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How robots can help find the solar energy of the future

Researchers at Osaka University use a robotic system to automate key experimental processes, accelerating the search for new materials. They evaluate 576 thin-film semiconductor samples using photoabsorption spectroscopy, optical microscopy, and time-resolved microwave conductivity analyses.

SourceOsaka University·JournalJACS Au·TypeExperimental study·DateOct 30, 2023

A superatomic semiconductor sets a speed record

Researchers at Columbia University have created the fastest and most efficient semiconductor yet, a superatomic material called Re6Se8Cl2. Excitons in this material can bind with phonons to create acoustic exciton-polarons that move faster than electrons in silicon, potentially leading to devices with speeds of femtoseconds.

SourceColumbia University·JournalScience·DateOct 26, 2023

Solving quantum mysteries: New insights into 2D semiconductor physics

Researchers from Monash University have introduced a new theoretical study on quantum impurities, exploring their behavior in two-dimensional semiconductors. The 'quantum virial expansion' method sheds light on the complex interactions between impurities and their surroundings in 2D materials.

SourceARC Centre of Excellence in Future Low-Energy Electronics Technologies·JournalPhysical Review Letters·TypeComputational simulation/modeling·DateOct 15, 2023

Silicon ally: Penn engineers grow full wafers of high-performing 2D semiconductor that integrates with state-of-the-art chips

Researchers at the University of Pennsylvania have grown a high-performing 2D semiconductor, indium selenide (InSe), to industrial-scale wafers. The team's success hinged on a growth technique that overcame InSe's atomic structure quirks, producing a material with uniform chemical and crystalline properties.

Gwangju Institute of Science and Technology researchers reveal the effect of AIN surface pits on GaN remote epitaxy

GIST researchers found that nano-sized pits on AlN surfaces cause graphene degradation at higher temperatures, leading to GaN film exfoliation failure. The study's results demonstrate the importance of substrate chemical and topographic properties for successful remote epitaxy.

SourceGIST (Gwangju Institute of Science and Technology)·JournalACS Nano·TypeExperimental study·DateSep 12, 2023

A new LED design for next-level realism in immersive displays

Researchers from Meijo University and King Abdullah University of Science and Technology have developed high-performance micro-LEDs capable of meeting the brightness and definition demands of modern immersive reality technologies. The LEDs use gallium indium nitride semiconductors and can produce full-color imaging at high resolution.

SourceMeijo University·JournalApplied Physics Express·TypeExperimental study·DateSep 7, 2023

Layered and traditional semiconductors heterogenous integration open door for post Moore era

Scientists have demonstrated techniques to fabricate layered semiconductors with suitable bandgap and band structure, offering a new class of materials in photoelectronic applications. Heterogeneous integration of TMDs and traditional semiconductors enables the exploration of next-generation electronic and optoelectronic devices.

SourceInternational Journal of Extreme Manufacturing·JournalInternational Journal of Extreme Manufacturing·DateAug 16, 2023

The joint research team of DGIST and Seoul National University reveals why moisture (water) affects quantum crystals!

A joint research team from DGIST and Seoul National University developed an imaging platform to study the reaction intermediates in the degradation process of semiconductor nanocrystal quantum dots. They found that cadmium sulfide (CdS) decomposition forms amorphous intermediates, leading to surface structural degradation.

A platform for integrated spectrometers based on solution-processable semiconductors

A new platform for integrated spectrometers has been proposed using solution-processable semiconductors, enabling ultra-narrowband detection and spectral tuning. The platform exploits conjugated-BIC photonics, allowing for high spectral resolution and wide tunability.

Enhanced light absorption in thin silicon photodetectors with photon-trapping structures

A new approach boosts light absorption in thin silicon photodetectors with photon-trapping structures, increasing the absorption efficiency over a wide band in the NIR spectrum. The findings demonstrate a promising strategy to enhance the performance of Si-based photodetectors for emerging photonics applications.

SourceSPIE--International Society for Optics and Photonics·JournalAdvanced Photonics Nexus·DateJul 26, 2023

Device makes hydrogen from sunlight with record efficiency

Rice University engineers have created a device that converts sunlight into hydrogen with unprecedented efficiency, opening up new possibilities for clean energy and sustainable fuel production. The innovative technology uses halide perovskite semiconductors and electrocatalysts in a single, durable device.

SourceRice University·JournalNature Communications·TypeExperimental study·DateJul 20, 2023

New material could hold key to reducing energy consumption in computers and electronics

Researchers at the University of Minnesota have created a thin film of a unique semimetal material that can generate more computing power and memory storage while using significantly less energy. The study, published in Nature Communications, has important findings about the physics behind its unique properties.

SourceUniversity of Minnesota·JournalNature Communications·TypeExperimental study·DateJul 13, 2023

A ferroelectric transistor that stores and computes at scale

A new FE-FET design demonstrates record-breaking performances in computing and memory, achieving large memory window with impressively small device dimensions. The combination of molybdenum disulfide and aluminum scandium nitride materials enables energy-efficient devices for both computing and non-volatile memory applications.

Cutting edge transistors for semiconductors of the future

Researchers at Lund University have created ferroelectric 'grains' that control tunnel junctions in transistors, allowing for individual-level control and optimization of material properties. This breakthrough enables the development of new circuit architectures for neuromorphic computing and energy-efficient semiconductors.

SourceLund University·JournalNature Communications·DateJul 3, 2023

Breakthrough innovation could solve temperature issues for source-gated transistors and lead to low-cost, flexible displays

Researchers from the University of Surrey have developed a new design for source-gated transistors that improves thermal stability and retains benefits like low power consumption and high signal amplification. This innovation could lead to the creation of low-cost, flexible displays that use minimal energy.

SourceUniversity of Surrey·JournalIEEE Transactions on Electron Devices·DateJun 22, 2023

University of Toronto Engineering researchers are using electric fields to control the movement of defects in crystals

Researchers from University of Toronto Engineering, Dalhousie University, Iowa State University, and Peking University have successfully controlled the motion of dislocation in a single-crystalline zinc sulfide using an external electric field. This discovery has significant implications for improving the properties and manufacturing p...

CityU researchers invent a low-temperature synthesis method for high-quality tellurium nanomesh for next-generation electronics

A collaborative team led by City University of Hong Kong researchers invented a low-temperature vapour-phase growth method to produce large-scale synthesis of semiconducting tellurium nanomesh. The new method enables the scalability and cost-effectiveness of nanomesh for next-generation electronics.

SourceCity University of Hong Kong·JournalNature Communications·TypeExperimental study·DateJun 16, 2023

New recipes for better solar fuel production

A team of researchers from China and the UK has developed new ways to optimise the production of solar fuels by creating novel photocatalysts. These photocatalysts, such as titanium dioxide with boron nitride, can absorb more wavelengths of light and produce more hydrogen compared to traditional methods.

SourceXi'an Jiaotong-Liverpool University·JournalApplied Surface Science·TypeExperimental study·DateJun 11, 2023

New superconducting diode could improve performance of quantum computers and artificial intelligence

A University of Minnesota team developed a new superconducting diode that is more energy efficient and versatile than past models. The device can process multiple electrical signals at once and has gates to control the flow of energy, which could enable faster quantum computers for industry use and enhance AI performance.

SourceUniversity of Minnesota·JournalNature Communications·TypeExperimental study·DateJun 6, 2023

Absolute vs. relative efficiency: How efficient are blue LEDs, actually?

Researchers at University of Illinois Urbana-Champaign found that the absolute internal quantum efficiency (IQE) of InGaN-based blue LEDs can be as low as 27.5%, drastically lower than the standard assumption. The study's results suggest a new approach to measuring IQE, providing a more accurate picture of LED performance.

SourceBeckman Institute for Advanced Science and Technology·JournalApplied Physics Letters·DateMay 26, 2023

Breaking the heat barrier of computing innovation

Researchers have developed a new technology that could revolutionize computing by moving beyond the limitations of traditional semiconductors. Coherent antiferromagnetic spintronics enables information to travel without generating significant heat, potentially leading to a hundredfold increase in processing speed and energy savings.

SourceUniversity of California - Riverside·JournalNature Materials·TypeLiterature review·DateMay 9, 2023

Fabrication and applications of van der Waals heterostructures

The article discusses the fabrication and applications of van der Waals heterostructures (vdWHs), which have unique properties and potential for exploring condensed matter physics. Various strategies for fabricating vdWHs were developed in the past decade, leading to promising functionalities in diverse fields.

SourceInternational Journal of Extreme Manufacturing·JournalInternational Journal of Extreme Manufacturing·DateApr 25, 2023

KAIST researchers find the key to overcome the limits in X-ray microscopy​

Researchers at KAIST have successfully developed a new X-ray microscope technology that can overcome the resolution limitations of existing microscopes. This breakthrough enables high-resolution imaging of nanoscale structures, with a resolution of 14 nm, which is comparable to that of electron microscopes. The technology uses random d...

SourceThe Korea Advanced Institute of Science and Technology (KAIST)·JournalLight Science & Applications·TypeMeta-analysis·DateApr 11, 2023