Molecular logic gates using surface-enhanced raman-scattered light

Edward H. Witlicki, Carsten Johnsen, Stinne W. Hansen, Daniel W. Silverstein, Vincent J. Bottomley, Jan O. Jeppesen, Eric W. Wong, Lasse Jensen, Amar H. Flood

Research output: Contribution to journalArticlepeer-review

41 Scopus citations


A voltage-activated molecular-plasmonics device was created to demonstrate molecular logic based on resonant surface-enhanced Raman scattering (SERS). SERS output was achieved by a combination of chromophore-plasmon coupling and surface adsorption at the interface between a solution and a gold nanodisc array. The chromophore was created by the self-assembly of a supramolecular complex with a redox-active guest molecule. The guest was reversibly oxidized at the gold surface to the +1 and +2 oxidation states, revealing spectra that were reproduced by calculations. State-specific SERS features enabled the demonstration of a multigate logic device with electronic input and optical output.

Original languageEnglish (US)
Pages (from-to)7288-7291
Number of pages4
JournalJournal of the American Chemical Society
Issue number19
StatePublished - May 18 2011

All Science Journal Classification (ASJC) codes

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


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