Active molecular plasmonics: controlling plasmon resonances with molecular switches. Academic Article uri icon


  • A gold nanodisk array, coated with bistable, redox-controllable [2]rotaxane molecules, when exposed to chemical oxidants and reductants, undergoes switching of its plasmonic properties reversibly. By contrast, (i) bare gold nanodisks and (ii) disks coated with a redox-active, but mechanically inert, control compound do not display surface-plasmon-based switching. Along with calculations based on time-dependent density functional theory, these experimental observations suggest that the nanoscale movements within surface-bound "molecular machines" can be used as the active components in plasmonic devices.

published proceedings

  • Nano Lett

author list (cited authors)

  • Zheng, Y. B., Yang, Y., Jensen, L., Fang, L., Juluri, B. K., Flood, A. H., ... Huang, T. J.

citation count

  • 199

complete list of authors

  • Zheng, Yue Bing||Yang, Ying-Wei||Jensen, Lasse||Fang, Lei||Juluri, Bala Krishna||Flood, Amar H||Weiss, Paul S||Stoddart, J Fraser||Huang, Tony Jun

publication date

  • February 2009