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Flexible suntraps

Solar cells have been around for a long time. They might be efficient, but they are heavy, expensive and don't look very good on your roof.

So scientists are replacing the costly silicon crystals used in solar cells with light-sensitive nanomaterials. The result is an inexpensive solar cell that can be printed onto a thin, flexible plastic and can cover almost any surface from military tents to mobile phones.

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Today's expensive and ugly solar panels could be replaced by a nano-enhanced, cheap and flexible version.

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