Remote plasma ALD silver nanoparticles on graphene

Sanna Arpiainen, Y. Chen, M. Mäkelä, J. Niinistö, Harri Lipsanen, Jouni Ahopelto, M. Ritala, M. Leskelä

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

    Abstract

    We report on the growth of silver nanoparticles (AgNPs) on graphene and study the applicability of the material for Surface Enhanced Raman Spectroscopy (SERS). Graphene has been shown to enhance the SERS signal with AgNPs by a factor of 2 - 17 due to charge transfer effects. Direct deposition of NPs can provide more uniform spatial distribution than spin on deposition of chemically derived NPs, and ALD has more potential for tuning the NP size and density if compared to evaporation. In experiments, the relative enhancement in R6G SERS signal was similar on both SIO2 and graphene templates, despite the lower density of the AgNPs on graphene. Most importantly, graphene was found to quench the background fluorescence by an order of magnitude when compared to SiO2.
    Original languageEnglish
    Title of host publicationBALD2014 Abstract book
    Publication statusPublished - 2014
    MoE publication typeNot Eligible
    Event12th International Baltic Conference on Atomic Layer Deposition, Baltic ALD 2014 - Helsinki, Finland
    Duration: 12 May 201413 May 2014
    Conference number: 12
    http://www.aldcoe.fi/bald2014/program.pdf (Program)
    http://www.aldcoe.fi/bald2014/posters.pdf (Posters)

    Conference

    Conference12th International Baltic Conference on Atomic Layer Deposition, Baltic ALD 2014
    Abbreviated titleBaltic ALD 2014
    CountryFinland
    CityHelsinki
    Period12/05/1413/05/14
    OtherAbstracts reviewed and published.
    Internet address

    Keywords

    • graphene
    • remote plasma ALD
    • nanoparticle
    • SERS

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  • Cite this

    Arpiainen, S., Chen, Y., Mäkelä, M., Niinistö, J., Lipsanen, H., Ahopelto, J., Ritala, M., & Leskelä, M. (2014). Remote plasma ALD silver nanoparticles on graphene. In BALD2014 Abstract book