Nanoscale rings from silicon-containing triblock terpolymers

Marc D. Rodwogin, A. Baruth, Elizabeth A. Jackson, C. Leighton, Marc A. Hillmyer

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


Nanoscopic ring arrays of various materials show promise for both technological applications and fundamental studies. In this work we report the preparation of sub-50 nm diameter ring arrays from metallic thin films using a block polymer lithographic pattern transfer approach. We prepared a triblock terpolymer that adopts a core-shell cylindrical morphology where the shell is an oxidizable polydimethylsiloxane block. Solvent annealed thin films of this terpolymer produce cylindrical features oriented perpendicular to the substrate surface. The polydimethylsiloxane shell is then converted into SiO x rings by an oxygen reactive ion etch. The resultant hard mask pattern is then transferred into Au, Ni 80Fe 20, and Ni 80Cr 20 thin films via Ar ion beam milling, demonstrating the generality of the approach.

Original languageEnglish (US)
Pages (from-to)3550-3557
Number of pages8
JournalACS Applied Materials and Interfaces
Issue number7
StatePublished - Jul 25 2012
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Materials Science(all)


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