Surface-Enhanced Raman Spectroscopy of Carbon Nanomembranes from Aromatic Self-Assembled Monolayers

Zhang X, Mainka M, Paneff F, Hachmeister H, Beyer A, Gölzhäuser A, Huser T (2018)
LANGMUIR 34(8): 2692-2698.

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
Abstract / Bemerkung
Surface-enhanced Raman scattering spectroscopy (SERS) was employed to investigate the formation of self assembled monolayers (SAMs) of biphenylthiol, 4'-nitro-1,1'-biphenyl-4-thiol, and p-terphenylthiol on Au surfaces and their structural transformations into carbon nanomembranes (CNMs) induced by electron irradiation. The high sensitivity of SERS allows us to identify two types of Raman scattering in electron-irradiated SAMs: (1) Raman-active sites exhibit similar bands as those of pristine SAMs in the fingerprint spectral region, but with indications of an amorphization process and (2) Raman inactive sites show almost no Raman-scattering signals, except a very weak and broad D band, indicating a lack of structural order but for the presence of graphitic domains. Statistical analysis showed that the ratio of the number of Raman-active sites to the total number of measurement sites decreases exponentially with increasing the electron irradiation dose. The maximum degree of cross-linking ranged from 97 to 99% for the three SAMs. Proof-of-concept experiments were conducted to demonstrate potential applications of Raman-inactive CNMs as a supporting membrane for Raman analysis.
Erscheinungsjahr
Zeitschriftentitel
LANGMUIR
Band
34
Ausgabe
8
Seite(n)
2692-2698
ISSN
PUB-ID

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Zhang X, Mainka M, Paneff F, et al. Surface-Enhanced Raman Spectroscopy of Carbon Nanomembranes from Aromatic Self-Assembled Monolayers. LANGMUIR. 2018;34(8):2692-2698.
Zhang, X., Mainka, M., Paneff, F., Hachmeister, H., Beyer, A., Gölzhäuser, A., & Huser, T. (2018). Surface-Enhanced Raman Spectroscopy of Carbon Nanomembranes from Aromatic Self-Assembled Monolayers. LANGMUIR, 34(8), 2692-2698. doi:10.1021/acs.langmuir.7b03956
Zhang, X., Mainka, M., Paneff, F., Hachmeister, H., Beyer, A., Gölzhäuser, A., and Huser, T. (2018). Surface-Enhanced Raman Spectroscopy of Carbon Nanomembranes from Aromatic Self-Assembled Monolayers. LANGMUIR 34, 2692-2698.
Zhang, X., et al., 2018. Surface-Enhanced Raman Spectroscopy of Carbon Nanomembranes from Aromatic Self-Assembled Monolayers. LANGMUIR, 34(8), p 2692-2698.
X. Zhang, et al., “Surface-Enhanced Raman Spectroscopy of Carbon Nanomembranes from Aromatic Self-Assembled Monolayers”, LANGMUIR, vol. 34, 2018, pp. 2692-2698.
Zhang, X., Mainka, M., Paneff, F., Hachmeister, H., Beyer, A., Gölzhäuser, A., Huser, T.: Surface-Enhanced Raman Spectroscopy of Carbon Nanomembranes from Aromatic Self-Assembled Monolayers. LANGMUIR. 34, 2692-2698 (2018).
Zhang, Xinaghui, Mainka, Marcel, Paneff, Florian, Hachmeister, Henning, Beyer, André, Gölzhäuser, Armin, and Huser, Thomas. “Surface-Enhanced Raman Spectroscopy of Carbon Nanomembranes from Aromatic Self-Assembled Monolayers”. LANGMUIR 34.8 (2018): 2692-2698.

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