An organic solar cell or plastic solar cell is a type of polymer solar cell that uses organic electronics, a branch of electronics that deals with conductive organic polymers or small organic molecules, for light absorption and charge transport to produce electricity from sunlight by the photovoltaic effect.
Evolution Inspires More Efficient Solar Cell Design : Current organic solar cell designs suffer because polymers have less-than-optimal electrical properties. Evolution Inspires More Efficient Solar Cell Design. Researchers at Northwestern University have now developed a new design for organic solar cells - Using a mathematical search algorithm based on natural evolution, the researchers pinpointed a specific geometrical pattern that is optimal for capturing and holding light in thin-cell organic solar cells. The resulting design exhibited a three-fold increase over the Yablonovitch Limit, a thermodynamic limit developed in the 1980s that statistically describes how long a photon can be trapped in a semiconductor.
Article Link: http://goo.gl/0Ks7B6
Published research (linked) : http://goo.gl/f24uIS
Additional source: http://goo.gl/9KFcwY
Explanation of the Yablonovitch Limit (PDF): http://goo.gl/arg39B
Pic courtesy Sciencedaily: The flexible solar module is as small as the page of a book. (Credit: Copyright Fraunhofer ISE)
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