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A photovoltaic (PV) solar cell is a semiconductor device that converts sunlight directly into electrical energy through the photovoltaic effect. The most commonly used material for PV cells is silicon, which has properties suitable for absorbing sunlight and generating electron-hole pairs. The basic structure of a solar cell consists of a thin layer of p-type silicon and a layer of n-type silicon, forming a p-n junction. ______ _______ ______ ___ ___.
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