But a team of MIT scientists has built a different sort
of solar energy
device that uses inventive engineering and advances in materials science
to capture far more of the sun’s energy. The trick is to first turn
sunlight into heat and then convert it back into light, but now focused
within the spectrum that solar cells can use. While various researchers
have been working for years on so-called solar thermophotovoltaics, the
MIT device is the first one to absorb more energy than its photovoltaic
cell alone, demonstrating that the approach could dramatically increase
efficiency.
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