Harnessing single particle dynamics in silver nanomaterials

Lynn A. Peyser, Tae-hee Lee, Robert M. Dickson

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations

Abstract

The potential of a novel silver-silver oxide system for optical data storage with fluorescent readout has been discovered and developed. These properties arise from photolytic production of highly fluorescent single Agn molecules (n = 2-6 atoms) from silver oxide. Optical experiments with a 514.5 nm Ar+ laser and a 100W Hg lamp allow determination of single Agn nanocluster absorption cross- sections (σ = 8 × 10-15 cm2) and saturation intensities (Isat = 200 W/cm2 at 514.5 nm). Single molecule fluorescence experiments have elucidated the dynamics of AgO photoactivation and subsequent Agn nanocluster emission. Additionally, excitation, wavelength and intensity dependent dynamics are investigated. Results clearly show dependence on wavelength and intensity in Agn nanocluster creation and destruction.

Original languageEnglish (US)
Pages (from-to)81-87
Number of pages7
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4636
DOIs
StatePublished - Jan 1 2002
EventNanoscience Using Laser-Solid Interactions - San Jose, CA, United States
Duration: Jan 24 2002Jan 25 2002

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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