Synthesis by pulsed laser deposition of metallic nanoclusters embedded in an amorphous host

C. N. Afonso*, R. Serna, J. M. Ballesteros, A. K. Petford-Long, R. C. Doole

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

Abstract

Alternate ablation of metallic (Bi, Cu, Fe) and insulator (Al 2 O 3 ) targets in vacuum have been used to produced nanocomposite films by pulsed laser deposition. The optical properties of the films are studied during growth by in situ reflectivity measurements, which are also used to control the process. The structure of the films is characterised by high resolution transmission electron microscopy. The results show that films with metallic nanocrystals 1.5-5.0 nm in diameter and high refractive index can be easily produced, the size and in-depth distribution being easily controlled through the number of pulses in the metallic and host targets, respectively. The growth mechanism, the role of an argon environment during growth, and the stability of the clusters upon annealing, are discussed.

Original languageEnglish (US)
Pages (from-to)339-343
Number of pages5
JournalApplied Surface Science
Volume127-129
DOIs
StatePublished - May 1998

Keywords

  • Alternate ablation
  • Amorphous host
  • Growth mechanism
  • High refractive index
  • Nanoclusters
  • Optical properties

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

Fingerprint Dive into the research topics of 'Synthesis by pulsed laser deposition of metallic nanoclusters embedded in an amorphous host'. Together they form a unique fingerprint.

Cite this