Sponge-like Si-SiO2 nanocomposite - Morphology studies of spinodally decomposed silicon-rich oxide

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • D. Friedrich - , Helmholtz-Zentrum Dresden-Rossendorf (Author)
  • B. Schmidt - , Helmholtz-Zentrum Dresden-Rossendorf (Author)
  • K. H. Heinig - , Helmholtz-Zentrum Dresden-Rossendorf (Author)
  • B. Liedke - , Helmholtz-Zentrum Dresden-Rossendorf (Author)
  • A. Mücklich - , Helmholtz-Zentrum Dresden-Rossendorf (Author)
  • R. Hübner - , Helmholtz-Zentrum Dresden-Rossendorf (Author)
  • D. Wolf - , TUD Dresden University of Technology (Author)
  • S. Kölling - , Fraunhofer Institute for Electronic Nano Systems (Author)
  • T. Mikolajick - , Chair of Nanoelectronics, NaMLab - Nanoelectronic materials laboratory gGmbH (Author)

Abstract

Sponge-like Si nanostructures embedded in SiO2 were fabricated by spinodal decomposition of sputter-deposited silicon-rich oxide with a stoichiometry close to that of silicon monoxide. After thermal treatment a mean feature size of about 3 nm was found in the phase-separated structure. The structure of the Si-SiO2 nanocomposite was investigated by energy-filtered transmission electron microscopy (EFTEM), EFTEM tomography, and atom probe tomography, which revealed a percolated Si morphology. It was shown that the percolation of the Si network in 3D can also be proven on the basis of 2D EFTEM images by comparison with 3D kinetic Monte Carlo simulations.

Details

Original languageEnglish
Article number131911
JournalApplied physics letters
Volume103
Issue number13
Publication statusPublished - 23 Sept 2013
Peer-reviewedYes

External IDs

ORCID /0000-0003-3814-0378/work/142256312

Keywords

ASJC Scopus subject areas