Active Molecular Plasmonics: Controlling Plasmon Resonances with Molecular Switches

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

Research output: Contribution to journalArticlepeer-review

192 Scopus citations

Abstract

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.
Original languageEnglish (US)
Pages (from-to)819-825
Number of pages7
JournalNano Letters
Volume9
Issue number2
DOIs
StatePublished - Feb 11 2009
Externally publishedYes

Fingerprint Dive into the research topics of 'Active Molecular Plasmonics: Controlling Plasmon Resonances with Molecular Switches'. Together they form a unique fingerprint.

Cite this