Photovoltaics, the conversion of light to electricity, is a key technology for sustainable energy. Since the days of Max Planck and Albert Einstein, we know that light as well as electricity are ...

Researchers have successfully created electron-photon pairs in a controlled way in an electron microscope. Researchers from Göttingen (Germany) and Lausanne (Switzerland) have successfully created ...

Over the past decades, engineers have introduced numerous technologies that rely on light and its underlying characteristics.

A better understanding of how electrons convert energy into photons could lead to designing more efficient solar cells or better phototherapies for cancer. Researchers looking into the process have ...

Within our comfortable world of causality we expect that reactions always follow an action and not vice versa. This why the recent chatter in the media about researchers having discovered ‘negative ...

Quantum materials contain relativistic particles called Dirac electrons governing unique physical properties. They are sometimes massless and move with the light velocity, being rather like photons ...

Researchers from Göttingen (Germany) and Lausanne (Switzerland) have successfully created electron-photon pairs in a controlled way in an electron microscope for the first time. Using a new method, ...