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Posted: Tue 21:56, 08 Oct 2013
Post subject: abercrombie pas cher How do Photovoltaic Work
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Photovoltaic power cells are made from the same kinds of semiconductor materials,eg silicon, used in the microelectronics industry. For photovoltaic power cells, a thin semiconductor wafer is specially treated to form an electric field, positive on one side and negative on the other. When light energy strikes the solar cell, [url=http://www.mnfruit.com/abercrombie.php]abercrombie[/url] electrons are knocked [url=http://www.mxitcms.com/tiffany/]tiffany[/url] loose from the atoms in the semiconductor material. If electric conductors are attached to the negative and positive sides, forming an electrical circuit, the electrons can be caught in the form of an electrical current — that is, electricity. This electricity can then be used to power a load,eg a light or a tool.
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