Articles tagged with Semiconductors
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.
Scientists have created a new way to generate electricity using light, which operates at speeds 5,000 times faster than current computers. The 'interatomic light rectifier' uses the interaction between atoms to produce directed electric currents.
Researchers at Tohoku University have developed a 128Mb-density STT-MRAM with a write speed of 14 ns, setting a new world record. This technology has the potential to significantly reduce power consumption in embedded memory applications.
Susan Fullerton is developing all 2D materials for next-generation electronics, with potential applications in information storage, brain-inspired computing, and security. Her research uses a novel approach to ion utilization, which could represent a paradigm shift in high-performance computing.
Engineers are working on a $1.88 million grant to study the fundamental properties of gallium oxide for use in high-voltage power systems. The goal is to minimize energy losses and enhance performance in devices such as surveillance drones, all-electric airplanes, and electric vehicles.
A team of scientists has discovered a single-site, visible-light-activated catalyst that converts carbon dioxide into 'building block' molecules. The breakthrough could lead to the use of sunlight to turn a greenhouse gas into hydrocarbon fuels.
Researchers at Harvard's Wyss Institute have created a novel yeast biohybrid system using an adaptable light-harvesting semiconductor approach. The innovation enables the production of complex chemicals by harnessing energy from light, significantly enhancing product yields and opening up new paths for biomanufacturing.
Researchers at Nagoya Institute of Technology have gained new insights into the mechanisms behind semiconductor degradation in 4H-SiC material, a popular alternative to standard materials. They discovered that specific types of atomic deformation lead to faster carrier recombination and device degradation.
Researchers find that a previously unreported intermediate radical zinc oxo-alkoxide cluster with gapless electronic states is formed before the growth of semiconducting ZnO phase. The transformation from insulator to conductor-like material occurs rapidly, and further heating leads to semiconductor properties.
A new paper reveals unique excitonic complex particles in atomically thin semiconductors, possessing a new quantum degree of freedom called valley spin. This discovery could lead to novel applications in electronic and optoelectronic devices.
Researchers discovered coherent resonance and stochastic resonance in an excitable semiconductor superlattice, enabling faster detection of weak signals. This breakthrough can be used to extract information from noisy data, analyze astronomical observations, and process image signals.
Researchers at UC Berkeley have developed protective suits for bacteria that allow them to thrive in environments without oxygen. The hybrid system mimics photosynthesis and captures carbon dioxide, producing various chemical compounds that can be used by industry or in space colonies.
Researchers at Osaka University developed a two-step process to produce materials with good morphological properties and excellent photoresistor performance. The technique improves photo response performance by up to 100 times compared to other methods, making bismuth sulfide a promising material for optoelectronic devices.
Researchers at DGIST developed an artificial synaptic device that simulates the human brain's memory function. The device uses tantalum oxide to mimic synapses and has overcome durability limitations of current devices. It can store multiple values, reducing power consumption by over one-thousandth compared to digital signals.
Osaka University-led researchers developed non-toxic nanoparticles that emit vivid, clean colors with high energy efficiency. The new particles use a chaotic material shell to achieve pure colors without rigid structures.
Researchers at MIT have developed soft hardware that can be worn, integrating high-speed optoelectronic semiconductor devices into fibers woven into washable fabrics. This breakthrough could lead to a new 'Moore's Law' in fibers, enabling rapid growth in capabilities.
Researchers from the Universities of Konstanz and Paderborn have successfully demonstrated Wannier-Stark localization in a high-purity gallium arsenide crystal. This state results in drastic changes to the electronic structure of the crystal, leading to extreme optical nonlinearity and potential chemical reactivity.
Researchers aim to create storage systems integrating synthetic biology with semiconductor technology, potentially storing 1,000 times more data than current capabilities. The goal is to develop devices with greater storage capacity and lower power usage.
Researchers have achieved a direct solar water-splitting efficiency of 19.3%, surpassing the theoretical maximum of 23%. The innovation lies in a tandem cell made of III-V semiconductors and a crystalline titanium dioxide layer, which improves anti-reflection properties and enhances catalyst activity.
A UH-led team has reported synthesizing a crystal grown from boron and arsenic elements with far higher thermal conductivity than any other semiconductors and metals. The discovery could address technological challenges in cooling electronic devices, which is crucial for high power density electronics.
Researchers at Purdue University have discovered a way to manipulate the interaction between paired and lined-up electrons in semiconductors. This finding has potential implications for electronic devices and quantum computing, as it allows for the tuning of electron-electron interactions and the control of phase transitions.
Empa researcher Sebastian Siol develops new phase of manganese selenide and telluride alloy, displaying useful piezoelectric properties. The material combination is promising for various applications such as smart windows, gas sensors and semiconductor coatings.
Researchers from University of Bristol and Cambridge created polymeric semiconductor nanostructures that absorb light and transport its energy further than previously observed. Lightweight semiconducting plastics can now be used to convert sunlight into electricity more efficiently.
Researchers discovered that zinc sulfide crystals can bend up to 45% when in complete darkness due to the absence of electron trapping under light conditions. This unique property makes it suitable for flexible electronic applications where traditional inorganic semiconductors are brittle.
An inorganic semiconductor exhibits improved mechanical performance when kept in the dark, contrary to its brittleness under light exposure. The study found that zinc sulfide crystals display higher plasticity without fracture until a large strain of 45%, attributed to high dislocation mobility in complete darkness.
Rochester Institute of Technology faculty Jing Zhang has received a CAREER award from the National Science Foundation to develop high-efficiency ultraviolet light sources. Her research could advance applications in photolithography, 3D printing, environmental purification systems and chemical sensing.
Researchers at University of Strathclyde and Capital Normal University have developed a new source of intense terahertz radiation with unprecedented efficiency. This breakthrough could lead to new advances in science and technology, including the identification of normally hidden phenomena and unique control of matter.
Researchers at the University of Waterloo have developed a method to produce conjugated polymers using a dehydration reaction, resulting in cheap and environmentally friendly plastics. This breakthrough aims to streamline production and bring affordable electronics to market.
Researchers at LMU have found a novel effect in optical excitation of charge carriers in solar semiconductors, enabling more efficient conversion of infrared light into electrical power. The discovery involves resonances between light overtones and excitonic band-gaps, offering new avenues for solar cell innovation.
Scientists at University of Warwick discovered that physically deforming semiconductors used in commercial solar cells can generate a non-centrosymmetric structure, allowing for the bulk photovoltaic effect. This could potentially increase power generation efficiency by overcoming the Shockley-Queisser Limit.
Researchers have developed a hybrid system combining inorganic semiconductor nanocrystals with a molecular catalyst, achieving efficient hydrogen production. The system shows remarkable catalytic activity in water without the use of toxic metals like cadmium.
A joint research program aims to create a stable network of researchers working on perovskite semiconductors. The material has shown potential as a highly efficient and processable solar cell technology, with the goal of improving its defect tolerance.
Researchers discovered that kesterites with germanium exhibit lower point defects and disorder, leading to increased efficiency in solar cells. Germanium increases the optical band gap, allowing for more efficient sunlight conversion into electrical energy.
UC Berkeley engineers create a millimeter-wide, transparent light-emitting device using monolayer semiconductors. The device can emit bright light when turned on and become see-through when turned off, opening possibilities for invisible displays.
Researchers at RIT have improved the fabrication process of nano-structures for electronic devices, increasing performance and reducing costs. The new method uses indium-gallium-phosphide materials and combines benefits of wet etching and reactive ion etching.
Researchers at Georgia Institute of Technology have discovered a new class of semiconductors, known as hybrid organic-inorganic perovskites (HOIPs), that can emit light with nuanced colors. The materials are energy-efficient, easy to process and stable at room temperature, making them potentially useful for various applications.
Researchers at Iowa State University have discovered a new class of low-cost and environmentally friendly semiconductors using sodium, bismuth, and sulfur. The materials exhibit ideal properties for solar cells, including a stable band gap and resistance to air and water exposure.
For the first time, a Toffoli gate was experimentally demonstrated in a semiconductor three-qubit system. This achievement marks an important progress in scaling up semiconductor quantum dot-based qubits and motivates further research on larger-scale semiconductor quantum processors.
A new imaging technique uses a super sharp needle to nudge individual nanoparticles into different orientations, capturing 2D images to reconstruct 3D pictures. This method allows for the observation of defects in nanostructures like semiconductors and proteins, which can lead to better characterization and control of their production.
A team of researchers will work on creating hydrogen fuel from renewable sources, such as sunlight, to produce a clean alternative for transportation and residential applications. The goal is to make headway in the food-energy-water nexus by bypassing natural photosynthesis.
The Lehigh University team is building a new High Pressure Spatial chemical vapor deposition (HPS-CVD) reactor to create new materials with extreme conditions. The device will enable the growth of III-nitride and oxynitride semiconductors, paving the way for sustainable energy solutions and innovative technologies.
Researchers at the University of Illinois have developed a new phase-transition cubic GaN material that doubles ultraviolet emission efficiency. The material's polarization-free nature enables improved performance in energy conversion devices, such as lighting systems.
Researchers predict few-layer Tellurium (FL-α-Te) as a superior semiconductor to black phosphorus due to its high carrier mobility, tunable bandgap, and strong light absorption. FL-α-Te exhibits anisotropic inter-chain vibrational behaviors and nearly isotropic strong light absorption, making it an ideal material for thermoelectrics.
Scientists at the University of Waterloo have created a new class of semiconductors by controlling the orientation and size of single-walled carbon nanotubes. This breakthrough could lead to more powerful devices with improved battery life, as they consume less power.
Researchers at the University of Groningen have developed a new metal-semiconductor interface that combines storage, memory and processing in one unit, paving the way for brain-inspired computing architectures. The device uses a spin-memristor with tunability, enabling non-volatile storage and operation at room temperature.
Researchers at UCSB have successfully measured Berry curvature in solid matter for the first time using a unique laser experiment. This breakthrough has significant implications for designing new materials with optimized Berry curvature for applications in electronic and optical devices.
Researchers at Aalto University have successfully doped gallium nitride with beryllium, showing promise for reducing energy losses in power electronics. The findings suggest that the material can be controlled to achieve significant improvements in energy efficiency, potentially cutting global power consumption by up to ten percent.
KAUST researchers have created a new method for producing solar cells using lateral p-n heterojunctions, which achieve greater power conversion efficiency than traditional methods. This breakthrough simplifies the production process and enables cheaper solar tracking systems to become redundant.
Gallium selenide, a 2D semiconductor, loses electrical conductivity in air due to oxidation, hindering its application in nanoelectronic devices. Encapsulating GaSe in vacuum-manufactured devices with protective layers can maintain its optoelectronic properties.
Researchers at the University of Houston have developed a new form of stretchable electronics that can serve as an artificial skin, allowing a robotic hand to sense temperature differences. The breakthrough enables the creation of biomedical devices such as health monitors and medical implants with improved functionality.
Researchers developed a silver micron-particle sintering joining technology that can bond various electrodes, including Cu and Au, at low temperatures. This technology achieves high reliability and low electrical resistivity, contributing to energy saving and reduction of CO2 gas.
A new device developed by Washington State University physicist Yi Gu converts heat energy into electricity up to three times more efficiently than silicon. The multilayered composite material, called a van der Waals Schottky diode, has the potential to provide an extra source of power for electronics, cars, and other devices.
Scientists have created cyborg bacteria that can produce acetic acid from carbon dioxide using sunlight as energy, outperforming natural photosynthesis with an efficiency of over 80%. This technology has the potential to replace traditional petrochemical industries and provide a zero-waste solution.
Ludwig-Maximilians-Universität München researchers have developed a method for producing semi-conducting nanocrystals with controlled size, enabling the creation of color-tuned LEDs. The new method uses perovskite-based nanocrystals and allows for high color fidelity and industrial-scale production.
A University of Michigan team has created a method to add metallic nanoparticles into semiconductors with virtually no added manufacturing cost. The process enhances LED lighting efficiency and allows for precise control over the distribution of particles, potentially enabling future applications such as invisibility cloaks.
The study found that reducing oxygen in certain alloys can improve grain size stability, leading to stronger and more durable materials. Researchers developed nearly oxygen-free alloy powders with significant improvements in thermal stability.
Researchers demonstrate controlled spalling layer transfer technique to create multiple thin layers from a single GaN wafer, enabling improved thermal characteristics and lightweight stackability. This method also allows for measurement of material properties and can be applied at various stages of fabrication.
A new DARPA project aims to create an implanted brain-interface device with one million channels to support brain function. The device, developed by Columbia University researchers, uses silicon electronics and wireless powering for non-invasive stimulation and recording from the sensory cortex.
A team of engineers from the University of Wisconsin-Madison and the University at Buffalo has developed a powerful new photodetector that combines unique fabrication methods and light-trapping structures. The device increases light absorption in thin materials, enabling smaller optoelectronic devices with improved performance.
Researchers found that black phosphorus can be tuned by enclosing it in the right way, opening new possibilities for its use. The material's band gap and optical absorption changed dramatically when encapsulated.