A nanoplasmonic switch based on molecular machines

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution


We aim to develop a molecular-machine-driven nanoplasmonic switch for its use in future nanophotonic integrated circuits (ICs) that have applications in optical communication, information processing, biological and chemical sensing. Experimental data show that an Au nanodisk array, coated with rotaxane molecular machines, switches its localized surface plasmon resonances (LSPR) reversibly when it is exposed to chemical oxidants and reductants. Conversely, bare Au nanodisks and disks coated with mechanically inert control compounds, do not display the same switching behavior. Along with calculations based on time-dependent density functional theory (TDDFT), these observations suggest that the nanoscale movements within surface-bound "molecular machines" can be used as the active components in plasmonic devices. ©2009 IEEE.
Original languageEnglish (US)
Title of host publicationTRANSDUCERS 2009 - 2009 International Solid-State Sensors, Actuators and Microsystems Conference
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages4
ISBN (Print)9781424441907
StatePublished - Jun 2009
Externally publishedYes


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