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Recyclable, Wooden Solar Cells for Sustainable Power
Added Apr 26, 2013 | Rate View top rated
Georgia Tech and Purdue University researchers, led by Georgia Tech engineering professor Bernard Kippelen, have developed efficient solar cells using natural substrates derived from plants such as trees. By fabricating them on cellulose nanocrystal (CNC) substrates, the solar cells can be quickly recycled in water at the end of their lifecycle. The CNC substrates are optically transparent, enabling light to pass through them before being absorbed by a very thin layer of an organic semiconductor. The new organic solar cells reach a power conversion efficiency of 2.7 percent - an unprecedented figure for cells on substrates derived from renewable raw materials.
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