Scientists from Russia, Germany, and Venezuela investigated the evolution of the 2-D semiconductor GaSe exposed to air. They revealed that GaSe properties could be exploited in nanoelectronics when manufactured in a vacuum or inert atmosphere. This research opens up new prospects for the technological application of this promising 2-D material.
A group of Drexel University researchers have created a fabric-like material electrode that could help make energy storage devices -- batteries and supercapacitors -- faster and less susceptible to leaks or disastrous meltdowns. Their design for a new supercapacitor, which looks something like a furry sponge infused with gelatin, offers a unique alternative to the flammable electrolyte solution that is a common component in these devices.
A study led by UChicago researchers, published Sept. 20 in Nature, describes an innovative method to make stacks of semiconductors just a few atoms thick. The technique offers scientists and engineers a simple, cost-effective method to make thin, uniform layers of these materials, which could expand capabilities for devices from solar cells to cell phones.
Scarce metals are found in a wide range of everyday objects around us. They are complicated to extract, difficult to recycle and so rare that several of them have become "conflict minerals" which can promote conflicts and oppression. A survey at Chalmers University of Technology now shows that there are potential technology-based solutions that can replace many of the metals with carbon nanomaterials, such as graphene.
A group of researchers from the Hong Kong University of Science and Technology and University of California, Santa Barbara, successfully demonstrated record-small electrically pumped micro-lasers epitaxially grown on industry standard (001) silicon substrates in a recent study. A submilliamp threshold of 0.6 mA, emitting at the near-infrared (1.3?m) was achieved for a micro-laser with a radius of 5 μm. The thresholds and footprints are orders of magnitude smaller than those previously reported lasers epitaxially grown on Si.
IBS researchers produced the first 2-D field-effect transistor (FET) made of a single material.
PNNL researchers have measured the forces that cause certain crystals to assemble, revealing competing factors that researchers might be able to control. The work has a variety of implications in both discovery and applied science. In addition to providing insights into the formation of minerals and semiconductor nanomaterials, it might also help scientists understand soil as it expands and contracts through wetting and drying cycles.
Researchers are rolling out a new manufacturing process and chip design for silicon carbide (SiC) power devices, which can be used to more efficiently regulate power in technologies that use electronics. The process -- called PRESiCE -- was developed to make it easier for companies to enter the SiC marketplace and develop new products.
Major leap for practical building blocks of a quantum internet: Published in Nature Physics, new research from an Australian team demonstrates how to dramatically improve the storage time of a telecom-compatible quantum memory, a vital component of a global quantum network. The technology operates in the same 1550 nanometre band as today's telecommunications infrastructure. It can also be operated as a quantum light source or used as an optical link for solid-state quantum computing devices such as superconducting qubits and silicon qubits.
Researchers from the National University of Singapore have established new findings on the properties of two-dimensional molybdenum disulfide, a widely studied semiconductor of the future.