Breakthrough for carbon nanotube solar cells: Twice as efficient as current models

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Lighter, more flexible, and cheaper than conventional solar-cell materials, carbon nanotubes (CNTs) have long shown promise for photovoltaics. But research stalled when CNTs proved to be inefficient, converting far less sunlight into power than other methods. Scientists have now developed a carbon nanotube solar cell that is twice as efficient as its predecessors.

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