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

doi:10.1007/s11664-009-0961-6

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 journal › Article › peer-review

17 Scopus citations

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 language	English (US)
Pages (from-to)	138-143
Number of pages	6
Journal	Journal of Electronic Materials
Volume	39
Issue number	1
DOIs	https://doi.org/10.1007/s11664-009-0961-6
State	Published - Jan 2010
Externally published	Yes

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

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10.1007/s11664-009-0961-6

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

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.",

keywords = "Energy transfer, Nanoparticles, Phosphate glass, Silver",

author = "Jim{\'e}nez, {J. A.} and S. Lysenko and Vikhnin, {V. S.} and H. Liu",

note = "Funding Information: The authors wish to thank Prof. Dr. Carlos R. Cabrera and Oscar Resto from the Center for Nanoscale Materials at the University of Puerto Rico (UPR), R{\'i}o Piedras Campus for TEM experiments. Financial support from the Alliance for Graduate Education and the Professoriate 2008– 2009 (AGEP) Research Fellowship (Award #0302696), the UPR-M DoE-SR Research Scholarship, and the Alfred P. Sloan Foundation Minority Ph.D. Program Scholarship is gratefully acknowledged.",

year = "2010",

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doi = "10.1007/s11664-009-0961-6",

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AU - Jiménez, J. A.

AU - Lysenko, S.

AU - Vikhnin, V. S.

AU - Liu, H.

N1 - Funding Information: The authors wish to thank Prof. Dr. Carlos R. Cabrera and Oscar Resto from the Center for Nanoscale Materials at the University of Puerto Rico (UPR), Río Piedras Campus for TEM experiments. Financial support from the Alliance for Graduate Education and the Professoriate 2008– 2009 (AGEP) Research Fellowship (Award #0302696), the UPR-M DoE-SR Research Scholarship, and the Alfred P. Sloan Foundation Minority Ph.D. Program Scholarship is gratefully acknowledged.

PY - 2010/1

Y1 - 2010/1

N2 - 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.

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

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Keywords

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