Deflected capillary force lithography

Yangjun Cai, Zhi Zhao, Jixin Chen, Tinglu Yang, Paul S. Cremer

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


Herein we introduce a novel strategy based on capillary force lithography (CFL) to fabricate asymmetric polymeric ring structures by applying both shear and nomal forces to a poly(dimethylsiloxane) stamp. The mechanism for the formation of asymmetric rings is caused by the deflection of cylindrical PDMS pillars due to the shear load, which is therefore termed deflected CFL (dCFL). The asymmetric polymeric rings could be readily transferred to an underlying gold layer to generate split ring structures with tunable opening angles. Asymmetric structures based upon trigular and square-shaped pillars were also fabricated. These elements were formed into periodic arrays over surface areas as large as 1 cm 2 and may have optical and electromagnetic applications.

Original languageEnglish (US)
Pages (from-to)1548-1556
Number of pages9
JournalACS nano
Issue number2
StatePublished - Feb 28 2012

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)


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