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Letter

Nature Materials 6, 866–870 (1 November 2007) | doi:10.1038/nmat2029

Internal structure visualization and lithographic use of periodic toroidal holes in liquid crystals

Dong Ki Yoon , M. C. Choi , Yun Ho Kim , Mahn Won Kim , Oleg D. Lavrentovich & Hee-Tae Jung

The formation of a large-area ordered structure by organic molecular soft building blocks is one of the most exciting interdisciplinary research areas in current materials science and nanotechnology. So far, several distinct organic building blocks—including colloids, block copolymers and surfactants—have been examined as potential materials for the creation of lithographic templates.