photocarrier

https://doi.org/10.1351/goldbook.14040
Nonequilibrium free electron or free hole generated in a solid by ultraviolet, visible, or infrared absorption and occupying energy levels in the conduction band or the valence band, respectively.
Note: Electrons occupying energy levels near the bottom of the conduction band and holes occupying energy levels near the top of the valence band (thermalised carriers) are considered as quasi-chemical intermediates. Nonthermalised (hot) carriers can also be involved in photocatalysed reactions.
Source:
PAC, 2011, 83, 931. (Glossary of terms used in photocatalysis and radiation catalysis (IUPAC Recommendations 2011)) on page 966 [Terms] [Paper]