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Tytuł artykułu

Chemical stability of plasmon-active silver tips for tip-enhanced Raman spectroscopy

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Silver nanostructures are used in tip- and surface-enhanced Raman spectroscopy due to their high electric field enhancement over almost the entire visible spectral range. However, the low chemical stability of silver, compared to other noble metals, promotes silver sulfide and sulfate formation which decreases its plasmonic activity. This is why silver tips are usually prepared on the same day of the experiments or are disregarded in favour of gold that is chemically more stable. Since silver degradation cannot be avoided, we hypothesized that a protection layer may be able to minimize or control degradation. In this contribution, we report the successful preparation of 4-biphenylthiol and 4’-nitro-4-biphenylthiol self-assembled monolayers on silver tips in order to protect them against tarnishing and to investigate the effect on the life-time of the plasmonic activity. The electrochemically etched wire surface was probed via Raman spectroscopy and scanning electron microscopy. The best long term stability and resistance against corrosion was shown by a monolayer of 4-biphenylthiol formed from dimethylformamide which did not display any degradation of the metallic tip during the observed period. Here, we demonstrate an easy and straightforward approach towards increasing the chemical stability of silver TERS-active probes.
Wydawca

Czasopismo
Rocznik
Tom
1
Numer
1
Opis fizyczny
Daty
otrzymano
2014-06-23
zaakceptowano
2014-11-03
online
2015-01-09
Twórcy
  • Semiconductor
    Physics, Technische Universität Chemnitz, Chemnitz, 09107, Germany
  • Center for Advancing Electronics Dresden (cfaed),
    Technische Universität Chemnitz, Chemnitz, 09107, Germany
  • Semiconductor
    Physics, Technische Universität Chemnitz, Chemnitz, 09107, Germany
  • Center for Advancing Electronics Dresden (cfaed),
    Technische Universität Chemnitz, Chemnitz, 09107, Germany
autor
  • Semiconductor
    Physics, Technische Universität Chemnitz, Chemnitz, 09107, Germany
  • Department Chemie,
    Professur für Makromolekulare Chemie, Technische Universität
    Dresden, Dresden, 01069, Germany
autor
  • Department Chemie,
    Professur für Makromolekulare Chemie, Technische Universität
    Dresden, Dresden, 01069, Germany
  • Center for Advancing Electronics Dresden (cfaed),
    Technische Universität Chemnitz, Chemnitz, 09107, Germany
  • Department Chemie,
    Professur für Makromolekulare Chemie, Technische Universität
    Dresden, Dresden, 01069, Germany
  • Center for Advancing Electronics Dresden (cfaed),
    Technische Universität Chemnitz, Chemnitz, 09107, Germany
  • Semiconductor
    Physics, Technische Universität Chemnitz, Chemnitz, 09107, Germany
  • Center for Advancing Electronics Dresden (cfaed),
    Technische Universität Chemnitz, Chemnitz, 09107, Germany
Bibliografia
  • [1] Schmid, T., et al., Nanoscale Chemical Imaging UsingTip-Enhanced Raman Spectroscopy: A Critical Review.Angewandte Chemie-International Edition, 2013. 52(23): p.5940-5954.[WoS][Crossref]
  • [2] Martina, I., et al., Micro-Raman investigations of early stagesilver corrosion products occurring in sulfur containingatmospheres. Journal of Raman Spectroscopy, 2013. 44(5): p.770-775.[Crossref][WoS]
  • [3] Jorio, A., et al., Raman spectroscopy in graphene relatedsystems. 2010: John Wiley & Sons.
  • [4] Barrios, C.A., et al., Highly Stable, Protected PlasmonicNanostructures for Tip Enhanced Raman Spectroscopy. Journalof Physical Chemistry C, 2009. 113(19): p. 8158-8161.[Crossref][WoS]
  • [5] Bennett, H.E., et al., Formation and growth of tarnish onevaporated silver films. Journal of Applied Physics, 1969. 40(8):p. 3351-&.[Crossref]
  • [6] Rodriguez, R.D., et al., Compact metal probes: A solutionfor atomic force microscopy based tip-enhanced Ramanspectroscopy. Review of Scientific Instruments, 2012. 83(12).[Crossref][WoS]
  • [7] Bortchagovsky, E., T. Schmid, and R. Zenobi, Internal standardfor tip-enhanced Raman spectroscopy. Applied Physics Letters,2013. 103(4).[Crossref][WoS]
  • [8] Schmid, T., et al., Performing tip-enhanced Ramanspectroscopy in liquids. Journal of Raman Spectroscopy, 2009.40(10): p. 1392-1399.[Crossref][WoS]
  • [9] Ulman, A., et al., Self-assembled monolayers of rigid thiols.Journal of biotechnology, 2000. 74(3): p. 175-88.
  • [10] Kang, J.F., et al., Self-assembled rigid monolayers of 4‘-substituted-4-mercaptobiphenyls on gold and silver surfaces.Langmuir, 2001. 17(1): p. 95-106.[Crossref]
  • [11] Kang, J.F., et al. Wetting and Fourier transform infraredspectroscopy studies of mixed self-assembled monolayers of4 ‘-methyl-4-mercaptobiphenyl and 4 ‘-hydroxy-4-mercaptobiphenyl.Langmuir, 1998. 14(15): p. 3983-3985.[Crossref]
  • [12] Yee, C.K., et al., Novel One-Phase Synthesis of Thiol-FunctionalizedGold, Palladium, and Iridium Nanoparticles UsingSuperhydride. Langmuir, 1999. 15(10): p. 3486-3491.[Crossref]
  • [13] Kudelski, A., Some aspects of SERS temporal fluctuations:analysis of the most intense spectra of hydrogenatedamorphous carbon deposited on silver. Journal of RamanSpectroscopy, 2007. 38(11): p. 1494-1499.[WoS][Crossref]
  • [14] Socrates, G., Infrared and Raman characteristic groupfrequencies: tables and charts. Vol. 245. 2001: WileyChichester.
  • [15] McMahon, M., et al., Rapid tarnishing of silver nanoparticlesin ambient laboratory air. Applied Physics B, 2005. 80(7): p.915-921.[Crossref]
  • [16] Richards, D., et al., Tip-enhanced Raman microscopy: practicalitiesand limitations. Journal of Raman Spectroscopy, 2003.34(9): p. 663-667.[Crossref][WoS]
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_nansp-2014-0002
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