Solar Photovoltaic Cell

A solar cell or photovoltaic cell (PV cell) is an optoelectronic device that converts the energy of light directly into electricity by means of the photovoltaic effect, which is generally done by a p-n junction. Although solar cell without p-n junction is available. This process requires firstly, a material in which light absorption raises an electron to a higher energy state, and secondly, the movement of this higher energy electron from the solar cell into an external circuit. The electron dissipates energy in the external circuit and returns to the solar cell. Various materials and processes can potentially satisfy the requirements for photovoltaic energy conversion. Still, in practice, nearly all photovoltaic energy conversion uses semiconductor materials in the form of a p-n junction. The common single-junction silicon solar cell can produce a maximum open-circuit voltage of approximately 0.5 to 0.6 volts.

A photoelectric cell is a device whose electrical characteristics (such as current, voltage, or resistance) vary when exposed to light.

Reference
[1] https://en.wikipedia.org/wiki/Solar_cell
[2] https://www.pveducation.org/pvcdrom/solar-cell-operation/solar-cell-structure