The N-type layer is connected to the negative electrode, also called the cathode, while the P-type layer is linked to the positive electrode, known as the anode. . The first layer, known as the N-type semiconductor, has an excess of free electrons. When the semiconductor is exposed to light, it absorbs. . Solar Cell Definition: A solar cell (also known as a photovoltaic cell) is an electrical device that transforms light energy directly into electrical energy using the photovoltaic effect. An electrical field is created near the top surface of the cell where these two materials are in contact, called. .
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