How perovskites twist

Perovskites are a popular substance in materials science, particularly in solar panel research. They’re flexible, they can be made from a number of elements, such as calcium, lead, titanium, and halogens, and they’re much more efficient at producing electricity than traditional silicon solar panels. But there are still a few problems to solve before they … Continue reading How perovskites twist

A new spin on atoms

US researchers have developed a way to control and measure atoms that are so close together they are impossible to distinguish by optical means. When they get cosy – that is, within a few billionths of a metre of each other – they exhibit interesting quantum mechanical behaviour. At this scale, their spins begin to … Continue reading A new spin on atoms

2D materials with a twist

Welcome to the world of twistronics – electronics with a twist. There is increasing interest in the potential of the ultimate 2D materials (those consisting of just a single layer of atoms) because of their impressive properties such as high conductivity, flexibility and strength. Think applications in lasers, sensors and the like. When a sheet of such … Continue reading 2D materials with a twist

Hans Geiger counts particles

The Geiger counter is fundamental to popular entertainment, especially in sci-fi films in which a scientist carrying a device the size of a shoebox waves a wand over some object and a crackling noise is heard. Everyone looks at one another in an ominous way: it’s (cue the startling music) radiation! The device takes its … Continue reading Hans Geiger counts particles