Size-dependent angular distributions of low-energy photoelectrons emitted from NaCI nanoparticles

Kevin R. Wilson, Zou Shengli, Shu Jinian, Eckart Rühl, Stephen R. Leone, George C. Schatz, Musahid Ahmed*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

47 Scopus citations

Abstract

Angle-resolved threshold photoelectron spectra are recorded for size-selected beams of sodium chloride nanoparticles (radius = 25-250 nm). The photoelectron angular distributions exhibit a size-dependent asymmetry that is inversely proportional to particle radius. A model of the internal electric field amplitude and the photoelectron escape probability inside the particles reveals that the asymmetry in photoemission arises because the finite dimensions of the particle are comparable to both the photon penetration depth (14-22 nm) and electron escape length (10 nm).

Original languageEnglish (US)
Pages (from-to)2014-2019
Number of pages6
JournalNano letters
Volume7
Issue number7
DOIs
StatePublished - Jul 1 2007

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Size-dependent angular distributions of low-energy photoelectrons emitted from NaCI nanoparticles'. Together they form a unique fingerprint.

Cite this