Real-time optical microspectroscopy and activation energy of Ag nanoparticle growth in thin silica films

J. A. Jiménez; M. Sendova

doi:10.1016/j.phpro.2012.03.688

Real-time optical microspectroscopy and activation energy of Ag nanoparticle growth in thin silica films

J. A. Jiménez, M. Sendova

Biochemistry, Chemistry & Physics

New College of Florida

Research output: Contribution to journal › Conference article › peer-review

2 Scopus citations

Abstract

Significant progress in understanding noble metal species transformations in dielectrics can be achieved from the real-time monitoring of optical properties during material processing. In this work, in situ optical microspectroscopy is employed to study the Ostwald stage of Ag nanoparticle (NP) growth in nano-thin SiO2 films on soda glass substrates during heat treatment in air in the 550 - 600 °C range. The evolution of Ag NP size is assessed in the framework of Mie extinction and crystal growth theories. An Arrhenius-type analysis of a set of time-dependent isotherms yields an activation energy of 1.9 eV for the Ostwald growth.

Original language	English
Pages (from-to)	36-41
Number of pages	6
Journal	Physics Procedia
Volume	29
DOIs	https://doi.org/10.1016/j.phpro.2012.03.688
State	Published - 2012
Event	16th International Conference on Luminescence and Optical Spectroscopy of Condensed Matter, ICL 2011 - Ann Arbor, United States Duration: Jun 26 2011 → Jul 1 2011

Scopus Subject Areas

General Physics and Astronomy

Keywords

Crystal growth
heat treatment
in situ measurements
nanocomposites
optical properties
surface plasmon resonance

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10.1016/j.phpro.2012.03.688

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title = "Real-time optical microspectroscopy and activation energy of Ag nanoparticle growth in thin silica films",

abstract = "Significant progress in understanding noble metal species transformations in dielectrics can be achieved from the real-time monitoring of optical properties during material processing. In this work, in situ optical microspectroscopy is employed to study the Ostwald stage of Ag nanoparticle (NP) growth in nano-thin SiO2 films on soda glass substrates during heat treatment in air in the 550 - 600 °C range. The evolution of Ag NP size is assessed in the framework of Mie extinction and crystal growth theories. An Arrhenius-type analysis of a set of time-dependent isotherms yields an activation energy of 1.9 eV for the Ostwald growth.",

keywords = "Crystal growth, heat treatment, in situ measurements, nanocomposites, optical properties, surface plasmon resonance",

author = "Jim{\'e}nez, {J. A.} and M. Sendova",

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T1 - Real-time optical microspectroscopy and activation energy of Ag nanoparticle growth in thin silica films

AU - Jiménez, J. A.

AU - Sendova, M.

PY - 2012

Y1 - 2012

N2 - Significant progress in understanding noble metal species transformations in dielectrics can be achieved from the real-time monitoring of optical properties during material processing. In this work, in situ optical microspectroscopy is employed to study the Ostwald stage of Ag nanoparticle (NP) growth in nano-thin SiO2 films on soda glass substrates during heat treatment in air in the 550 - 600 °C range. The evolution of Ag NP size is assessed in the framework of Mie extinction and crystal growth theories. An Arrhenius-type analysis of a set of time-dependent isotherms yields an activation energy of 1.9 eV for the Ostwald growth.

AB - Significant progress in understanding noble metal species transformations in dielectrics can be achieved from the real-time monitoring of optical properties during material processing. In this work, in situ optical microspectroscopy is employed to study the Ostwald stage of Ag nanoparticle (NP) growth in nano-thin SiO2 films on soda glass substrates during heat treatment in air in the 550 - 600 °C range. The evolution of Ag NP size is assessed in the framework of Mie extinction and crystal growth theories. An Arrhenius-type analysis of a set of time-dependent isotherms yields an activation energy of 1.9 eV for the Ostwald growth.

KW - Crystal growth

KW - heat treatment

KW - in situ measurements

KW - nanocomposites

KW - optical properties

KW - surface plasmon resonance

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AN - SCOPUS:84926061292

SN - 1875-3884

VL - 29

SP - 36

EP - 41

JO - Physics Procedia

JF - Physics Procedia

T2 - 16th International Conference on Luminescence and Optical Spectroscopy of Condensed Matter, ICL 2011

Y2 - 26 June 2011 through 1 July 2011

ER -

Real-time optical microspectroscopy and activation energy of Ag nanoparticle growth in thin silica films

Abstract

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