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{%type%} Definitions

WordNet 3.0Copyright Princeton University


Short "hint"

The combination of an electron and a positive hole (an empty electron state in a valence band), which is free to move through a nonmetallic crystal as a unit

Usage examples (27)
  • That was a brilliant report delivered by E.F. Gross about the discovery of the exciton.
  • In the material, the procedure produced quasiparticles called exciton polaritons, which form when photons of light and electrons collide.
  • Says Baldo, "This exciton is the last, great unexplored territory in solar cells."
  • This tunable phonon-exciton system could allow novel applications such as phonon lasers. for more
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