A currentSee electric current. carrier, either an electronAn elementary particle of an atom with a negative electrical... or a holeThe vacancy where an electron would normally exist in a..., that is in the minority in a specific layer of a semiconductor material; the diffusion of minority carriers under the action of the cell junctionThe area of immediate contact between two layers (positive and... voltageThe amount of electromotive force, measured in volts, that exists... is the currentSee electric current. in a photovoltaic device.