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America invented the LED type of 28.3% efficiency solar cells

Researchers in the University of California at Berkeley  found that, if the design of solar cell  adding a similar light-emitting devices (such as LED) , it could produce the maximum amount of energy. Recently, Yablonovitch and his colleagues are trying to understand why there is such a large gap between the theoretical limit, and what they have developed to reach the limit. According to the research team, the design allows the photon will not be "lost" in the solar cells . LED-type solar cells  jumped prototype efficiency to 28.3% from 26%