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Thin-film silicon solar cells are more efficient with tiny holes in the back electrical contact.
Carbon nanotube photovoltaics can wring twice the charge from light.
New manufacturing techniques could cut solar power costs by 20 percent.
A rolling nanoimprint lithography stamp could be used to print components for displays and solar cells.
A new polymer simplifies organic circuits.
A new solar-cell design could cut costs and is suitable for large-scale flexible panels.
A new way of printing organic electronics is more reliable and yields higher performance.
Researchers make cells with near-perfect internal efficiency.
The device harnesses both sunlight and mechanical energy.