Solar cells
A community portal about Solar cells with blogs, videos, and photos. According to Wikipedia.org: A solar cell is a device that converts photons from the sun into electricity. In general, a solar cell that includes both solar and nonsolar... [more]
A community portal about Solar cells with blogs, videos, and photos. According to Wikipedia.org: A solar cell is a device that converts photons from the sun into electricity. In general, a solar cell that includes both solar and nonsolar sources of light is termed a photovoltaic cell. Fundamentally, the device needs to fulfill only two functions: photogeneration of charge carriers in a light-absorbing material, and separation of the charge carriers to a conductive contact that will transmit the electricity. This conversion is called the photovoltaic effect, and the field of research related to solar cells is known as photovoltaics.
"ENERGY: Living organisms triple solar cell efficiency"
By harnessing the shells of living organisms in the sea–microscopic algae called diatoms–engineers have tripled the efficiency of experimental dye-sensitized solar cells. The diatoms were fed a diet of titanium dioxide–the main ingredient for thin film solar cells–instead of their usual meal which is silica (silicon dioxide). As a result, their shells became photovoltaic when coated with dyes. The resulting dye sensitize solar cells were three times more efficient than those without the diatoms.
Text: http://www.eetimes.com/showArticle.jhtml?articleID=216500176
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