photoelectric
/ˌfoʊtoʊɪˈlɛktrɪk/
adjective
- Relating to or using the electrical effects produced by light, especially the release of electrons from a surface when light shines on it.
- Photoelectric sensors in automatic doors detect when someone approaches.
- Many smoke alarms use a photoelectric system to detect particles in the air.
- The photoelectric effect is the basis for solar panels that convert sunlight into electricity.
Synonyms