Graphene helps protect photocathodes for physics experiments

Transforming light into electricity is no mean feat. Some devices, like solar cells, use a closed circuit to generate an electric current from incoming light. But another class of materials, called photocathodes, generate ...

Solar power advances possible with new 'double-glazing' device

A new 'double-glazing' solar power device – which is unlike any existing solar panel and opens up fresh opportunities to develop more advanced photovoltaics – has been invented by University of Warwick researchers.

One step closer to artificial photosynthesis and 'solar fuels'

Caltech scientists, inspired by a chemical process found in leaves, have developed an electrically conductive film that could help pave the way for devices capable of harnessing sunlight to split water into hydrogen fuel.

New test bed probes the origin of pulses at LCLS

It all comes down to one tiny spot on a diamond-cut, highly pure copper plate. That's where every X-ray laser pulse at SLAC's Linac Coherent Light Source gets its start. That tiny spot must be close to perfect or it can impair ...

Black gold: Enabling bright, high rep-rate electron beams

Free electron lasers (FELs) have proven their worth, but next-generation light sources will have to do better than produce ultrabright x-ray pulses 100 or so times a second. What's needed is megahertz rep rate, a million ...