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Volume 5, Issue 6 (Suppl)
J Mat. Sci.
ISSN: 2321-6212
Advanced Materials 2017
October 26-28, 2017
OCTOBER 26-28, 2017 OSAKA, JAPAN
13
TH
INTERNATIONAL CONFERENCE ON
Advanced Materials and Nanotechnology
Orientation controlled gyroid structure thin films by substrate interactions in solvent vapor annealing
Yeongsik Kim
1
, Sungmin Park
1
, Wooseop Lee
1
, Su-Mi Hur
2
and Du Yeol Ryu
1
1
Yonsei University, Republic of Korea
2
Chonnam national University, Republic of Korea
A
well-defined 3D bicontinuous network structure in nanoscopic regular array has attracted considerable attention because
of its potential applications such as photonic crystals, meta-materials, energy devices and superconductor. In this study, the
asymmetric polystyrene-block-poly (methyl methacrylate) (PS-b-PMMA) thin films on the two different substrate with high-
molecular-weight were prepared to be exposed a neutral solvent vapor to generate a hexagonal (HEX) cylindrical morphology
to long-range ordered Gyroid (GYR). The interfacial interaction by different substrate interaction induced the two distinct
GYR, [211] and [111] planes, which were directed from cylinders, like the parallel and perpendicular orientation on the
selective and neutral substrate, respectively. Moreover, we further performed coarse-grained simulations of a block copolymer
model to provide the molecular mechanisms. Our results based on experiments and simulations suggest a simple route for the
controlled and well-defined GYR structures.
Biography
Yeongsik Kim is currently a PhD candidate at Yonsei University, Republic of Korea. He has published numerous research papers and articles in reputed journals
and has various other achievements in the related studies. He has extended his valuable service towards the scientific community with his extensive research work.
kim.yeongsik@yonsei.ac.krYeongsik Kim et al., J Mat. Sci. 2017, 5:6
DOI: 10.4172/2321-6212-C1-009