The term “photovoltaic” comes from the Greek phos meaning “light”, and the name of the Italian physicist Volta, after whom the volt (and consequently voltage) are named. It means literally of light and electricity.
Photovoltaics describes both the technology of solar cells, and also the field, discipline, and approach of creating electricity that is made possible by solar cells.
The “photovoltaic effect” is the basic physical process through which a solar cell converts sunlight into electricity.
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