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. . In the dark the basic solar cell structure with the donor component, acceptor component, anode and cathode is a diode. It is represented by the darker curve on the graph. The graph shows a “current density vs. Electrons and holes are injected in a certain way based on whether a. . It is a semiconductor diode where the junction is exposed to light (more about this in the next section). If you connect PV modules together, you make a photovoltaic panel (or solar panel).
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