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Precise Control over Molecular Dimensions of Block‐Copolymer Domains Using the Interfacial Energy of Chemically Nanopatterned Substrates
Author(s) -
Edwards E. W.,
Montague M. F.,
Solak H. H.,
Hawker C. J.,
Nealey P. F.
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.200400763
Subject(s) - materials science , copolymer , nanoscopic scale , substrate (aquarium) , nanotechnology , polymer , epitaxy , surface energy , self assembly , composite material , oceanography , layer (electronics) , geology
Epitaxial assembly of block‐copolymer films (see Figure) onto chemically nanopatterned substrates results in arrays of nanoscopic domains that are defect‐free, oriented, and registered with the underlying substrate. The range of dimensions of features (or periodicity of structures) that can be patterned with perfection and registration strongly depends on the interfacial energy between the substrate and the polymer film.