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Astrowatt’s wafer-making method could mean cheaper solar power.
A manufacturing method that uses light instead of heat wastes less energy and makes the cells more efficient.
A performance boost for “small-molecule” solar cells could make the materials more practical.
By borrowing a trick from optical-fiber technology, a startup makes cells that trap light to create more electricity.
In acquiring Innovalight, DuPont will expand its solar business and develop new ways to make solar cells.
Metamaterials that convert lower-energy photons to usable wavelengths could offer solar cells an efficiency boost.
Silicon Valley startup gives details about its technology for making highly efficient yet inexpensive solar cells.
N-type and p-type semiconductor nanocrystals could pave the way for new types of solar cells.