A new design converts direct sunlight to electricity with
. . . 44.5% efficiency, giving it the potential to become,
. . . the most efficient solar cell in the world.
The new device uses concentrator photovoltaic (CPV) panels,
. . . that employ lenses to concentrate sunlight onto tiny, micro-scale solar cells.
Because of their small size, less than one millimeter square,
. . . solar cells utilizing more sophisticated materials can be developed cost effectively.
The stacked cell acts almost like a sieve for sunlight,
. . . with the specialized materials in each layer,
. . . absorbing the energy of a specific set of wavelengths.
By the time the light is funneled through the stack,
. . . just under half of the available energy has been converted into electricity.
By comparison, the most common solar cell today,
. . . converts only a quarter of the available energy into electricity.
9-8-2017 Source: #solar cell: Worlds most efficient
#solar cell: Worlds most efficient
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