In physics, a bound state of an electron and an electron hole in a material, created by light absorption.
Blend word created from 'excitation' + '-on' (particle suffix). Coined in the mid-20th century by physicists studying semiconductors and crystals.
Excitons are quasi-particles—they're not fundamental particles but rather a pair (electron + hole) dancing together in a solid. Understanding excitons is crucial for LEDs, solar cells, and quantum computing!
Complete word intelligence in one call. Free tier — 50 lookups/day.