What stops flows in glassy materials?

Glasses have a liquid-like disordered structure but solid-like mechanical properties. This leads to one of the central mysteries of glasses: Why don't they flow like liquids? This question is so important that it was selected ...

Driving water splitting to create chemical fuels

The sun is an abundant source of renewable energy, which can be captured and converted into usable electricity. However, because the sun doesn't always shine, the supply of energy is not continuous. We need a way to store ...

Ionic defect landscape in perovskite solar cells revealed

The group of so-called metal halide perovskites as materials has revolutionized the field of photovoltaics in recent years. Generally speaking, metal halide perovskites are crystalline materials that follow the structure ...

Ironing out technetium contamination

Millions of medical imaging procedures each year rely on radioactive technetium. One of its radioisotopes decays quickly and is useful as a tracer material in nuclear medicine. But another, technetium-99, is very long-lived, ...

Metal-organic frameworks become flexible

The application potential of metal-organic frameworks was first discovered around 20 years ago, and almost 100,000 such hybrid porous materials have since been identified. There are great hopes for technical applications, ...

Nylon finally takes its place as a piezoelectric textile

Nylon might seem the obvious go-to material for electronic textiles—not only is there an established textiles industry based on nylon, but it conveniently has a crystalline phase that is piezoelectric—tap it and you get ...

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