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Ordering of Polystyrene Nanoparticles on Substrates Pre-Coated with Different Polyelectrolyte Architectures

Title data

Yenice, Zuleyha ; Karg, Matthias ; von Klitzing, Regine:
Ordering of Polystyrene Nanoparticles on Substrates Pre-Coated with Different Polyelectrolyte Architectures.
In: International Journal of Molecular Sciences. Vol. 14 (2013) Issue 6 . - pp. 12893-12913.
ISSN 1422-0067
DOI: https://doi.org/10.3390/ijms140612893

Official URL: Volltext

Abstract in another language

Adjusting the inter-particle distances in ordered nanoparticle arrays can create new nano-devices and is of increasing importance to a number of applications such as nanoelectronics and optical devices. The assembly of negatively charged polystyrene (PS) nanoparticles (NPs) on Poly(2-(dimethylamino)ethyl methacrylate) (PDMAEMA) brushes, quaternized PDMAEMA brushes and Si/PEI/(PSS/PAH)(2), was studied using dip-and spin-coating techniques. By dip-coating, two dimensional (2-D), randomly distributed non-close packed particle arrays were assembled on Si/PEI/(PSS/PAH)(2) and PDMAEMA brushes. The inter-particle repulsion leads to lateral mobility of the particles on these surfaces. The 200 nm diameter PS NPs tended to an inter-particle distance of 350 to 400 nm (center to center). On quaternized PDMAEMA brushes, the strong attractive interaction between the NPs and the brush dominated, leading to clustering of the particles on the brush surface. Particle deposition using spin-coating at low spin rates resulted in hexagonal close-packed multilayer structures on Si/PEI/(PSS/PAH)(2). Close-packed assemblies with more pronounced defects are also observed on PDMAEMA brushes and QPDMAEMA brushes. In contrast, randomly distributed monolayer NP arrays were achieved at higher spin rates on all polyelectrolyte architectures. The area fraction of the particles decreased with increasing spin rate.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: 169IC Times Cited:0 Cited References Count:49
Keywords: self-assembly; polystyrene nanoparticles; dip-coating; spin-coating; non-close packed; polyelectrolyte brushes; PDMAEMA brushes; multilayer films; particle deposition; interface
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Juniorprofessur Kolloidale Systeme
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Former Professors > Juniorprofessur Kolloidale Systeme - Juniorprof. Dr. Matthias Karg
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Former Professors
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 04 Dec 2014 13:22
Last Modified: 18 Feb 2015 08:14
URI: https://eref.uni-bayreuth.de/id/eprint/3554