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Ordered coalescence of Si nanocrystals in SiO2

Y. Q. Wang, R. Smirani, G. G. Ross, and F. Schiettekatte
Phys. Rev. B 71, 161310(R) – Published 25 April 2005

Abstract

The microstructure of the Si nanocrystals (Si nc) has been investigated using conventional and high-resolution transmission electron microscopy (HRTEM). For most of the nanocrystals (>90%) larger than 10 nm, HRTEM observations show that they are formed by the coalescence of smaller ones. Two kinds of coalescence, one being the preferential attachments of small particles to the {111} facets of a seed nanoparticle, and the other being an ordered combination of two or more small nanocrystals with appropriate orientations, have been observed.

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  • Received 4 March 2005

DOI:https://doi.org/10.1103/PhysRevB.71.161310

©2005 American Physical Society

Authors & Affiliations

Y. Q. Wang1, R. Smirani1, G. G. Ross1,*, and F. Schiettekatte2

  • 1INRS-EMT, 1650, Boulevard Lionel-Boulet, Varennes, Québec, Canada J3X 1S2
  • 2Laboratoire René-J.A-Lévesque, Université de Montréal, Montréal, Québec, Canada, H3C 3J7

  • *Corresponding author. Electronic address: ross@emt.inrs.ca

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Issue

Vol. 71, Iss. 16 — 15 April 2005

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