Tiny nanoclusters of metal atoms -- such as gold and silver -- have properties which mean they can be used as semiconductors, a joint Swansea-Hamburg research team has discovered. The finding opens the door to a wide range of potential new applications, from phone displays and flatter screens to wearable technology.
In response to serious new security flaws found in almost every computer chip on the market today, researchers at Technische Universität Kaiserslautern, Germany, in collaboration with scientists at Stanford, have developed a mathematical algorithm to automate and expedite the process of finding flaws in future designs prior to production.
In mobiles, fridges, planes - transistors are everywhere. But they often operate only within a restricted current range. Ludwig-Maximilians-Universitaet (LMU) in Munich physicists have now developed an organic transistor that functions perfectly under both low and high currents.
Physicists at EPFL propose a new 'quantum simulator': a laser-based device that can be used to study a wide range of quantum systems. Studying it, the researchers have found that photons can behave like magnetic dipoles at temperatures close to absolute zero, following the laws of quantum mechanics. The simple simulator can be used to better understand the properties of complex materials under such extreme conditions.
Nanowire gurus at the National Institute of Standards and Technology have made ultraviolet light-emitting diodes (LEDs) that, thanks to a special type of shell, produce five times higher light intensity than do comparable LEDs based on a simpler shell design.
A team of researchers working at Berkeley Lab has discovered the strongest topological conductor yet, in the form of thin crystal samples that have a spiral-staircase structure. The team's result is reported in the March 20 edition of the journal Nature.
A detailed examination of the challenges and tradeoffs in the development of a compact fusion facility with high-temperature superconducting magnets.
A study into the effects of high mechanical pressure on the polyiodide TEAI showed that it brings unusually high electrical conductivity starting from insulating state, suggesting that the material may be useful as a switchable semiconductor. This system could represent an alternative to gel electrolytes and ionic liquids in dye-synthesized solar cells. The paper, 'Pressure-induced Polymerization and Electrical Conductivity of a Polyiodide,' has been published as a Very Important Paper in Angewandte Chemie.
A research team at The Ohio State University has discovered a way to simplify how electronic devices use those electrons -- using a material that can serve dual roles in electronics, where historically multiple materials have been necessary. The team published its findings March 18, 2019 in the journal Nature Materials.
Researchers in China and at UC Davis have measured high conductivity in very thin layers of niobium arsenide, a type of material called a Weyl semimetal. The material has about three times the conductivity of copper at room temperature.