Actual size of a 2kw gallium arsenide super cell is approx.
Gallium arsenide solar cells efficiency.
Gallium arsenide phosphide tandem solar cell with 25 0 efficiency the demonstrated device according to the academics is built with interfaces between the active cell layers that improve the top.
They were originally developed for special applications such as satellites and space investigation.
Their high efficiency comes from the possibility to grow three or more junctions for the same cell.
Gallium arsenide solar cells can have roughly 25 efficiency rating with only one junction.
Gallium arsenide based multijunction solar cells are the most efficient solar cells to date reaching the record efficiency of 42 3 with a triple junction metamorphic cell 48.
Cost can be a bit of a detriment.
This is in the zone that is needed for practical use.
However even in spite of this gallium arsenide solar cells can produce efficiency levels in the range on 25 30.
Gallium arsenide solar cells are up to 45 efficient at harvesting energy from the sun where quality solar cells are currently around 17 20 efficient.