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Directed Self‐Assembly of Silica Nanoparticles into Nanometer‐Scale Patterned Surfaces Using Spin‐Coating
Author(s) -
Xia D.,
Biswas A.,
Li D.,
Brueck S. R. J.
Publication year - 2004
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200400095
Subject(s) - materials science , nanometre , nanotechnology , nanoparticle , spin coating , particle (ecology) , lithography , suspension (topology) , self assembly , nanoscopic scale , colloid , coating , chemical engineering , optoelectronics , composite material , oceanography , mathematics , homotopy , geology , pure mathematics , engineering
Directed self‐assembly of silica nanoparticles into 1D grooves (see Figure) and 2D holes has been demonstrated. Large‐area nanometer‐scale‐patterned surfaces were defined utilizing interferometric lithography. The particle dimensions and the nanopatterned structures were as small as 50 nm. The final particle distribution depends on the pattern dimensions and symmetry as well as on spin speed, pH of the colloidal suspension, and particle size.