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Metamaterials that convert lower-energy photons to usable wavelengths could offer solar cells an efficiency boost.
China’s solar giant shifts its strategy.
A new material could cheaply convert sunlight into hydrogen.
Rocket scientist Franklin Chang Diaz talks about finding the power and propulsion required to colonize space.
An inexpensive, polymer-based device breaks a record, reaching 10.6 percent efficiency.
Carbon nanotube photovoltaics can wring twice the charge from light.
Combining synthetic biology and solar technology could provide a way to trap carbon dioxide and produce fuel.
Tiny boats made of nanomaterials are powered directly by sunlight.