A Convenient Method for Preparing Alkyl-Functionalized Silicon Nanocubes

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DOIResolve DOI: http://doi.org/10.1021/ja3061497
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TypeArticle
Journal titleJournal of the American Chemical Society
ISSN0002-7863
1520-5126
Volume134
Issue34
Pages1395813961; # of pages: 4
AbstractThe first solid-state synthesis of diamond structure silicon nanocube structures with edge lengths of 8–15 nm is reported. It is well-established that controlled high-temperature processing of hydrogen silsesquioxane produces exceptionally well-defined pseudospherical silicon nanocrystals. However, only a small number of accounts outlining shape-controlled synthesis have appeared. We report here that, upon prolonged annealing in an oxide matrix, nanocrystal surfaces thermodynamically self-optimize, yielding particles with cubic geometries. Surface functionalization of the resulting nanocubes is readily achieved via thermal hydrosilylation. Discussion will include description of the synthetic procedure, comprehensive material characterization, and the factors that lead to the formation of cubic structures.
Publication date
LanguageEnglish
AffiliationSecurity and Disruptive Technologies; National Research Council Canada
Peer reviewedYes
NPARC number21269029
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Record identifier2ee0fbc2-cfa4-4b14-ac48-7a5732a49774
Record created2013-12-02
Record modified2016-05-09
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