Stability enhancement of partially-oxidized porous silicon nanostructures modified with ethyl undecylenate

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DOIResolve DOI: http://doi.org/10.1021/nl010061a
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TypeArticle
Journal titleNano Letters
ISSN1530-6984
Volume1
Issue12
Pages713717; # of pages: 5
AbstractThe thermal reaction of ethyl undecylenate with a hydrogen-terminated porous silicon surface takes place at 85 C to yield an organic monolayer covalently attached to the surface through Si-C bonds. The presence of traces of water in ethyl undecylenate induces a partial oxidation of the surface and leads to a surface that is composed of alkylated and oxidized regions. A PSi surface with a comparable chemical composition was prepared by the direct reaction of an electrochemically anodized PSi surface (in 1 M H2SO4) with anhydrous ethyl undecylenate. The physical and chemical properties of the functionalized surfaces have been characterized using photoluminescence, transmission infrared, and X-ray photoelectron spectroscopies. The derivatized surfaces proved to be very stable in boiling CCl4 and water, and against corrosion when exposed to 100% humidity in air.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Steacie Institute for Molecular Sciences; NRC Institute for Microstructural Sciences
Peer reviewedNo
Identifier19345410
NPARC number12337692
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Record identifier342c2e70-83f1-4980-b2e7-c64330dec29c
Record created2009-09-10
Record modified2016-05-09
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