Dresden 2011 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 38: Poster: Colloids and Complex Liquids

CPP 38.15: Poster

Mittwoch, 16. März 2011, 17:00–19:00, P2

Self - Assembly of Two Dimensional Ordered Arrays of Mesoscopic Particles on Solid Surfaces — •Züleyha Yenice and Regine von Klitzing — Technische Universität Berlin, Stranski- Laboratorium für Physikalische und Theoretische Chemie, Institut für Chemie, Sekr. TC 9 Straße des 17. Juni 124 D - 10623 Berlin

Self-assembled two-dimensional (2D) colloidal crystals with submicrometer-scale periodicity are of considerable fundamental and technological importance in nanosphere lithography, optical devices, data storage and biosensors as well as model systems for 2D crystallization.

The objective of the current research is to control the distance between particles in a 2D lattice [1]. The deposition of the particles on to the wafer is accruing by spin coating technique. Here the effect of different rotational speed, type of solvent and different concentrations of the particles in the suspension were examined. For morphological observation an atomic force microscope (AFM) operating in the tapping mode was used. However, there is a lack of information about the preparation of high ordered colloidal arrays with the interparticle distance.

References [1] P. Jiang, M. J. McFarland. J. Am Chem. Soc. 2004,126, 13778-13786