Add BrightSurf on Google Email

When does a conductor not conduct?

A new atomically-thin material has been discovered that can switch between an insulating and conducting state by controlling the number of electrons. This property makes it a promising candidate for use in electronic devices such as transistors.

SourceARC Centre of Excellence in Future Low-Energy Electronics Technologies·JournalNature Communications·TypeExperimental study·DateApr 29, 2024

When D turns to F, quantum matter is A-plus

Researchers have found that certain materials can exhibit D-wave effects, entangled with other quantum states, allowing for efficient coupling at higher temperatures. This breakthrough bridges condensed matter physics subfields and could enable practical applications of quantum computing.

SourceRice University·JournalScience Advances·TypeComputational simulation/modeling·DateAug 2, 2023
Apple Watch Series 11 (GPS, 46mm)

Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.

Thin mica shows semiconducting behavior, say scientists in new study

Researchers observe a significant increase in electrical conductivity when mica is thinned down to few molecular layers, exhibiting semiconductor-like behavior. The findings suggest that thin mica flakes have the potential to be used in two-dimensional electronic devices with exceptional stability and durability.

SourceShibaura Institute of Technology·JournalPhysical Review Applied·TypeExperimental study·DateJul 7, 2022

A bright future: Seeking a third generation of better performing solar cells

Researchers propose a novel pathway to realizing hot carrier solar cells, which can exceed the typical efficiency limit on solar cells. The approach involves isolating hot carriers within higher energy valleys in semiconductors, reducing energy loss to heat.

SourceSPIE--International Society for Optics and Photonics·JournalJournal of Photonics for Energy·DateApr 5, 2022

A ‘zigzag’ blueprint for topological electronics

Researchers have confirmed a novel quantum topological material for ultra-low energy electronics, reducing energy consumption by a factor of four. The study reveals the potential of zigzag-Xene-nanoribbons to make topological transistors with robust edge states and low threshold voltage.

SourceARC Centre of Excellence in Future Low-Energy Electronics Technologies·JournalApplied Physics Reviews·TypeExperimental study·DateMar 8, 2022

Suppressing the Auger recombination process in quantum dots

The study reveals that manipulating the transition dipole moment of excitons in quantum dots can suppress Auger recombination. By combining with external structures, researchers achieved a new way to control the nonradiative process, potentially leading to improved efficiency of QD-based devices.

SourceInstitute for Basic Science·JournalAdvanced Optical Materials·TypeExperimental study·DateJan 5, 2022

Quantum confinement discovered in porous nano-photocatalyst

A research team discovered a quantum confinement effect in a 3D-ordered macroporous structure of BiVO4, enabling hydrogen production under visible light. The study found that the 3DOM structure had higher photocatalysis efficiency and produced more oxygen than its plate-like counterpart.

SourceCity University of Hong Kong·JournalACS Energy Letters·TypeExperimental study·DateNov 12, 2021
CalDigit TS4 Thunderbolt 4 Dock

CalDigit TS4 Thunderbolt 4 Dock simplifies serious desks with 18 ports for high-speed storage, monitors, and instruments across Mac and PC setups.

Water as a metal

Researchers produce aqueous solution with metallic properties for the first time by dropping a tiny droplet of liquid alkali metal alloy into water. The resulting 'metallic water' exhibits characteristic spectroscopic properties, including a golden glow and conduction band.

SourceHelmholtz-Zentrum Berlin für Materialien und Energie·JournalNature·TypeExperimental study·DateJul 28, 2021

Metallic water prepared for first time under terrestrial conditions

Researchers at IOCB Prague develop a method to prepare metallic water without high pressure, by dissolving electrons from alkali metal in water vapor. The resulting solution lasts several seconds and contains dissolved alkali cations and hydroxide and hydrogen.

SourceInstitute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences (IOCB Prague)·JournalNature·TypeExperimental study·DateJul 28, 2021

Unexpectedly-fast conduction electrons in Na3Bi

A study finds that exchange and correlation effects significantly impact the electron mobility of Na3Bi, leading to unexpectedly fast conduction electrons. The research uses a scanning-tunnelling microscope technique to map the electronic structure in the material.

SourceARC Centre of Excellence in Future Low-Energy Electronics Technologies·JournalPhysical Review B·DateAug 14, 2020
Rigol DP832 Triple-Output Bench Power Supply

Rigol DP832 Triple-Output Bench Power Supply powers sensors, microcontrollers, and test circuits with programmable rails and stable outputs.

A theoretical boost to nano-scale devices

A new computational approach calculates the quasi-Fermi levels in molecular junctions, offering a better understanding of semiconductor devices at the nano-scale. This breakthrough could enable more accurate descriptions of underlying physics and improve the efficiency of nano-scale transistors.

SourceThe Korea Advanced Institute of Science and Technology (KAIST)·JournalProceedings of the National Academy of Sciences·DateMay 17, 2020

Radiative decay rates in Si crystallites with a donor ion

Scientists calculate radiative recombination rates in silicon nanocrystals with phosphorus or lithium donor ions, finding accelerated transitions at higher temperatures. The introduction of donors opens channels for nonradiative de-excitation but can also lead to improved optical properties.

SourceLobachevsky University·JournalJournal of Applied Physics·DateMay 24, 2018

A milestone in petahertz electronics

Researchers observed attosecond optical-field-enhanced carrier injection into the GaAs conduction band, a process previously thought to be impossible. Intra-band motion plays a significant role in this phenomenon, enhancing the number of electrons excited into the conduction band.

SourceETH Zurich Department of Physics·JournalNature Physics·DateMar 12, 2018
Davis Instruments Vantage Pro2 Weather Station

Davis Instruments Vantage Pro2 Weather Station offers research-grade local weather data for networked stations, campuses, and community observatories.