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2014 | 1 | 1 |
Article title

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

Content
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Languages of publication
EN
Abstracts
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.
Publisher
Year
Volume
1
Issue
1
Physical description
Dates
received
23 - 6 - 2014
accepted
3 - 11 - 2014
online
9 - 1 - 2015
References
  • [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]
Document Type
Publication order reference
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_nansp-2014-0002
Identifiers
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