Interfacial effects in the relaxation dynamics of silver nanometal-glass composites probed by transient grating spectroscopy

J. A. Jiménez, S. Lysenko, V. S. Vikhnin, H. Liu

Research output: Contribution to journalArticle

Abstract

Relaxation dynamics of silver nanoparticles (NPs) embedded in glass have been studied by picosecond time-resolved transient grating (TG) spectroscopy. Phosphate-based glasses were prepared by melting and heat-treatment processes by which two different nanometal-glass composites were produced. The first is a glass system containing silver and tin in which Ag NPs are embedded in the matrix upon heat treatment. The second is a heat-treated silver-doped glass with spectroscopic indications of Ag +-Ag 0 pairs located at or near the surface of the NPs. The time evolution of the light-induced TG for the Ag/Sn-doped glass shows an uncommon relaxation on the nanosecond time scale. Such behavior is explained in terms of energy transfer processes between polaronic and/or excitonic states in the near-interface region of the glass matrix and the NPs. In contrast, a faster monotonic relaxation is observed for the Ag-doped nanocomposite. This result is attributed to Ag NP → Ag +-Ag 0 plasmon resonance energy transfer.

Original languageEnglish (US)
Pages (from-to)138-143
Number of pages6
JournalJournal of Electronic Materials
Volume39
Issue number1
DOIs
StatePublished - Jan 1 2010

Fingerprint

Silver
silver
Spectroscopy
gratings
Glass
composite materials
glass
Composite materials
Nanoparticles
spectroscopy
nanoparticles
Energy transfer
heat treatment
energy transfer
Heat treatment
Tin
matrices
tin
Nanocomposites
nanocomposites

Keywords

  • Energy transfer
  • Nanoparticles
  • Phosphate glass
  • Silver

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

Cite this

Interfacial effects in the relaxation dynamics of silver nanometal-glass composites probed by transient grating spectroscopy. / Jiménez, J. A.; Lysenko, S.; Vikhnin, V. S.; Liu, H.

In: Journal of Electronic Materials, Vol. 39, No. 1, 01.01.2010, p. 138-143.

Research output: Contribution to journalArticle

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AU - Liu, H.

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