Fabrication and Characterization of Self-Assembled Nanoparticle/Polyelectrolyte Multilayer Films

The Journal of Physical Chemistry. B
Nicola E CantStephen D Evans

Abstract

The formation of multilayer films of organothiol-stabilized gold nanoparticles and polyelectrolyte, synthesized using the "layer-by-layer" technique, has been investigated. The formation of such films requires the alternation of surface charge with each layer deposited and is thus amenable to study by the Kelvin probe technique. The early stages of multilayer film formation have been studied using a combination of X-ray photoelectron spectroscopy, spectroscopic ellipsometry, and Kelvin probe microscopy. Our results suggest that the polyelectrolyte/nanoparticle film can be considered as a wide-band-gap semiconductor with a depletion width, at the substrate/film interface, extending several nanometers into the film. From our ellipsometry data, we are able to provide optical constants for these hybrid organic/inorganic films.

Citations

Jul 16, 2014·The Analyst·Omar E Rivera-BetancourtRichard A Dluhy
Oct 22, 2015·Physical Chemistry Chemical Physics : PCCP·S MitzscherlingM Bargheer
Aug 21, 2014·Chemical Reviews·João Borges, João F Mano
Sep 13, 2012·ACS Nano·Ryan T HillAshutosh Chilkoti
Dec 30, 2014·ACS Photonics·Ryan T HillAshutosh Chilkoti
Jul 21, 2006·The Journal of Physical Chemistry. B·Mariana ChireaFernando Silva
Jul 21, 2006·The Journal of Physical Chemistry. B·Dmitri A Brevnov, Corey Bungay

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