Ultrafast emission spectroscopy of exploding nanoaluminum in Teflon: Observations of aluminum fluoride

Rusty W. Conner, Dana D. Dlott

Research output: Contribution to journalArticlepeer-review

Abstract

A multifunctional reactive material with Al nanoparticles and Teflon AF oxidizer is studied after laser flash-heating by time-resolved emission spectroscopy. At shorter times the emission is dominated by a broadband continuum peaked at 250 nm, originating from the Al core. At longer times, during an ablation process confined by thick optical windows, in addition to a broadband component, atomic Al emission bands and Al and AlF absorptions are observed. The AlF time dependence suggests that part of the AlF is created in the condensed-phase core and part in the dense plasma associated with confined ablation.

Original languageEnglish (US)
Pages (from-to)211-216
Number of pages6
JournalChemical Physics Letters
Volume512
Issue number4-6
DOIs
StatePublished - Aug 25 2011

ASJC Scopus subject areas

  • General Physics and Astronomy
  • Physical and Theoretical Chemistry

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