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On the way to multiband solar cells

When visiting California's central valley in the summertime, it's hard to imagine that solar energy isn't single-handedly meeting the west coast's energy needs. But one problem with modern solar cells is that while the solar ...

dateNov 12, 2015 in Energy & Green Tech
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How to make a "perfect" solar absorber

The key to creating a material that would be ideal for converting solar energy to heat is tuning the material's spectrum of absorption just right: It should absorb virtually all wavelengths of light that reach Earth's surface ...

dateSep 29, 2014 in Nanomaterials
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Why NASA studies the ultraviolet sun

( —You cannot look at the sun without special filters, and the naked eye cannot perceive certain wavelengths of sunlight. Solar physicists must consequently rely on spacecraft that can observe this invisible light ...

dateAug 21, 2014 in Space Exploration
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