30 Apr '12, 4pm

Leaf-mimicking design boosts output of solar panels by 47 percent, @Princeton researchers say #solar

30 Apr 2012: Leaf-Mimicking Design Boosts Output of Solar Panels By adding microscopic folds onto the surface of photovoltaic materials, a design variation borrowed from a Frank Wojciechowski Folded solar cell natural leaf, researchers say they have been able to boost the solar output of flexible plastic solar cells by 47 percent . According to the scientists, who published their findings in the journal Nature Photonics , the folds acted as a sort of “wave guide,” channeling light waves and increasing the material’s exposure to light. “I expected that it would increase the photocurrent because the folded surface is quite similar to the morphology of leaves, a natural system with high light harvesting efficiency,” said Jong Bok Kim, a researcher from Princeton University and lead author of the study. “However, when I actually constructed solar cells on top of the folded sur...

Full article: http://e360.yale.edu/digest/leaf-mimicking_design_boosts_...

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