Energy Conservation


Direct conversion of light into electricity. Materials absorbing photons and being ionized such that electrons are released are known to have a photoelectric effect, often called solar cells. When the free electrons released are captured, electric current is the result. Solar cells are made of semiconductor materials such as silicon (wafers) or non-silicon materials such as cadmium telluride, treated to form an electric field, positive on one side and negative on the other. Due to the semiconductor structure the electrons are forced in one direction creating the current. The current produced is directly dependent on how much light that strikes the module.

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