Solar Panels become effective
The current solar cells that convert the energy of the photons into electricity, typically have efficiencies up to 30%. The fact that every semiconductor material capable of absorbing a photon energy only at a specific range.
Theorists estimate that solar cell composed of two semiconductor materials, can have efficiencies of up to 50%, but in reality this has never been able to achieve.
Now, in the Lawrence Berkeley Laboratory created a material that was likely to achieve a 50 percent efficiency - indium gallium nitride (indium gallium nitride - InGaN).
By varying the ratio of indium and gallium in the different layers of Berkeley Lab employees could tune the photocell so that it transformed into electricity 50% of the solar radiation.
The main problem now - is the high cost and complexity of the method of crystal growth InGaN. Employees of Berkeley Lab#39;s hope with the Colorado National Renewable Energy Laboratory, to find a cheaper way to create a material and solar panels from it.
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