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Silicon Nanocrystals: Size‐Dependent Oxidation of Monodisperse Silicon Nanocrystals with Allylphenylsulfide Surfaces (Small 3/2015)
Author(s) -
Rinck Julia,
Schray Dirk,
Kübel Christian,
Powell Annie K.,
Ozin Geoffrey A.
Publication year - 2015
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201570015
Subject(s) - nanocrystal , silicon , materials science , dispersity , colloid , nanotechnology , photoluminescence , chemical engineering , silicon oxide , oxide , sulfur , optoelectronics , polymer chemistry , metallurgy , silicon nitride , engineering
Adding a sulfur atom to allylbenzene is shown by J. Rinck, G. A. Ozin, and co‐workers to boost the photoluminescence quantum yield of colloidal dispersions of silicon nanocrystals capped with allylphenylsulfide. On page 335, it allows investigation of their oxidative stability as a function of size and duration of exposure to air. The illustration depicts the allyphenylsulfide capping groups on the surface of the silicon nanocrystals, and the reaction of the nanocrystals with O 2 and H 2 O molecules in air, forming surface silicon oxide and silicon hydroxide groups.