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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/11053

Title: Deposition of functionalized gold nanoparticles onto modified silicon substrates
Authors: Riskin, Alexander
De Dobbelaere, Christopher
Elen, Ken
D'Haen, Jan
Van Den Rul, Heidi
Mullens, Jules
Hardy, An
Van Bael, Marlies K.
Issue Date: 2010
Publisher: WILEY-V C H VERLAG GMBH
Citation: PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 207(4). p. 864-871
Abstract: In this report, an existing phase transfer method for the synthesis of alkylamine- or alkanethiol-functionalized gold nanoparticles (NPs) is investigated. A parameter study shows that the concentration of the gold salt used is important for the stability of the resulting sol, but has little effect on the final average particle size or the size distribution. By adding dodecanethiol before the reduction, the formation of NPs was inhibited, providing evidence for the autocatalytic pathway for the formation of metallic NPs in wet chemical synthesis proposed in the literature. The resulting functionalized gold NPs are deposited onto Si-OH, octadecyltrichlorosilane (OTS) or 3-mercaptopropyltrimethoxysilane modified SiO2/Si substrates. scanning electron microscope (SEM) is used to analyze the ordering behavior and surface coverage of the NPs and it is shown that the difference in affinity for the substrate has a profound effect on the deposition behavior. The functionalization of the substrates and of the NPs is confirmed by grazing angle attenuated total reflectance fourier transform infrared spectroscopy (GATR-FTIR). (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Notes: [Riskin, A.; De Dobbelaere, C.; Elen, K.; D'Haen, J.; Van den Rul, H.; Mullens, J.; Hardy, A.; Van Bael, M. K.] Hasselt Univ, Inst Mat Res, B-3590 Diepenbeek, Belgium. [D'Haen, J.; Van Bael, M. K.] Imecvzw Div IMOMEC, B-3590 Diepenbeek, Belgium. alexander.riskin@uhasselt.be; marlies.vanbael@uhasselt.be
URI: http://hdl.handle.net/1942/11053
DOI: 10.1002/pssa.200983323
ISI #: 000277565300015
ISSN: 1862-6300
Category: A1
Type: Journal Contribution
Validation: ecoom, 2011
Appears in Collections: Research publications

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