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cell barrier





Also called a depletion zone, cell junction, or space charge, a very thin region of static electric charge along the interface of the positive and negative layers in a photovoltaic or solar cell. The barrier inhibits the movement of electrons from one layer to the other, so that higher-energy electrons from one side diffuse preferentially through it in one direction, creating a current and thus a voltage across the cell.


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   • SEMICONDUCTOR SCIENCE AND TECHNOLOGY