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

J. A. Jiménez, M. Sendova

Research output: Contribution to journalConference articlepeer-review

1 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 languageEnglish (US)
Pages (from-to)36-41
Number of pages6
JournalPhysics Procedia
Volume29
DOIs
StatePublished - 2012
Externally publishedYes
Event16th International Conference on Luminescence and Optical Spectroscopy of Condensed Matter, ICL 2011 - Ann Arbor, United States
Duration: Jun 26 2011Jul 1 2011

Keywords

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

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint

Dive into the research topics of 'Real-time optical microspectroscopy and activation energy of Ag nanoparticle growth in thin silica films'. Together they form a unique fingerprint.

Cite this