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Formation of Large 2D Arrays of Shape‐Controlled Colloidal Nanoparticles at Variable Interparticle Distances
Author(s) -
Ullrich Simon,
Scheeler Sebastian P.,
Pacholski Claudia,
Spatz Joachim P.,
Kudera Stefan
Publication year - 2013
Publication title -
particle and particle systems characterization
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.877
H-Index - 56
eISSN - 1521-4117
pISSN - 0934-0866
DOI - 10.1002/ppsc.201200065
Subject(s) - nanoparticle , materials science , colloid , polymer , anisotropy , homogeneous , colloidal particle , hexagonal crystal system , nanotechnology , layer (electronics) , square (algebra) , chemical physics , optics , chemical engineering , geometry , crystallography , physics , chemistry , composite material , statistical physics , mathematics , engineering
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.