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Federal scientists get more energy out of solar cells
Scientists at the Energy Department's National Renewable Energy Laboratory recently made a solar cell that comes close to the holy grail of 50% efficiency. They're using a technology known as multijunction. For more on the work and why it's important, the Federal Drive with Tom Temin spoke with senior scientist Myles Steiner.\nLearn more about your ad choices. Visit megaphone.fm/adchoices