Exciton
Revision as of 08:21, 28 May 2009 by Cmditradmin (talk | contribs)
An exciton is an excited electron bound to an imaginary particle the "hole". The bound electron and hole pairs (excitons) provide a means to transport energy without transporting net charge. Later the exciton may break into a free electron and hole that go their separate ways. (charge separation)