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→Generating current with Photons
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If we then connect the n-type side to the p-type side of the cell by means of an external electric circuit, current flows through the circuit (which responds just as if powered by a battery} because this reduces the light induced charge imbalance in the cell.
If we then connect the n-type side to the p-type side of the cell by means of an external electric circuit, current flows through the circuit (which responds just as if powered by a battery} because this reduces the light induced charge imbalance in the cell.
[[File:PV cell in circuit 3.png|thumb|350x350px|alt=]][[File:PV cell in circuit 2.png|thumb|351x351px|alt=|center]]
[[File:PV cell in circuit 3.png|thumb|350x350px|alt=]][[File:PV cell in circuit 2.png|thumb|351x351px|alt=|center]]
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The light energy originally absorbed by the electrons is used up while the electrons power the external circuit. Thus, an equilibrium is maintained.
The light energy originally absorbed by the electrons is used up while the electrons power the external circuit. Thus, an equilibrium is maintained.