CdSe nanoparticle elasticity and surface energy

Vanessa M. Huxter, Anna Lee, Shun S. Lo, Gregory D. Scholes

Research output: Contribution to journalArticle

65 Scopus citations

Abstract

The acoustic phonon modes of colloidal CdSe nanoparticles in solution (293 K) are passively measured by a third order ultrafast heterodyne cross-polarized transient grating measurement. Using the observed size-dependence of the acoustic phonon frequency, the elastic properties of the nanoparticles are determined. The size-dependence of the elastic modulus is then used to ascertain ίnformation about the relative surface energies of the nanocrystals and suggests the extent and depth of surface reconstruction.

Original languageEnglish (US)
Pages (from-to)405-409
Number of pages5
JournalNano Letters
Volume9
Issue number1
DOIs
StatePublished - Jan 2009

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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