Articles tagged with Silicon
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Researchers have created prototype computer electronics on the nanoscale using organic and inorganic nanowires. The new material has a low operational current, high mobility, and good stability, making it a promising alternative to silicon transistors.
A Yale team has discovered a repulsive light force that can be used to control components on silicon microchips, paving the way for faster and more efficient nanodevices. The researchers found that by manipulating out-of-phase light beams, they could create a controlled repulsive force with tunable intensity.
Researchers at the University of Leicester have developed a new synthesis method to create fluorescent silicon nanoparticles that can track the uptake of drugs by cells. The nanoparticles, containing just a few hundred silicon atoms, show stable fluorescence over three months and have potential applications in biomedical sensors.
Researchers at the University of Texas at Austin have successfully synthesized large-area graphene on copper foils, which may lead to the development of faster computers and electronic devices. The graphene's high electron- and hole-mobility enables extremely high switching speeds in nanoelectronic devices.
Researchers at Berkeley Lab and UC Berkeley have created a nanostructured silicon 'carpet cloak' that conceals objects from view, demonstrating invisibility in two dimensions. The all-dielectric material is easy to fabricate and scalable, paving the way for potential applications in microscopes and computers.
Scientists at Cornell University have successfully created a new ferroelectric material that can store electronic information instantly, paving the way for next-generation memory devices. The research involves depositing strontium titanate on silicon to create a special state called ferroelectric.
Engineers create method for stamping multiple graphene sheets onto substrate in precise locations, enabling mass production of smaller, faster electronics. The technique holds promise for delivering quantum mechanical effects and enabling new kinds of electronics.
Researchers developed a surface treatment that increases light absorption by trapping light in three-dimensional structures and making the surfaces self-cleaning, allowing rain or dew to wash away dust and dirt. The treatment mimics the superhydrophobic surface of the lotus leaf, boosting photovoltaic cell efficiency by up to 2%.
Researchers at MIT have developed a new material called graphene that can enable microchips to operate at much higher speeds than current silicon chips. The new technology uses a single transistor and produces a clean output signal, leading to faster computers and cellphones.
Researchers at NEC Laboratories America have developed a simpler receiver to reduce costs of tomorrow's Internet. The device uses a direct-detection receiver that relies on a narrow optical carrier signal, enabling reliable detection of signals sent at 40G.
Researchers at Carnegie Mellon University have established evidence of a liquid-liquid phase transition in supercooled silicon, revealing two distinct forms of liquid silicon with unique properties. This breakthrough uses rigorous computer calculations and quantum mechanics to gain a better understanding of materials behavior.
Researchers have developed an organic material with high optical quality and strong ability to mediate light-light interaction, which can fill the slot between waveguides on integrated optical circuits. This innovation enables fast data processing in all-optical networks, potentially increasing internet speed.
Researchers have created miniscule silicon flakes that glow brightly, slowly releasing cancer drugs before breaking down into harmless by-products. The particles showed promising results in mice, reducing tumor growth over several weeks.
A new amplifier invented at UC San Diego has the potential to revolutionize high capacity wireless communications systems. The Cascaded Constructive Wave Amplifier can amplify signals at millimeter wave frequencies, enabling data transfer rates of up to 10 Gigabits per second over a kilometer.
Researchers discovered that nanoscale lead atoms on silicon exhibit a fluid-like motion, enabling the formation of uniform-height islands in minutes. The unique behavior suggests that quantum mechanics governs the growth process, allowing for rapid self-assembly and potentially simplifying material properties manipulation.
Researchers create a process that can produce nano-devices with features as small as 13 nanometers, outperforming silicon and steel. The use of bulk metallic glasses allows for molding fine details without grain size limitations.
Researchers used computer modeling and experimentation to investigate how cracks grow at low speeds in silicon, finding rearrangements of atoms associated with ductile materials can occur near the crack tip. This instability can lead to macroscopic changes in the path of the crack, leaving behind ridges on the crack surface.
Researchers have developed electronics that can withstand complex deformations, including twisting. Their 'pop-up' technology has been improved to create circuits that can bend, stretch, and twist, enabling new applications in medical and athletic fields.
Silicon nanowires show highly repeatable nucleation process, allowing for predictable growth and design of electronic systems. The research could enable the continuation of Moore's law by providing a new manufacturing method for nanowire-based electronics.
Researchers have created reliable nanopatterns of a spin-transition compound on silicon oxide chips, paving the way for new molecular storage media. The development uses special unconventional micro- and nanolithographic techniques to print neutral iron(II) complexes onto silicon wafers in the form of fine lines.
A new electroplating process that joins many silicon nanowires to prepatterned electrodes in parallel has been chosen for the Nano 50 Award. This technique allows for lower-cost production of semiconducting nanowires used in electronic sensor arrays.
Researchers at Northwestern University have developed a new camera technology that uses a curved surface to capture images, similar to the human eye. The technology, which has been published in Nature, has shown promising results in producing clearer and more detailed images than traditional cameras.
Researchers at University of Illinois and Northwestern University develop high-performance hemispherical camera using stretchable optoelectronics. The camera's design is based on the human eye, with a simple lens and hemispherical detector, enabling broader field of view and improved illumination uniformity.
Researchers at the University of Illinois have demonstrated an approximate cloaking effect using concentric rings of silicon photonic crystals. The technique could potentially create a practical solution for optical cloaking by bending light around objects, making them invisible.
A new method of generating high-power signals at frequencies up to 1.16 THz has been proposed, potentially replacing X-rays for medical imaging and security applications. The technique uses nonlinear constructive interference on an ordinary silicon chip.
A study by Drs. Sophia Kamenidou and Todd J. Cavins found that silicon supplementation improved horticultural traits in greenhouse-produced sunflowers, such as increased stem diameter and flower quality, but also caused growth abnormalities at high concentrations.
Researchers at Shenyang National Laboratory for Materials Science developed a new material using carbon nanotubes to prevent lithium batteries from losing charge capacity over time. The new material achieved a discharge capacity of 727 milliamp hours per gram after twenty cycles, outperforming traditional sugar-coated silicon particles.
Researchers have developed a technique to arrange individual carbon nanotubes into circuit patterns with high accuracy. Meanwhile, superconductors can harness quantum physics to boost computer power, potentially creating more powerful qubits for quantum computers.
Scientists have developed a new form of stretchable silicon integrated circuit that can wrap around complex shapes, such as spheres and aircraft wings. The new design allows the circuit to be folded and stretched without reducing electrical performance.
Graphene outperforms silicon in terms of mobility, allowing for high-speed electronic devices and biochemical sensors. Researchers found that thermal vibrations have a small effect on electrons in graphene, making it promising for various applications.
Appelbaum's pioneering research harnesses the magnet-like spin property of electrons to create faster, more energy-efficient devices. His work supports the development of a new logic architecture for electronics.
Scientists have created a new material featuring 'nanonails' that can repel almost any liquid, but become wettable when an electric charge is applied. This innovative surface has potential applications in biomedical technology and battery life extension.
Researchers at Berkeley Lab have developed a novel method to synthesize silicon nanowires with exceptionally rough surfaces, which exhibit high thermoelectric efficiency. This breakthrough technology could enable the widespread adoption of thermoelectric materials in various applications.
A team of UC Riverside physicists, led by Gail Hanson, contributed to the installation of the CMS Silicon Strip Tracking Detector at CERN. The detector will help discover new physics and improve our understanding of the universe.
Stanford researchers have developed a new type of lithium-ion battery using silicon nanowires, which can store up to 10 times more electricity than traditional batteries. This breakthrough could make Li-ion batteries more attractive for electric cars and home energy storage.
Researchers from IBM, Kyoto University, Northwestern, and the University of New Mexico have achieved significant breakthroughs in silicon nanophotonics. The longest photon lifetime of 2.1 ns was observed in a photonic crystal nanocavity, while advanced microresonators with quality factors over 100 million were demonstrated.
Scientists at NRL generate and detect a pure spin current in silicon, allowing control over the spin orientation. This enables the development of devices that rely on electron spin rather than charge, promising higher performance with reduced power consumption.
NIST nanowires have high Q factors, indicating stable vibrations, making them suitable as oscillators in nano-electromechanical systems. The wires' flat surfaces and material properties reduce noise and increase heat capacity.
Researchers at the University of Michigan have developed a new technology to automate post-silicon debugging, using puzzle-solving search algorithms to diagnose problems early on. This reduces parts of the process from days to hours, making it possible to produce computer chips that work correctly under all scenarios.
Researchers at the University of Delaware successfully transport an electron's spin a marathon distance through a silicon wafer, confirming its potential for spintronics. The finding opens doors to cheaper, faster, and lower-power processing and storage of data.
Researchers developed a method to grow nanotube forests on silicon chips, outperforming conventional thermal interface materials. The technique uses dendrimers and metal catalyst particles to create a forest of carbon nanotubes that conform to the heat sink's surface, improving heat conduction and reducing the size of cooling systems.
Scientists have developed a spectroscopic technique to measure magnetic properties of thin film edges, which become dominant at the nanoscale. The method allows for prediction of behavior in similar structures, impacting nanoscale electronics design.
University of Wisconsin-Madison engineers successfully blended modern semiconductor tech and nanomachines, opening doors to new tiny mechanical devices. The new work enables sensors capable of measuring single biological molecules and has implications for solar energy cells, battery technology, and highly sensitive light-emitting diodes.
A team of researchers has created an innovative method for producing tiny conductive nano-wires on silicon chips using self-assembling molecules. The process can produce nano-wires that are 5,000 times longer than they are wide, meeting the need for connecting smaller transistors and electronic components.
Researchers at UC-Santa Barbara have built the world's first mode-locked silicon evanescent laser, paving the way for integrated circuits that combine lasers and electronic functions on a single chip. This technology enables higher data transmission speeds, lower power consumption, and more compact devices.
By creating a mode-locked silicon evanescent laser, researchers have demonstrated the ability to produce stable short pulses of laser light at high repetition rates, up to 40 GHz, suitable for high-speed data transmission and other optical applications.
Silicon nanoparticles can significantly enhance the performance of solar cells by improving power output and reducing heat. By integrating a high-quality film of silicon nanoparticles onto silicon solar cells, researchers achieved a 60% improvement in power performance in the ultraviolet range of the spectrum.
Researchers at the Naval Research Laboratory (NRL) have successfully injected spin-polarized electrons from a ferromagnetic metal contact into silicon, producing a large electron spin polarization. This achievement is crucial for developing devices that rely on electron spin rather than electron charge, known as semiconductor spintronics.
The NIST/NCSU team observed the spontaneous assembly of organosilane molecules into a monolayer film, finding wavelike ordering with an expanded interface. The findings support recent theoretical modeling and have implications for understanding self-propagating chemical reactions and ordering phenomena.
Researchers have fabricated a novel memory device combining silicon nanowires with traditional SONOS technology, enabling more reliable data storage and easier integration into commercial applications. The device boasts simple read, write, and erase capabilities, high memory retention, and large on/off current ratio.
Researchers at UCR have successfully demonstrated the remote operation of micromachines using light to change the Casimir force. The study uses silicon plates with varying carrier densities and training a beam of light on them to alter the plate's properties.
Researchers at the University of Delaware have demonstrated the transport and coherent manipulation of electron spin in silicon, a crucial step towards harnessing its potential in spintronics. The discovery could lead to exponentially faster and more powerful electronics, including quantum computers.
A recent breakthrough in solar cell technology has shown a 16-fold enhancement in light absorption, boosting efficiency from 8-10% to 13-15%. This improvement could make solar energy more affordable for homeowners, with the price of an installed system potentially falling by up to AUD$5,000.
An interdisciplinary team predicts the scent intensity of lily-of-the-valley fragrance components using a computer model of their olfactory receptors. The study confirms that electronic surface structures determine the interaction between scented molecules and human scent receptors.
Chemists at UCSD develop a device that captures sunlight, converts it to electrical energy, and splits carbon dioxide into carbon monoxide and oxygen. This process has the potential to reduce greenhouse gas emissions, produce industrial chemicals, and save fuel.
Researchers have developed a simple and scalable assembly to integrate carbon nanotube structures on silicon chips, improving thermal management without increasing device weight. The cooling performance is comparable to that of copper, a significant advantage in miniaturized electronics.
Scientists have created a new class of gas sensors using the three-dimensional shells of diatoms, which can detect nitric oxide at high sensitivity and speed. The converted shells retain their intricate shapes and nanoscale detail, making them useful for battery electrodes, chemical purifiers, and other applications.
Researchers at the University of Manchester have developed a new type of transistor made from graphene, which is only one atom thick and less than 50 atoms wide. This innovation could lead to the development of faster computer chips by allowing for the rapid miniaturization of electronics.
A team of researchers has designed a biochip platform using a novel 'daisy' molecule that enables efficient gene expression and protein production without living cells. The system allows for the patterning of genes on silicon surfaces, enabling selective trapping of specific proteins with high spatial resolution.
Researchers at MIT have developed a novel way to integrate photonic circuitry on a silicon chip, enabling mass-manufactured devices with unprecedented system performance. The new technology will enable supercomputers on a chip with unique high-speed capabilities for signal processing and spectroscopy.