Time-resolved imaging and photoluminescence of gas-suspended nanoparticles synthesized by laser ablation: Dynamics, transport, collection, and ex situ analysis

D. B. Geohegan, A. A. Puretzky, G. Duscher, S. J. Pennycook

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations

Abstract

The dynamics of gas-phase nanoparticle formation by pulsed laser ablation into background gases were examined by photoluminescence and Rayleigh scattering techniques. The ablation of Si into heavier Ar resulted in a uniform, stationary plume of nanoparticles while Si ablation into lighter He resulted in a turbulent ring of particles which propagated forward at 10 m/s. The effects of gas flow on nanoparticle formation, photoluminescence, and collection were also studied.

Original languageEnglish
Pages (from-to)47-59
Number of pages13
JournalMaterials Research Society Symposium - Proceedings
Volume526
DOIs
StatePublished - 1998
EventProceedings of the 1998 MRS Spring Meeting - San Francisco, CA, USA
Duration: Apr 13 1998Apr 16 1998

Fingerprint

Dive into the research topics of 'Time-resolved imaging and photoluminescence of gas-suspended nanoparticles synthesized by laser ablation: Dynamics, transport, collection, and ex situ analysis'. Together they form a unique fingerprint.

Cite this