The secret of the Grätzel Cell | Tomorrow Today
July 9, 2012
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3:27Now PlayingThe secret of the Grätzel Cell | Tomorrow Today
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as posted by the channelMichael Grätzel took a cue from nature and built a solar cell that works according to the principle of photosynthesis. Like chlorophyll in plants, a natural dye helps the Grätzel cell capture the energy in sunlight. That makes the cell cheaper than the silicon variety - and enables it to be thinner and more flexible.
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