Share this entry

Share this page

exciton

Line breaks: ex|citon
Pronunciation: /ˈɛksɪtɒn
 
, ɪkˈsʌɪ-, ɛk-/

Definition of exciton in English:

noun

Physics
A mobile concentration of energy in a crystal formed by an excited electron and an associated hole.
Example sentences
  • As the group intensified optical stimulation during the experiments, though, the number of excitons increased and the electron/electron-hole pairs cancelled each other.
  • The injected electrons and holes combine to form excitons, or electron-hole pairs, bound together by their mutual attraction.
  • Some of these excitons emit light when they decay to the ground state.

Origin

1930s: from excitation + -on.

Definition of exciton in:

Share this entry

Share this page

 

What do you find interesting about this word or phrase?

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day sacerdotal
Pronunciation: ˌsasəˈdəʊt(ə)l
adjective
relating to priests or the priesthood; priestly