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The formation of Er-oxide nanoclusters in SiO2 thin films with excess Si

Abstract

Abstract: The nucleation, distribution, and composition of erbium embedded in a SiO2-Si layer were studied with high resolution transmission electron microscopy (TEM), electron energy loss spectroscopy, energy filtered TEM, scanning transmission electron microscopy, and x-ray photoelectron spectroscopy. When SiO2 layer contains small amounts of Si and Er, nanoclusters of Er oxide are formed throughout the whole layer. The exposure of oxide to an electron beam with 1.56x10(6) electrons nm(2) s causes nanocluster growth. Initially this growth matches the Ostwald ripening model, but eventually it stagnates at a constant nanocluster radius of 2.39 nm

Category

Academic article

Language

English

Author(s)

  • Annett Thøgersen
  • Jeyanthinath Mayandi
  • Terje Finstad
  • Arne Olsen
  • Spyros Diplas
  • Masanori Mitome
  • Yoshio Bando

Affiliation

  • University of Oslo
  • SINTEF
  • National Institute for Materials Science

Year

2009

Published in

Journal of Applied Physics

ISSN

0021-8979

Publisher

AIP Publishing (American Institute of Physics)

Volume

106

Issue

1

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