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Formation of large 2D arrays of shape-controlled colloidal nanoparticles at variable interparticle distances

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Ullrich,  Simon
Cellular Biophysics, Max Planck Institute for Medical Research, Max Planck Society;

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Scheeler,  Sebastian
Cellular Biophysics, Max Planck Institute for Medical Research, Max Planck Society;

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Pacholski,  Claudia
Cellular Biophysics, Max Planck Institute for Medical Research, Max Planck Society;
Biophysical Chemistry, Institute of Physical Chemistry, University of Heidelberg, 69120 Heidelberg, Germany;

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Spatz,  Joachim P.
Cellular Biophysics, Max Planck Institute for Medical Research, Max Planck Society;
Biophysical Chemistry, Institute of Physical Chemistry, University of Heidelberg, 69120 Heidelberg, Germany;

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Citation

Ullrich, S., Scheeler, S., Pacholski, C., Pacholski, C., Spatz, J. P., & Kudera, S. (2013). Formation of large 2D arrays of shape-controlled colloidal nanoparticles at variable interparticle distances. Particle & Particle Systems Characterization, 30(1), 102-108. doi:10.1002/ppsc.201200065.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0010-4BC9-D
Abstract
A method for the production of homogeneous layers of nanoparticles of arbitrary shape is presented. The method relies on a ligand exchange with a functionalized polymer and a subsequent self-assembly of a thin film on the substrates. The interparticle distances in the layer can be adjusted by the length of the polymer. In the case of spherical particles, the approach yields quasi-hexagonal structures; in the case of anisotropic particles, the minimum distance between adjacent particles is controlled. Regular arrangements of the nanoparticles covering areas of several square centimeters are achieved.