11 Jun '12, 7pm

Solar Cells Use Underwater Sunlight for Electricity

Solar Cells Use Underwater Sunlight for Electricity

Underwater sensors and systems are a huge help to scientists who are trying to monitor data from the ocean. Sticking an autonomous sensor in the water and leaving it to collect information -- from pollution levels to temperature and salinity -- is a lot easier than having to repeatedly go out on a boat and monitor it by hand. However, it is tough work to try and keep a full battery charged and running systems and sensors used underwater. Typically, these devices and systems rely on power created on dry land, or at least solar cells located up at the surface. However, the U.S. Naval Research Laboratory has made some interesting strides in being able to produce electricity using solar cells placed underwater. Gizmag writes , "Water absorbs much of the spectrum of sunlight – blue-green light is the last portion of the spectrum to be absorbed, and thus penetrates the farthest ...

Full article: http://www.treehugger.com/solar-technology/solar-cells-us...

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