A Clemson University physicist and collaborators from China and Denmark have created a new and potentially paradigm-shifting high-performance thermoelectric compound.
Florida State University researchers have discovered a novel way to improve the performance of electrical wires used as high-temperature superconductors (HTS), findings that have the potential to power a new generation of particle accelerators.
University of California Berkeley researchers initiated a collaboration that gathered engineers from different universities worldwide to create a photonic MEMS switch using a commercially available complementary metal-oxide-semiconductor (CMOS) fabrication process without modification. The use of this well-known microfabrication platform represents a huge step toward industrialization because it is compatible with most current technologies, cost-effective, and suited for high-volume production.
Wearable electronic devices and biosensors are great tools for health monitoring, but it has been difficult to find convenient power sources for them. Now, a group of scientists from Japan has successfully developed and tested a wearable biofuel cell array that generates electric power from the lactate in the wearer's sweat, opening doors to electronic health monitoring powered by nothing but bodily fluids.
Gallium nitride (GaN) semiconductors are considered to be a future alternative to silicon, not least due to their superior performance in fast switching applications. However, unwanted impurities in GaN crystals can degrade their switching performance. In a new study, scientists from Nagoya Institute of Technology, Japan explore the mechanism behind the impact of carbon impurities on the charge carriers of GaN, paving the way for impurity control strategies in GaN crystal growth.
Largest range of resins developed by SUTD are tougher and will allow for more robust integration of mechatronic components in 3D printed multi-material structures.
The emergence of 2D puddles of superconductivity within a 3D superconductor may be an example of how 3D superconductors reorganize themselves just before undergoing an abrupt shift into an insulating state. It also suggests a novel and potentially easier way to make 2D materials.
Researchers from Singapore-MIT Alliance for Research and Technology (SMART) and National University of Singapore (NUS) have developed a new multifaceted method that can directly observe compositional fluctuations in indium gallium nitride, a semiconductor material used in LEDs. The method can be adapted and applied in other materials science studies to investigate compositional fluctuations.
Researchers from Tokyo Metropolitan University have shown that a quantity known as "thermoelectric conductivity" is an effective measure for the dimensionality of newly developed thermoelectric nanomaterials. Studying films of semiconducting single-walled carbon nanotubes and atomically thin sheets of molybdenum sulfide and graphene, they found clear distinctions in how this number varies with conductivity, in agreement with theoretical predictions in 1D and 2D materials. Such a metric promises better design strategies for thermoelectric materials.
An international team working at Berkeley Lab used a unique X-ray instrument to learn new things about lithium-rich battery materials that have been the subject of much study for their potential to extend the range of electric vehicles and the operation of electronic devices.