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A Route to Nanoscopic SiO 2 Posts via Block Copolymer Templates
Author(s) -
Kim H.C.,
Jia X.,
Stafford C. M.,
Kim D. H.,
McCarthy T. J.,
Tuominen M.,
Hawker C. J.,
Russell T. P.
Publication year - 2001
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 - 10.1002/1521-4095(200106)13:11<795::aid-adma795>3.0.co;2-1
Subject(s) - materials science , copolymer , nanoscopic scale , template , polymer , nanotechnology , layer (electronics) , coating , composite material
A surface covered with a nanopatterned, regularly spaced array of SiO 2 blocks is obtained by coating silica with a block copolymer, selectively removing one polymer from the layer, depositing SiO 2 in the voids, and finally degrading the second polymer. The Figure shows an AFM image of a finished sample. Rough surfaces of this type are very promising candidates for sensor and lab‐on‐a‐chip applications.