Nanostructured surface enhanced Raman scattering substrates for explosives detection

Michael Stenbaek Schmidt, Jesper Kenneth Olsen, Anja Boisen, Jörg Hübner

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    Abstract

    Here we present a method for trace detection of explosives in the gas phase using novel surface enhanced Raman scattering (SERS) spectroscopy substrates. Novel substrates that produce an exceptionally large enhancement of the Raman effect were used to amplify the Raman signal of explosives molecules adsorbed onto the substrate. The substrates were fabricated in a cleanroom process which only requires two steps to produce well controlled nano-sized high aspect ratio metal pillars. These substrates had superior chemical sensing performance in addition to a more cost effective fabrication process compared to existing commercial substrates. Therefore it is believed that these novel substrates will be able to make SERS more applicable in mobile explosives detection systems to be deployed in for example landmine clearance actions.
    Original languageEnglish
    Title of host publicationProceedings of 2010 IEEE Sensors
    PublisherIEEE
    Publication date2010
    Pages2634 - 2637
    ISBN (Print)9781424481705
    DOIs
    Publication statusPublished - 2010
    Event2010 IEEE Sensors - Chicago, IL, United States
    Duration: 1 Nov 20104 Nov 2010
    http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=5678851

    Conference

    Conference2010 IEEE Sensors
    CountryUnited States
    CityChicago, IL
    Period01/11/201004/11/2010
    Internet address

    Keywords

    • adsorption
    • clean rooms
    • explosives
    • gas sensors
    • nanosensors
    • nanostructured materials
    • substrates
    • surface enhanced Raman scattering

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