Crystalline materials known as topological insulators conduct surface current perfectly, except when they don't. In two new studies published in the journal Science, Princeton researchers and their collaborators explain how these 'fragile' poorly conducting topological states form, and how conductivity can be restored.
Scientists record the formation of foamy laser-induced graphene made with a small laser mounted to a scanning electron microscope. The reduced size of the conductive material may make it more useful for flexible electronics.
Researchers at the National Institute of Standards and Technology (NIST) have found a way to link measurements made by a device integral to microchip fabrication and other industries directly to the recently redefined International System of Units (SI, the modern metric system).
A team of mechanical engineers at Binghamton University, State University of New York investigating a revolutionary kind of micro-switch has found another application for its ongoing research.
3-D printing is often touted as the future of manufacturing. However it has a high degree of error, and manufacturers often need many iterations of a print before they get it right. A team of researchers from USC Viterbi School of Engineering is tackling this problem, with a new set of machine learning algorithms and a software tool called PrintFixer, improving print accuracy by 50 percent or more, making the process more economical and sustainable.
Synthetic chemicals that were released into the environment for the first time 80 years ago have been linked to harmful health effects, and more of them are migrating slowly from the soil, according to University of Arizona research.
Hemp is technically legal in Texas, but proving that hemp is not marijuana can be a hurdle, requiring testing in a licensed laboratory. Now, a team of Texas A&M AgriLife researchers have created a 'hemp scanner' that could easily fit in a police cruiser and distinguish hemp and marijuana instantly, without damaging any of the product.
A new study shows that just having a parent with an alcohol use disorder affects how your brain transitions between active and resting states -- regardless of your own drinking habits.
Kanazawa University researchers used a novel technique to deposit TiO2 layers for efficient perovskite solar cells (PSCs). The inkjet-deposited layers applied at an angle of 45°, without the need for a vacuum, were uniform and their thickness could be controlled by manipulating coating times. The resulting PSCs had an efficiency of 13.19%, making the technique promising as a simple, low-cost method that could be easily scaled-up for commercial production of efficient PSCs.
Scientists at Tokyo Institute of Technology (Tokyo Tech) and Socionext Inc. have designed the world's smallest all-digital phase-locked loop (PLL). PLLs are critical clocking circuits in virtually all digital applications, and reducing their size and improving their performance is a necessary step to enabling the development of next-generation technologies.