A solid state device, usually a semiconductor such as silicon, which absorbs photons with energies higher than or equal to the bandgap energy and simultaneously produces electric power.
See also: photogalvanic cell
PAC, 1991, 63, 569. 'Terminology in semiconductor electrochemistry and photoelectrochemical energy conversion (Recommendations 1991)' on page 593 (https://doi.org/10.1351/pac199163040569)
PAC, 1996, 68, 2223. 'Glossary of terms used in photochemistry (IUPAC Recommendations 1996)' on page 2265 (https://doi.org/10.1351/pac199668122223)