How Electron And Holes Work In Solar Panel

The electrons freed by the interaction of the sunlight with the semiconductor material creates an electron flow as the free electrons move together around an external circuit.

How electron and holes work in solar panel.

This missing electron. Solar panels work by letting photons released by the sun knock electrons free from atoms and thus generate a flow of electricity. All solar panels have positive and negative electric terminals so after the electrons carry the electric current out of the solar panel and into a battery or an inverter a fresh supply of electrons re enter the p type side of the solar panel and the process is allowed to happen again with the help of more sunlight. The solar panel is made up of a collection of solar cells.

How solar panels work. In n type silicon layer electrons are the majority carriers and holes are the minority carriers. If this happens close enough to the electric field or if free electron and free hole happen to wander into its range of influence the field will send the electron to the n side and the hole to the p side. When light in proton form hits the solar cell the energy results in dividing the hole electron couples.

When photons hit the solar cell free electrons attempt to unite with holes in the p type layer. An n type silicon layer and a p type silicon layer. When sunlight strikes a solar cell electrons in the silicon are ejected which results in the formation of holes the vacancies left behind by the escaping electrons. Simply put a solar panel works by allowing photons or particles of light to knock electrons free from atoms generating a flow of electricity.

If this happens in the electric field the field will move electrons to the n type layer and holes to the p type layer. Each photon with enough energy will normally free exactly one electron resulting in a free hole as well. Each solar cell is made up of two different layers of silicon that are stuck together. Solar panels are composed of many smaller photovoltaic cells linked together.