Generation of 30-50 nm structures using easily fabricated, composite PDMS masks

Teri W. Odom, Venkat R. Thalladi, J. Christopher Love, George M. Whitesides*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

166 Scopus citations


This communication demonstrates an approach to generate simple nanostructures with critical dimensions down to 30 nm over cm2-sized areas using composite PDMS masks. These masks were patterned with feature sizes down to 100 nm. When used in phase-shifting lithography, these masks generated arrays of structures in photoresist with line widths as small as 30 nm, slots in metal with features down to 40 nm, and wells in epoxy with diameters as small as 100 nm. The wells were used to prepare arrays of uniformly sized nanocrystals of salts.

Original languageEnglish (US)
Pages (from-to)12112-12113
Number of pages2
JournalJournal of the American Chemical Society
Issue number41
StatePublished - Oct 16 2002

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry


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