The problem is that a lot of energy gets lost when the electrons hit the connective or "junction cells" that sit between each photovoltaic cell.

The researchers found that by adding a thin film of gallium arsenide to the junction cells, they could practically eliminate voltage loss.

Gallium aresnide is naturally more resistant to heat.

The new design would address one of the biggest problems concentrated photovoltaic [CPV] solar cells face: once solar energy is intensified to the equivalent of 700 "suns," the rate of energy dissipated begins to accelerate.