Multijunction Solar Cells

Multijunction solar cells have long been used in space. Solar cells are well proven in space as a fairly reliable and stable source of energy, capable of running very long time. The primary danger for solar cells in space is cosmic radiation and meteoric dust, causing erosion of the surface of silicon cells and limiting battery life. Multijunction solar cells have multiple layers and have efficiencies higher than single junction cells. They consist of a 3-5 semi conductor for each layer.

Source: http://www.storehomesolar.com/multijunction-solar-cells/

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