Stimulated blue emission and second harmonic generation from films of ultrasmall Si nanoparticles

Munir H Nayfeh, Joel Therrien, Gennadiy Belomoin, Osman Akcakir, Nicolas Barry, Enrico Gratton

Research output: Contribution to journalArticlepeer-review

Abstract

A process for converting bulk silicon into ultrasmall nanoparticles was described. Stimulated blue emission and second harmonic generation was exhibited from the films of ultrasmall silicon nanoparticles. A structural prototype for 29 silicon atoms was constructed giving a size, energy gap and an absorption spectrum using density functional and Monte carlo theory. It was found that atoms in these particles get subjected to unbalanced forces strong enough to reshape the molecular structure.

Original languageEnglish (US)
Pages (from-to)F951-F9512
JournalMaterials Research Society Symposium - Proceedings
Volume638
StatePublished - Jan 1 2001

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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