Monolayer assembly and striped architecture of Co nanoparticles on organic functionalized Si surfaces

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We present a new strategy to fabricate a monolayer assembly of Br-terminated Co nanoparticles on functionalized Si surfaces by using chemical covalent bonding and microcontact printing method. Self-assembled monolayers (SAMs) of the Co nanoparticles formed on the hydroxyl-terminated Si surface exhibit two-dimensional island networks with locally ordered arrays via covalent linkage between nanoparticles and surface. On the other hand, SAMs of the nanoparticles on the aminopropyl-terminated Si surface show an individual and random distribution over an entire surface. Furthermore, we have fabricated striped architectures of Co nanoparticles using a combination of microcontact printing and covalent linkage. Microcontact printing of octadecyltrichlorosilane and selective covalent linkage between nanoparticles and functionalized Si surfaces lead to a hybrid nanostructure with selectively assembled nanoparticles stripes on the patterned functionalized Si surfaces.
Publisher
SPRINGER
Issue Date
2005-03
Language
English
Article Type
Article
Keywords

GOLD NANOPARTICLES; NANOCRYSTAL SUPERLATTICES; COBALT NANOCRYSTALS; SILICON; PARTICLES; SHAPE; ORGANIZATION; COLLOIDS; DENSITY; LAYERS

Citation

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, v.80, no.6, pp.1305 - 1310

ISSN
0947-8396
DOI
10.1007/s00339-004-3159-z
URI
http://hdl.handle.net/10203/11342
Appears in Collection
CH-Journal Papers(저널논문)
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