Shifting networks to achieve subgroup symmetry properties.

Hsueh, Han-Yu; Ling, Yi-Chun; Wang, Hsiao-Fang; Chien, Lung-Yu Chang; Hung, Yu-Chueh; Thomas, Edwin L; Ho, Rong-Ming · Adv Mater · 2014

basic_science · Level V

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Abstract

A simple method for the preparation of nanomaterials with new functionality by physical displacement of a network phase is suggested, giving a change in space group symmetry and hence properties. A double gyroid structure made by the self-assembly of block copolymers is used as a model system for the demonstration of shifting networks to achieve single gyroid-like scattering properties. Free-standing single gyroid-like network materials can be fabricated to give nanophotonic properties, similar to the photonic properties of a butterfly wing structure.