semiconductors.
Scientists have developed a new technology for building silicon nitride integrated photonic circuits with record low optical losses, significantly reducing power budgets for chip-scale optical frequency combs. The technology enables high-quality-factor microresonators and meter-long waveguides on small chips.
Scientists have discovered the mechanism underlying the effect of carbon impurities on gallium nitride semiconductors, which can degrade their performance. The findings suggest that deep levels trap holes, leading to slower charge carrier recombination and a decline in decay time with high temperatures.