Journal of Nanoparticle Research

, Volume 7, Issue 6, pp 669–673

Synthesis of Light-emitting Silicon Nanoparticles by Intense Pulsed ion-beam Esvaporation

  • X. P. Zhu
  • Tomiyuki Yukawa
  • Takehiro Kishi
  • Makoto Hirai
  • Hisayuki Suematsu
  • Weihua Jiang
  • Kiyoshi Yatsui
Article

DOI: 10.1007/s11051-005-5044-x

Cite this article as:
Zhu, X.P., Yukawa, T., Kishi, T. et al. J Nanopart Res (2005) 7: 669. doi:10.1007/s11051-005-5044-x

Abstract

Synthesis of photoluminescent Si nanoparticles has been successfully prepared using an intense pulsed ion-beam evaporation (IBE) technique in vacuum. Si nanoparticles are produced by the IBE method without any post-annealings. Photoluminescence (PL) mainly in blue range with a peak of 455 nm and a shoulder near 510 nm is observed in as-deposited Si nanoparticles at room temperature. The blue light emission is relatively stable with no noticeable change, as the samples have already stored in air more than 4 months. The observed PL does not fit the quantum confinement model, since a majority of particle size is around ~20 nm, estimated by SEM and XRD measurements. Moreover, hydrofluoric acid (HF) corrosion tests on the Si nanoparticles also indicate a correlation between the presence of the surface oxide layers and the PL. Oxide-related luminescence is likely the source of this blue light emission.

Keywords

Si nanoparticlephotoluminescenceintense pulsed ion-beam evaporationablation plasmananoparticle synthesis

Copyright information

© Springer 2005

Authors and Affiliations

  • X. P. Zhu
    • 1
  • Tomiyuki Yukawa
    • 1
  • Takehiro Kishi
    • 1
  • Makoto Hirai
    • 1
  • Hisayuki Suematsu
    • 1
  • Weihua Jiang
    • 1
  • Kiyoshi Yatsui
    • 1
  1. 1.Extreme Energy-Density Research InstituteNagaoka University of TechnologyNagaokaJapan