Tip-enhanced Raman spectroscopy

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Author(s) Blum, Carolin, et al., Opilik, Lothar, Li, Jian-Feng, Stephanidis, Bruno, Wang, Xiang, Zenobi, Renato
Publication Type Journal Items, Publication Status: Published
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Title Tip-enhanced Raman spectroscopy
Subtitle An interlaboratory reproducibility and comparison study
Author(s) Blum, Carolin
et al.
Opilik, Lothar
Li, Jian-Feng
Stephanidis, Bruno
Wang, Xiang
Zenobi, Renato
Journal or Series Title Journal of Raman spectroscopy
Volume Number 45
Issue Number 1
Start Page 22
End Page 31
ISSN 0377-0486
Publisher Wiley
Publication Place Chichester
Publication Date 2014-01
Keyword(s) Tip-enhanced Raman spectroscopy
Interlaboratory comparison study
Thiophenol self-assembled monolayer
Spectra interpretation
Abstract Since its first experimental realization, tip-enhanced Raman spectroscopy (TERS) has emerged as a potentially powerful nanochemical analysis tool. However, questions about the comparability and reproducibility of TERS data have emerged. This interlaboratory comparison study addresses these issues by bringing together different TERS groups to perform TERS measurements on nominally identical samples. Based on the spectra obtained, the absolute and relative peak positions, number of bands, peak intensity ratios, and comparability to reference Raman and surface-enhanced Raman spectroscopy (SERS) data are discussed. Our general findings are that all research groups obtained similar spectral patterns, irrespective of the setup or tip that was used. The TERS (and SERS) spectra consistently showed fewer bands than the conventional Raman spectrum. When comparing these three methods, the spectral pattern match and substance identification is readily possible. Absolute and relative peak positions of the three major signals of thiophenol scattered by 19 and 9cm-1, respectively, which can probably be attributed to different spectrometer calibrations. However, within the same group (but between different tips), the signals only scattered by 3cm-1 on average. This study demonstrated the suitability of TERS as an analytical tool and brings TERS a big step forward to becoming a routine technique.
DOI 10.1002/jrs.4423
Additional Notes Received 18 August 2013, Revised 1 November 2013, Accepted 6 November 2013, Published online 9 January 2014
Document Type Article
Publication Status Published
Language English
Assigned Organisational Unit(s) 03430
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NEBIS System Number 000027994
Source Database ID SCOPUS-84892527178
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  author = "Blum, Carolin and et al. and Opilik, Lothar and Li, Jian-Feng and Stephanidis, Bruno and Wang, Xiang and Zenobi, Renato",
  title = "{T}ip-enhanced {R}aman spectroscopy: {A}n interlaboratory reproducibility and comparison study",
  journal = "Journal of Raman spectroscopy",
  year = 2014,
  volume = "45",
  number = "1",
  pages = "22--31",
  month = jan,

E-Citations record created: Tue, 04 Feb 2014, 08:39:42 CET