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Proceedings Paper

Routines for controlling nanoparticles at surfaces and interfaces
Author(s): Michael Himmelhaus; Fanny Caroline; Hiroyuki Takei
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Paper Abstract

The utilization of self-assembly mechanisms for the controlled deposition of nanoparticles at surfaces and interfaces recently has gained increasing popularity. A variety of methods, ranging from the use of purely physical phenomena to the application of chemical functionalization of the particles and/or the surface, have been proposed for the fabrication of two-dimensional mesoscopic structures based on nanoparticle assemblies. Potential applications are found in chemical and biological sensing, photonics, mesoscopic optics, and mesoscale electronics. Here, we present our recent results on the controlled deposition of monodisperse polystyrene (PS) latex particles onto chemically modified surfaces by use of small organic molecules added in proper amounts to the suspensions. In particular, the role of entropic forces in screening chemical selectivity for surface adsorption is elucidated. Thereby, a route for the controlled deposition of the PS particles onto carboxyl-functionalized surface areas utilizing carbodiimide chemistry is developed.

Paper Details

Date Published: 4 December 2003
PDF: 7 pages
Proc. SPIE 5223, Physical Chemistry of Interfaces and Nanomaterials II, (4 December 2003); doi: 10.1117/12.508447
Show Author Affiliations
Michael Himmelhaus, Univ. Heidelberg (Germany)
Fanny Caroline, Univ. Heidelberg (Germany)
Hiroyuki Takei, Hitachi, Ltd. (Japan)

Published in SPIE Proceedings Vol. 5223:
Physical Chemistry of Interfaces and Nanomaterials II
Tianquan Lian; Hai-Lung Dai, Editor(s)

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