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Individual Confinement of Block Copolymer Microdomains in Nanoscale Crossbar Templates
Author(s) -
Park Woon Ik,
Jung Yun Kyung,
Kim YongJoo,
Shin Weon Ho,
Choi Young Joong,
Park Tae Wan,
Shin Jung Ho,
Jeong Young Hun,
Cho Jeong Ho,
Shin HyoSoon,
Kwon SeHun,
Jung Yeon Sik,
Kim Kwang Ho
Publication year - 2019
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201805795
Subject(s) - nanodot , materials science , template , copolymer , crossbar switch , nanotechnology , nanoscopic scale , nanostructure , self assembly , annealing (glass) , nanodevice , dewetting , polymer , thin film , composite material , computer science , telecommunications
Highly ordered pattern formation of block copolymers (BCPs) within nanoscale templates is of great interest for generating diverse ordered nanostructures. Here, introduced is a combined methodology of nanotransfer printing (nTP) and BCP self‐assembly to guide the formation of spherical nanodots within a printed crossbar nanotemplate. By successfully accommodating poly(styrene‐ b ‐dimethylsiloxane) (PS‐ b ‐PDMS) BCPs in the guiding metallic crossbar nanotemplate (≈30 × 30 nm 2 ), a well‐organized array of single‐domain PDMS spheres (≈10 nm) with a square symmetry is successfully obtained in an extremely short annealing time (<5 s). The self‐consistent field theory simulation results theoretically explain the spontaneous one‐to‐one accommodation of PDMS spheres in the confined area of the crossbar template. This approach can potentially be extended to the many other BCP materials and morphologies to diversify the geometry of self‐assembled BCP and/or transfer‐printed nanopatterns for various types of nanodevice applications.