Formation of one-dimensional capped ZnO nanoparticle assemblies at the air/water interface

Shortell, Matthew P., Liu, Hong-Wei, Zhu, Huaiyong, Jaatinen, Esa A., & Waclawik, Eric R. (2010) Formation of one-dimensional capped ZnO nanoparticle assemblies at the air/water interface. Langmuir, 26(18), pp. 14472-14478.

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The self-assembling behavior and microscopic structure of zinc oxide nanoparticle Langmuir-Blodgett monolayer films were investigated for the case of zinc oxide nanoparticles coated with a hydrophobic layer of dodecanethiol. Evolution of nanoparticle film structure as a function of surface pressure (π) at the air-water interface was monitored in situ using Brewster’s angle microscopy, where it was determined that π=16 mN/m produced near-defect-free monolayer films. Transmission electron micrographs of drop-cast and Langmuir-Schaefer deposited films of the dodecanethiol-coated zinc oxide nanoparticles revealed that the nanoparticle preparation method yielded a microscopic structure that consisted of one-dimensional rodlike assemblies of nanoparticles with typical dimensions of 25 x 400 nm, encased in the organic dodecanethiol layer. These nanoparticle-containing rodlike micelles were aligned into ordered arrangements of parallel rods using the Langmuir-Blodgett technique.

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9 citations in Web of Science®
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ID Code: 41114
Item Type: Journal Article
Refereed: Yes
Additional Information: This article is freely available from the American Chemical Society website 12 months after the publication date. See links to publisher website in this record
Keywords: ZnO Quantum Dots, dodecanethiol, organic capping, Langmuir-Blodgett
DOI: 10.1021/la102152e
ISSN: 0743-7463
Subjects: Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > MACROMOLECULAR AND MATERIALS CHEMISTRY (030300) > Physical Chemistry of Materials (030304)
Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600) > Colloid and Surface Chemistry (030603)
Divisions: Past > Schools > Chemistry
Past > QUT Faculties & Divisions > Faculty of Science and Technology
Past > Institutes > Institute for Sustainable Resources
Past > Schools > Physics
Copyright Owner: Copyright © 2010 American Chemical Society
Deposited On: 05 Apr 2011 22:13
Last Modified: 26 Feb 2013 19:16

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