Complex High-Aspect-Ratio Metal Nanostructures by Secondary Sputtering Combined with Block Copolymer Self-Assembly.

Jeon, Hwan-Jin; Kim, Ju Young; Jung, Woo-Bin; Jeong, Hyeon-Su; Kim, Yun Ho; Shin, Dong Ok; Jeong, Seong-Jun; Shin, Jonghwa et al. · Adv Mater · 2016

basic_science · Level V

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Abstract

High-resolution (10 nm), high-areal density, high-aspect ratio (>5), and morphologically complex nanopatterns are fabricated from a single conventional block copolymer (BCP) structure with a 70 nm scale resolution and an aspect ratio of 1, through the secondary-sputtering phenomenon during the Ar-ion-bombardment process. This approach provides a foundation for the design of new routes to BCP lithography.