Strain and structure in nanocrystals

Youri Bae, Russel E. Caflisch

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Layered nanocrystals consist of a core of one material surrounded by a shell of a second material. We present computation of the atomistic strain energy density in a layered nanocrystal, using an idealized model with a simple cubic lattice and harmonic interatomic potentials. These computations show that there is a critical size r* s for the shell thickness r s at which the energy density has a maximum. This critical size is roughly independent of the geometry and material parameters of the system. Moreover it agrees with the shell thickness at which the quantum yield has a maximum, as observed in several systems.

Original languageEnglish (US)
Title of host publication2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 Technical Proceedings
EditorsM. Laudon, B. Romanowicz
Pages68-70
Number of pages3
StatePublished - 2005
Event2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 - Anaheim, CA, United States
Duration: May 8 2005May 12 2005

Publication series

Name2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 Technical Proceedings

Other

Other2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005
CountryUnited States
CityAnaheim, CA
Period5/8/055/12/05

Keywords

  • Nanocrystals
  • Quantum yield
  • Strain energy

ASJC Scopus subject areas

  • Engineering(all)

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