Nanosensing platforms: physics, technology and applications

Edwin Carlen, S. Chen, Mingliang Jin, Arpita De, Jan William van Nieuwkasteele, Johan G. Bomer

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    Abstract

    Novel nanotextured Au surfaces are presented with periodically self-aligned nanopyramid structures with precisely defined pitch that are closely packed with 2 nm separation gaps over large areas and form high-density (similar to 1 km cm(-2)) arrays of hot-spot scattering sites ideally suited for surface-enhanced Raman scattering (SERS) and Raman spectroscopy. Average Raman enhancement factors from physically adsorbed rhodamine 6G on patterned Au surfaces resulted in EF similar to 10(6). The Raman average EF has been characterized over large areas using benzenethiol monolayers chemisorbed on the Au nanopyramid surfaces. From the 1074 cm(-1) ring mode of BT on surfaces with 200 nm pitch the EF=(0.8 +/- 0.04)x10(6), and for surfaces with 500 nm pitch the EF=(0.32 +/- 0.01)x10(7) from over 99% of the imaged area. Maximum EF>10(8) have been measured in both cases
    Original languageEnglish
    Title of host publicationConference on Sensing Technologies for Global Health, Military medicine, Disaster Response and Environmental Monitoring II - and Biometric Technology for Human Identification IX
    Place of PublicationBellingham, WA
    PublisherSPIE
    Pages837110
    ISBN (Print)978-0-8194-9049-0
    DOIs
    Publication statusPublished - 2012
    EventConference on Sensing Technologies for Global Health, Military Medicine, Disaster Response and Environmental Monitoring II 2012 - Baltimore, United States
    Duration: 23 Apr 201225 Apr 2012

    Publication series

    NameProceedings of SPIE
    PublisherSPIE-Int soc optical engineering
    Volume8371
    ISSN (Print)0277-786X

    Conference

    ConferenceConference on Sensing Technologies for Global Health, Military Medicine, Disaster Response and Environmental Monitoring II 2012
    CountryUnited States
    CityBaltimore
    Period23/04/1225/04/12

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    Keywords

    • EWI-22952
    • IR-84272
    • METIS-296247

    Cite this

    Carlen, E., Chen, S., Jin, M., De, A., van Nieuwkasteele, J. W., & Bomer, J. G. (2012). Nanosensing platforms: physics, technology and applications. In Conference on Sensing Technologies for Global Health, Military medicine, Disaster Response and Environmental Monitoring II - and Biometric Technology for Human Identification IX (pp. 837110). (Proceedings of SPIE; Vol. 8371). Bellingham, WA: SPIE. https://doi.org/10.1117/12.920540