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Trapping sunlight with microbeads for thinner and cheaper solar cells
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Nanoscientists are currently developing the next generation of solar cells, which will be twenty times thinner than current solar cells.
Over 90 per cent of the current electricity generated by solar panels is made by silicon plates that are 200 micrometres thick. Several billion of these are produced every year. The problem is the large consumption of silicon: five grams per watt.
Light trapping for solar electricity can be dramatically enhanced in ultrathin crystalline silicon wafers by incorporating periodic nanostructures on a solar cell rear side covered with a surface-passivating dielectric material and a metal mirror.
See more and subscribe to NextBigFuture at 2013-01-30 15:31:26 Source: http://nextbigfuture.com/2013/01/trapping-sunlight-with-microbeads-for.html
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