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Powering the future: SeoulTech’s breakthrough in vibration energy harvesting

Researchers at SeoulNational University of Science & Technology propose two new designs for energy-efficient vibration energy harvesters that boost power output and efficiency. The designs use a repulsive magnet pair, yoke, and optimized coil placement to maximize magnetic flux change, leading to higher power generation.

SourceSeoul National University of Science & Technology·JournalJournal of Science Advanced Materials and Devices·TypeComputational simulation/modeling·DateJan 13, 2025

A new ultrathin conductor for nanoelectronics

Researchers at Stanford University have discovered a new class of conductors made from niobium phosphide that can conduct electricity better than copper in films as thin as a few atoms. This breakthrough could lead to more powerful and efficient electronics, reducing energy consumption and heat loss.

SourceStanford University·JournalScience·DateJan 8, 2025

“Smarter” semiconductor technology for training “smarter” artificial intelligence

Researchers at Pohang University of Science & Technology have developed a novel analog hardware using ECRAM devices that maximizes AI computational performance. Their technique, which uses a three-terminal structure with separate paths for reading and writing data, demonstrates excellent electrical and switching characteristics.

Scientists solve chemical mystery at the interface of biology and technology

Researchers at the University of Washington have solved a long-standing chemical mystery in organic electrochemical transistors (OECTs), which allow current to flow in devices like implantable biosensors. The study reveals that OECTs turn on via a two-step process, causing a lag, and off through a simpler one-step process.

SourceUniversity of Washington·JournalNature Materials·TypeExperimental study·DateApr 30, 2024

Toward sustainable energy applications with breakthrough in proton conductors

Researchers at Tokyo Institute of Technology have discovered a new strategy to enhance the conductivity and stability of perovskite-type proton conductors, overcoming the 'Norby gap' issue. Donor doping into materials with disordered intrinsic oxygen vacancies enables high proton conduction at intermediate and low temperatures.

SourceTokyo Institute of Technology·JournalNature Communications·TypeExperimental study·DateNov 21, 2023

Shedding light on unique conduction mechanisms in a new type of perovskite oxide

Researchers at Tokyo Institute of Technology have discovered a new type of perovskite oxide with remarkable dual-ion conductivity, promising to revolutionize the development of solid-oxide fuel cells and proton ceramic fuel cells. The material's unique ion migration mechanisms, involving the formation of dimers and efficient proton mig...

SourceTokyo Institute of Technology·JournalChemistry of Materials·TypeExperimental study·DateNov 17, 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

High-temperature superconducting large-current conductor with simple stacking

Scientists at NIFS have created a stable and strong High-Temperature Superconducting (HTS) large-current conductor, named STARS, that can be applied to fusion reactors. The new conductor overcomes challenges in twisting and transposing thin wires, achieving higher current densities than Low-Temperature Superconductors.

SourceNational Institutes of Natural Sciences·JournalJournal of Physics Conference Series·TypeExperimental study·DateAug 9, 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.

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

Novel oxychloride shows high stability and oxide-ion conduction through interstitial oxygen site

A new Bi-containing compound, LaBi1.9Te0.1O4.05Cl, exhibits high chemical and electrical stability and a high oxide-ion conductivity superior to other materials at low temperatures. The unique mechanism underlying the high conductivity is explained by an interstitialcy migration of oxide ions through the lattice and interstitial sites.

SourceTokyo Institute of Technology·JournalAdvanced Functional Materials·TypeExperimental study·DateApr 19, 2023

Highly charged ions melt nano gold nuggets

Scientists at TU Wien have developed a technique to control the shape and size of nano gold structures using highly charged ions. The experiment shows that the impact force is not the decisive factor, but rather the electrical charge of the ions, which deposits energy at the point of impact and disrupts the crystal structure of the gold.

SourceVienna University of Technology·JournalSmall·TypeExperimental study·DateMar 28, 2023

CityU scientists discover a novel photophysical mechanism that has achieved record-breaking efficiency for organic photovoltaics

Researchers from City University of Hong Kong developed a novel device-engineering strategy to suppress energy conversion loss in organic photovoltaics, achieving PCE over 19%. The discovery enables OPVs to maximize photocurrent and overcome the limit of maximum achievable efficiency.

SourceCity University of Hong Kong·JournalNature Energy·TypeExperimental study·DateDec 21, 2022

Unveiling the mechanism of the metal-to-insulator transition in ruthenium phosphide suggests a new way of looking at solids

Researchers at Nagoya University have uncovered the mechanism behind ruthenium phosphide's transition from metal to insulator, revealing a unique crystal structure and molecular bonding. This discovery could lead to the development of faster responding sensors and smart windows that change light transmittance depending on temperature.

SourceNagoya University·JournalJournal of the American Chemical Society·DateNov 29, 2022

New era of two-dimensional ferroelectrics

Researchers review emerging field of 2D ferroelectric materials with layered van-der-Waals crystal structures, offering new properties and functionalities not found in conventional materials. These materials show easily stackable nature, making them attractive as building blocks for post-Moore's law electronics.

SourceARC Centre of Excellence in Future Low-Energy Electronics Technologies·JournalNature Reviews Materials·TypeLiterature review·DateOct 27, 2022

Electronic laboratory notebook for materials science: A lossless data management platform for machine learning and sharing of experimental information

Researchers developed an electronic laboratory notebook that uses knowledge graphs to describe material properties and experimental processes. The platform enables automated analysis, lossless sharing, and discovery of new materials with potential applications in energy-related devices.

SourceWaseda University·Journalnpj Computational Materials·TypeData/statistical analysis·DateSep 21, 2022