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Photonic chip that ‘fits together like Lego’ opens door to semiconductor industry

Researchers at the University of Sydney have invented a compact silicon semiconductor chip integrating electronics with photonic components, significantly expanding radio-frequency bandwidth and filter control. The new technology has potential applications in advanced radar, satellite systems, wireless networks, and telecommunications,...

SourceUniversity of Sydney·JournalNature Communications·TypeExperimental study·DateNov 30, 2023

A novel lightweight wearable device to perform balance exercises at home

Researchers developed a lightweight wearable balance exercise device to improve reactive postural control in older adults, reducing the risk of falls. The device uses pneumatic artificial muscles to generate unexpected perturbations, resulting in improved peak displacement and velocity.

SourceTokyo University of Science·JournalIEEE Journal of Translational Engineering in Health and Medicine·TypeExperimental study·DateNov 27, 2023

Flexing the lifespan of electronic devices

A team of researchers from Northwestern University and the University of Pittsburgh has received a $600K NSF Award to explore novel learning-enabled cyber-physical systems (LE-CPSs) for building flexibility into hardware. This could lead to extended device lifespan, reduced e-waste, and improved sustainability.

How to build greener data centers? Scientists say crank up the heat

Scientists propose new temperature guidelines for data centers that may help reduce energy consumption and save money. Researchers found that raising the temperature to around 41°C could lead to significant savings, with some areas able to rely entirely on free-cooling, reducing energy costs by up to 56%.

SourceCell Press·JournalCell Reports Physical Science·TypeComputational simulation/modeling·DateOct 18, 2023

Miniaturized FSO breakthrough unlocks high-speed wireless communication anywhere

Researchers at Nanjing University have developed a miniaturized FSO system achieving an astonishing 9.16 Gbps bandwidth over 1 km link using readily available commercial fiber transceiver modules. The system enables automatic tracking and precision acquisition, eliminating the need for optical amplification.

SourceSPIE--International Society for Optics and Photonics·JournalAdvanced Photonics Nexus·DateOct 17, 2023

Novel battery technology with negligible voltage decay developed at CityU, a world’s first

A breakthrough in battery technology has been achieved by City University of Hong Kong, overcoming the persistent challenge of voltage decay in lithium-ion batteries. The new development stabilises a unique honeycomb-like structure within the cathode material, resulting in longer-lasting and more efficient batteries.

SourceCity University of Hong Kong·JournalNature Energy·TypeExperimental study·DateSep 28, 2023

Electrons take flight at the nanoscale

A new device design inspires improved integrated circuit designs by visualizing electric current flow lines around sharp bends. The research enables better understanding of heat generation in electronic devices, leading to more efficient circuit creation and reduced risk of overheating.

SourceUniversity of California - Riverside·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateSep 18, 2023

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

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

Unveiling the potential of radiofrequency-operated 2D biochemical sensor in the internet-of-things era

Researchers have developed ultra-thin and flexible 2D biochemical sensors with high sensitivity for detecting target substances, revolutionizing sensing technology. However, integrating these sensors into comprehensive systems for large-scale industrial manufacturing poses significant challenges.

SourceInternational Journal of Extreme Manufacturing·JournalInternational Journal of Extreme Manufacturing·DateJul 27, 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

Redox-based transistor as a reservoir system for neuromorphic computing

Researchers develop an ionic device utilizing redox reactions to achieve a high number of reservoir states, enabling efficient complex nonlinear operations. The device demonstrated remarkable performance in solving second-order nonlinear dynamic equations and predicting future values with low mean square prediction error.

SourceTokyo University of Science·JournalAdvanced Intelligent Systems·TypeExperimental study·DateJul 3, 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

Now you can be comfortable in your e-skin

Osaka University researchers develop a cellulose-based material, called nanopaper e-skin, that makes effective contact with the skin while maintaining breathability and comfort. The substrate can withstand deformation, sterilization, and environmental sustainability, making it a promising candidate for electrophysiological monitoring.

SourceOsaka University·JournalAdvanced Materials Interfaces·TypeExperimental study·DateApr 18, 2023

CityU scientists develop energy-saving, tunable meta-devices for high-precision, secure 6G communications

A research team at City University of Hong Kong invented a tunable terahertz meta-device that can control the radiation direction and coverage area of THz beams. The device allows for signal delivery to specific users or detectors and has flexibility to adjust the propagating direction, as needed.

SourceCity University of Hong Kong·JournalScience Advances·TypeExperimental study·DateMar 16, 2023

Observations open door to improved luminous efficiency of organic LEDs

A research team at Osaka Metropolitan University has developed a technique to directly observe changes in the electronic state of light-emitting electrochemical cells (LECs) during electroluminescence. This breakthrough enables improvements in luminous efficiency, paving the way for more efficient and reliable OLEDs and LECs.

SourceOsaka Metropolitan University·JournalNature Communications·TypeExperimental study·DateMar 14, 2023

Study offers details on using electric fields to tune thermal properties of ferroelectric materials

Scientists from NC State University have discovered a way to manipulate the flow of heat through ferroelectric materials by applying different electric fields. The study, published in Advanced Materials, found that varying electric field strengths, types (AC/DC), time, and frequency can alter the thermal properties of these materials.

SourceNorth Carolina State University·JournalAdvanced Materials·TypeExperimental study·DateFeb 22, 2023

CityU scientists engineer a breath-to-charge electrostatic face mask for prolonged air filtration, reducing the environmental burden

Researchers at City University of Hong Kong develop a self-charging electrostatic face mask that can continuously replenish its electrostatic charge through the user's breathing. The mask provides high-efficiency airborne particle removal with 95.8% effectiveness after 60 hours of testing.

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

What’s your gut telling you?

Researchers have created a tiny pill-like electromagnetic device that can provide medical professionals with diagnostic information about the inner workings of the gastrointestinal tract. The device, when swallowed, delivers data to a smartphone as it passes through the body using electromagnetic technology similar to MRI machines.

SourceNYU Tandon School of Engineering·JournalNature Electronics·DateFeb 13, 2023

Deep learning-assisted visual sensing to detect overcrowding in COVID-19 infected cities

A real-time visual sensing system developed by researchers at Incheon National University can detect overcrowding with an accuracy of 96.55% in real-time. The system uses drones to capture footage, analyze it using a modified ResNet architecture, and feed the data into a social monitoring system.

SourceIncheon National University·JournalIEEE Transactions on Industrial Informatics·TypeComputational simulation/modeling·DateFeb 7, 2023