photoreaction
Light causes transformation
A photoreaction is a chemical reaction triggered or driven by light.
The term appears in chemistry and biology to describe processes where light energy initiates molecular changes: Photosynthesis is the most important photoreaction on Earth.
Photoreactions underlie photography, vision, and many industrial processes.
photochemistry
Light-induced chemical breakdown
- chromophoreMolecule's tint-causing portion
- photoinducedCaused by light absorption
- photoreductionElectron gain from light
- singletSleeveless athletic garment
radical · intermediate · mechanism · kinetics · reversible · irreversible
biological
Light-harvesting plant pigment
- retinalOf eye's inner lining
- circadianDaily biological cycle
- photoperiodDuration of daily light
- bioluminescenceOrganism-generated light emission
melanin · photoaging · sunburn
applications
Healing through light exposure
- photolithographyLight-transfers patterns onto silicon
- photovoltaicLight-to-electricity converting
- photodetectorLight-to-electricity conversion device
- photoresistLight-sensitive polymer coating
photodegradation
Light-induced chemical breakdown
- chromophoreMolecule's tint-causing portion
- photoinducedCaused by light absorption
- photoreductionElectron gain from light
singlet · radical · intermediate · mechanism · kinetics · reversible · irreversible
chlorophyll
Light-harvesting plant pigment
- retinalOf eye's inner lining
- circadianDaily biological cycle
- photoperiodDuration of daily light
phototherapy
Healing through light exposure
- photolithographyLight-transfers patterns onto silicon
- photovoltaicLight-to-electricity converting
- photodetectorLight-to-electricity conversion device