Towards more efficient solar cells

A layer of silicon nanocrystals and erbium ions may help solar cells to extract more energy from the ultraviolet (UV, high-energy) part of the solar spectrum. Experimental physicists from the FOM Foundation, ...

Aug 13, 2014 4.7 / 5 (15) 6

How hostile is space?

Space may seem calm, but it is a more hostile environment than that on Earth. Invisible radiation is a big problem for space enthusiasts and scientific instruments. Substituting electronic devices to do human ...

Aug 06, 2014 4.9 / 5 (14) 35