Any technology that transforms light energy directly into electrical energy via the photovoltaic effect, is called solar cells.
Properties of solar cells:
The solar cells are P-N junction diodes with reverse bias connections.
Whenever light becomes focused on the junction of the diode, the current is generated.
This is a reverse current.
Voltage is independent of light intensity through an ideal solar cell. Furthermore, when the current, I, is zero, the highest voltage is created across the endpoints of the solar cell.
The presence of this reverse current would be determined by the frequency of the illumination.
This same intensity of the light concentrated on it determines the magnitude of such reverse current.