Articles tagged with Semiconductors
A heat-free optical switch developed by KTH researchers can control single photons without generating heat, making it compatible with sensitive single-photon detectors. This technology is crucial for integrating optical switches and photon detectors in a single chip, paving the way for quantum computing and communication advancements.
Germany's Forschungszentrum Jülich and semiconductor manufacturer Infineon join forces to develop a semiconductor-based quantum processor using 'shuttling' of electrons. The QUASAR project aims to scale up quantum computing for industrial production.
Researchers from Chung-Ang University have successfully produced anion-exchanged porous SnTe nanosheets with ultra-low thermal conductivity and high-performance thermoelectrics. This breakthrough has significant implications for energy generation, refrigeration, transportation, and biomedical devices.
Researchers used terahertz time-domain spectroscopy to evaluate beta-gallium oxide semiconductor material properties. The technique revealed significant findings on the fundamental properties of the material at THz frequencies, providing valuable information for future power device development.
Researchers have developed a new method to accurately characterize the thickness of hundreds-layer semiconductor devices using optical spectral measurements and machine learning. The technique can determine layer thickness with an average error of 1.6 Å, helping control etching and deposition processes.
Researchers from Toyohashi University of Technology developed a semiconductor chip that can detect volatile gases in exhaled breath with high sensitivity at room temperature. The chip uses a polymer material that expands and contracts when gas is absorbed, allowing for precise measurement of gas adsorption.
A POSTECH research team has developed a CMOS-compatible 3D ferroelectric memory with ultralow power consumption and high speed. The new material and structure ensure low power consumption and high speed, achieving speeds several hundred times faster than conventional flash memory.
Researchers developed a multi-fidelity graph network approach to predict material properties with improved accuracy, enabling predictions for disordered materials. The new method reduced mean absolute errors by 22-45% compared to traditional approaches.
Researchers found that adding capsaicin to perovskite solar cells increases electron density and reduces nonradiative recombination, leading to more efficient and stable devices. The addition also promotes charge transport and suppresses heat losses.
Researchers have found that halide perovskite nanocrystals exhibit extraordinary energy transport properties, allowing them to travel longer distances than conventional nanostructures. This discovery has significant implications for the development of high-efficiency solar cells and light-emitting devices.
The study creates a new metal-like semiconductor material with excellent plasmonic resonance performance using an electron-proton co-doping strategy. The material achieves a metal-like ultrahigh free-carrier concentration, leading to strong and tunable plasmonic fields.
Researchers at Yokohama National University developed a 4-bit microprocessor called MANA, the world's first adiabatic superconductor microprocessor. The AQFP is capable of all aspects of computing and operates up to 2.5 GHz clock frequency.
A KAUST team has created a way to produce warm and cool white light LEDs by combining devices of different materials, eliminating the need for phosphors. The new device uses material defects to enhance current injection, emitting light across the entire visible spectrum.
Researchers discovered a way to create more efficient metamaterials using semiconductors and a novel aspect of physics that amplifies the activity of electrons. This breakthrough has the potential to increase resolution in medical scanning and scientific imaging, as well as reduce the size of supercomputers.
The event presents new research and innovations in photonics, including interactive sessions on nanophotonics, imaging, quantum research, and metalenses. Registration is free and open to the public.
Researchers from Skoltech and colleagues developed two models explaining the light-emitting behavior of semiconductor nanoplatelets, which are promising building blocks for optoelectronics. The models reveal trapping of excitons at surface defects and its interplay with diffusion as key reasons for complex kinetics.
Researchers have discovered a way to control the conduction type of tin monoselenide (SnSe) by doping with antimony, leading to improved thermoelectric performance. The findings offer a potential solution to harness waste heat and reduce global warming.
Researchers have directly visualized and measured elusive dark excitons in a new class of extremely thin semiconductors. This breakthrough technique could transform research and lead to significant advancements in fields like solar cells, LEDs, smartphones, and lasers.
Researchers at DGIST have devised a 2D-material-based stacked structure that reduces computing power consumption. The study measured the energy of excitons and trions in multistacked hBN/WS2 coupled quantum wells, revealing a gradual decrease in energy with an increase in stakes.
Researchers at UT have successfully created a novel superconductor using tin on a silicon semiconductor platform, marking the first intentional creation of an atomically thin superconductor. This breakthrough may lead to unforeseen advancements in technology and opens up new possibilities for electronic devices.
Researchers at Uppsala University have developed a new coating material for semiconductors that can produce fuels more sustainably using sunlight and electricity. The study shows that the coating reduces the voltage needed in the process, making it more energy-efficient.
Researchers discover carbyne's optical band gap is much smaller than previously thought, offering advantages for electricity conduction and future applications.
Scientists have found nanometre-sized areas of varying local density in amorphous silicon thin films. These regions, known as densely ordered domains, contain hardly any hydrogen and can contribute to the stability of the material.
Researchers at KIST and Jeonbuk National University created a new type of two-dimensional material that generates up to 40% more power than traditional materials when subjected to static electricity. This innovation enables the development of self-powered touch sensors that can recognize touch signals without electricity.
By straining diamond to change its electronic properties, researchers can dial it from insulating to highly conductive, or metallic. This breakthrough could lead to the development of new optical devices, quantum sensors, and high-efficiency solar cells.
Researchers at the University of Michigan have developed a self-erasing chip that can store authentication information or secret messages. The chip uses a new material that emits light in specific frequencies, which can be erased with a flash of blue light, making it suitable for anti-counterfeit measures and secure data transmission.
A POSTECH research team developed a technology to freely change structural colors using IGZO-based color filter, enabling low-power displays and quick color adjustments. The device can transmit vivid colors with extremely low light loss.
NASA's new pixel-based silicon detector technology has the potential to detect highly energetic photons in space with less power consumption. The AstroPix project is using complementary metal oxide semiconductor (CMOS) manufacturing process to create more efficient detectors.
Scientists have successfully fabricated red LEDs using indium gallium nitride, a material that can emit green, yellow, and red light. The developed LEDs offer improved stability at high temperatures compared to current InGaP-based devices.
Researchers from Basel and Bochum have experimentally confirmed the radiative Auger process in quantum dots, a crucial step for quantum communication. This discovery allows for precise determination of quantum mechanical energy levels, enabling better understanding of quantum systems.
Researchers developed a novel material that enables major leaps in electronic device miniaturization. The ultrathin boron nitride film boasts an extremely low dielectric constant and high breakdown voltage, making it attractive for practical electronic applications.
A new study successfully demonstrates the synthesis of ultrathin amorphous boron nitride films with extremely low dielectric constants, high breakdown voltages, and superior metal barrier properties. These materials have great potential as interconnect insulators in next-generation electronic circuits.
University of Washington researchers have successfully cooled a solid-state semiconductor material using an infrared laser, achieving a temperature drop of up to 20 degrees C. The method has wide potential applications in fields such as quantum communication and scientific instruments.
Research by Alexei Frolov finds distinct relationships between particle masses and cluster properties, improving understanding of semiconductors' optical spectra. The study's formulas could be adapted to describe clusters with varying masses, enabling finer tuning of semiconductor properties.
A team of physicists at the Universität Leipzig is developing an ultra-compact spectrometer with potential applications in industries such as food, medicine, and textiles. The new instrument could make quality control cheaper and more accessible, allowing for widespread adoption and democratizing access to spectral analysis.
Scientists at the University of Strathclyde have created a new form of high-resolution imaging technology using miniature devices that utilize terahertz radiation. This non-invasive method allows for accurate detection of small tumors and could lead to improved cancer diagnosis and treatment.
Researchers at Arizona State University have discovered a mechanism to produce optical gain in 2D semiconductor materials, enabling the creation of low-power nanolasers. This breakthrough could lead to game-changing applications in supercomputing and data centers.
Researchers at Rensselaer Polytechnic Institute have discovered an optical version of the quantum hall effect, unlocking new properties of excitons in two-dimensional semiconductors. This breakthrough could lead to advancements in quantum computing, memory storage, and solar energy harvesting.
Scientists at University of Copenhagen have discovered a new way to create topological superconductivity and Majorana zero modes using a cylindrical superconductor surrounding a semiconductor, potentially offering an alternative route for qubits. This breakthrough unifies two existing ideas in quantum mechanics.
Researchers at the University of Tokyo have created a tin dioxide semiconductor with the highest mobility ever reported, enabling more efficient solar panels and touch-sensitive displays. This breakthrough could lead to improved transparency and conductivity in materials, benefiting various industries.
Researchers at Helmholtz-Zentrum Berlin have developed a new tandem solar cell made of CIGS and perovskite, achieving an efficiency of 24.16 percent. This innovation has created a new branch on the NREL chart for two-terminal tandem cells.
Researchers have fabricated high-performance mid-infrared laser diodes directly on microelectronics-compatible silicon substrates, paving the way for low-cost sensors for real-time environmental sensing. The new fabrication approach reduces costs by using industry-standard processing techniques.
Researchers discovered a new mechanism of optical gain in two-dimensional materials that requires only extremely low input power. This breakthrough has significant implications for the development of energy-efficient photonic devices, potentially reducing the need for high electrical power.
Researchers at New York University develop guidelines for optimal band gap values in wide-band gap semiconductors for efficient underwater use. Various materials, such as organic and alloys, are shown to be suitable for deep waters, potentially extending the range of autonomous submersible vehicles.
Researchers at Tokyo Institute of Technology and Socionext Inc. designed the smallest all-digital PLL, reducing area, power consumption, and jitter while achieving best performance. The synthesizable PLL is commercially viable for 5 nm semiconductors, crucial for cutting-edge applications like AI and IoT.
Researchers from ITMO University have proposed a technology for manufacturing high-efficiency solar cells based on A3B5 semiconductors integrated on a silicon substrate, which may increase the efficiency of existing photovoltaic converters by 1.5 times. The new technology could lead to more effective and affordable solar energy solutions.
Researchers at Hokkaido University have developed a method to grow nanosized semiconductors on a gold surface using a gold butterfly-shaped nanostructure. The approach uses localized heat to trigger hydrothermal synthesis, enabling precise control over semiconductor formation.
Researchers at Northwestern University have developed a new semiconductor neutron detector that can absorb thermal neutrons and generate electrical signals. The material is highly efficient, stable, and can be used in small, portable devices for field inspections or large detectors for national security applications.
Researchers have created a new type of semiconductor neutron detector that boosts detection rates by reducing the number of steps involved in neutron capture and transduction. The LiInP2Se6 material converts neutrons into pairs of charged electrons and holes, generating a current directly detectable thermal neutrons.
Sufei Shi's lab at Rensselaer Polytechnic Institute has been working on fabricating high-quality transition metal dichalcogenides (TMDCs) to study their properties and potential applications. The researchers have found an exciting particle called an exciton, which holds a lot of energy that can survive at room temperature.
Researchers at the University of Illinois have developed a new heat model that can help improve the thermal conductivity and reduce defects in gallium nitride semiconductors. This could lead to longer-lasting electronic devices with improved reliability.
Researchers have discovered point defects in beta gallium oxide, which could impact its efficiency as a semiconductor. The defects can provide opportunities for unprecedented control of the material's properties if properly manipulated.
Researchers have successfully controlled the optical properties of semiconductors using acoustic waves at room temperature. This breakthrough enables the dynamical manipulation of excitonic properties at high speed, opening up new avenues for applications such as acousto-optic devices and sensor technology.
Researchers have developed a new material that combines semiconducting properties with intrinsic stretchability and full degradability. The material can be stretched to twice its normal length without compromising electrical performance and degrades completely within 10 days in a weak acid.
Researchers from Cardiff University have discovered metastability in gallium arsenide compound semiconductor material, a phenomenon that could affect device stability. The findings could lead to improved materials and structures for electronic devices, such as smartphones, GPS, and satellites.
Researchers have clarified a new synthesis mechanism for transition metal dichalcogenides (TMD), a type of semiconductor atomic sheet. The breakthrough enables the large-scale integration of atomic-order materials, paving the way for next-generation flexible electronics.
Researchers found that dislocations negatively impact carrier dynamics, leading to a four-fold increase in electron lifetime when defect densities are reduced. Halide perovskite has improved from 3% to 25% efficiency over the past decade.
A team of researchers discovered an effective method for removing lattice defects from crystals, particularly useful for semiconductor materials. By adding hydrogen and then annealing at low temperatures, they created an ordered phase of boron with a large unit cell, overcoming previous difficulties in achieving this structure.
Researchers at Tohoku University developed a new method to quantify the efficiency of crystal semiconductors, a crucial step towards creating more efficient light-emitting diodes (LEDs) and solar cells. The method uses photoluminescence spectroscopy to detect the emitted light energy, providing a unique indicator of the crystal's quality.
A team of engineers at Washington University in St. Louis has found a more stable, less toxic semiconductor for solar applications, made up of potassium, barium, tellurium, bismuth and oxygen (KBaTeBiO6). The new compound has a band gap of 1.88 eV, which is close to the halide perovskites, making it promising for solar cell applications.