A self consistent Monte Carlo method for the transient response of laser excited photoconductors

R. P. Joshi, R. O. Grondin

Research output: Contribution to journalArticle

Abstract

We use a bipolar Ensemble Monte Carlo embedded within a circuit solver to include the nonlinear transport of photogenerated electron-hole plasmas. All the usual carrier-carrier and carrier-phonon scattering mechanisms are included within a static screening model to incorporate non-ohmic behaviour. A one dimensional Poisson solver combines nonuniform field effects brought about by charge redistribution. Unlike previous EMC simulations for photoconductive circuits, we allow for transient changes in the net mobile charge within the photoexcitation region, by appropriately modifying the supercharge associated with each particle. Using this time varying supercharge scheme, we test an N+-N-N+ structure under both dc and transient conditions.

Original languageEnglish
Pages (from-to)1813-1817
Number of pages5
JournalSolid State Electronics
Volume32
Issue number12
DOIs
StatePublished - Dec 1989

Keywords

  • Transient transport
  • nonideal contacts
  • photoconductive switching
  • self-consistent Monte Carlo approach
  • time varying supercharge

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