Solar Panel (Circuits Lab)

The solar panel is not unlike the lemon battery. Instead of an electrochemical reaction involving acidity and conductivity, in the case of a solar panel, we have a photovoltaic reaction (light converted into energy). Everyday solar cells are also known as photovoltaic cells. When light in the form of photos hits an electrically neutral NPN photovoltaic cell, its energy disrupts the "holes" of a P section of the semiconductor enough to cause a flow of electricity.