Making Solar Cells with Pure Pyrite
Cyrus Wadia is using abundant materials to grow nanocrystals for cheaper photovoltaics.
Inside the solar simulator, the chip is illuminated with light in a mixture of wavelengths simulating the distribution found in sunlight. Electrical connections to the manifold read the current and voltage across each cell, helping Wadia to calculate its efficiency.
Credit: Jen Siska
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