A thin sheet of dyed plastic could cut the cost of solar power,
particularly for applications that require solar cells to be highly
efficient and flexible.
Researchers at the University of Illinois
at Urbana-Champaign are using the plastic to gather sunlight and
concentrate it onto a solar cell made of gallium arsenide in an
experimental setup. Doing so doubled the power output of the cells.
far, the researchers have shown that the approach works with a single
solar cell, but they plan to make larger sheets of plastic dotted with
arrays of many tiny solar cells.
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