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|Title:||Layer-by-layer assembled gold nanoparticle films on amine-terminated substrates|
|Citation:||Zhang, F., Srinivasan, M.P. (2008-03-15). Layer-by-layer assembled gold nanoparticle films on amine-terminated substrates. Journal of Colloid and Interface Science 319 (2) : 450-456. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jcis.2007.12.008|
|Abstract:||This work reports the fabrication and characterization of multilayered gold nanoparticle (AuNP) thin films on aminosilane functionalized substrates. The films are fabricated via layer-by-layer (LbL) assembly using as-synthesized, un-modified AuNPs and poly(allylamine hydrochloride) as the building blocks. While most literature reports that AuNP based LbL assemblies are constructed with a single interlayer binding force, this work shows that both coordination and electrostatic interaction are involved in the process of assembly based on X-ray photoelectron spectroscopic results. The stepwise film growth behavior is demonstrated by atomic force spectroscopy and UV-vis spectroscopy. It is found that the particles agglomerate with each other and form large clusters when the number of assembled layers increases. © 2007 Elsevier Inc. All rights reserved.|
|Source Title:||Journal of Colloid and Interface Science|
|Appears in Collections:||Staff Publications|
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