Luminescent silicon nanocrystals produced by near-infrared nanosecond pulsed laser ablation in water

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

Abstract

We report the investigation of luminescent nanoparticles produced by ns pulsed Nd:YAG laser ablation of silicon in water. Combined characterization by AFM and IR techniques proves that these nanoparticles have a mean size of ∼3 nm and a core–shell structure consisting of a Si-nanocrystal surrounded by an oxide layer. Time resolved luminescence spectra evidence visible and UV emissions; a band around 1.9 eV originates from Si-nanocrystals, while two bands centered at 2.7 eV and 4.4 eV are associated with oxygen deficient centers in the SiO2 shell.
Original languageEnglish
Pages (from-to)62-65
Number of pages4
JournalApplied Surface Science
Volume302
Publication statusPublished - 2014

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • Condensed Matter Physics
  • General Physics and Astronomy
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

Fingerprint Dive into the research topics of 'Luminescent silicon nanocrystals produced by near-infrared nanosecond pulsed laser ablation in water'. Together they form a unique fingerprint.

Cite this