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1 PublicationSponge-like Si-SiO2 nanocomposite – morphology studies of spinodally decomposed silicon-rich oxide
Friedrich, D.; Schmidt, B.; Heinig, K. H.; Liedke, B.; Mücklich, A.; Hübner, R.; Wolf, D.; Kölling, S.; Mikolajik, T.
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.
Keywords: Silicon rich oxide; spinodal decomposition; silicon sponge; EFTEM; nanocomposite
Involved research facilities
- Ion Beam Center DOI: 10.17815/jlsrf-3-159
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- DOI: 10.17815/jlsrf-3-159 is cited by this (Id 18945) publication
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Applied Physics Letters 103(2013)13, 131911
DOI: 10.1063/1.4820453
ISSN: 1077-3118
Cited 12 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-18945
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