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Solar-cell manufacturing techniques could yield LEDs that require 20 percent less energy.
A rolling nanoimprint lithography stamp could be used to print components for displays and solar cells.
The device harnesses both sunlight and mechanical energy.
Silicon sheets self-assemble into spheres to capture more light.
A new polymer simplifies organic circuits.
A new way of printing organic electronics is more reliable and yields higher performance.
Improved dyes and electrolytes could make the Grätzel solar-cell design more practical.