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Ag Nanorod Arrays for SERS: Aspects of Spectral Reproducibility, Surface Contamination, and Spectral Sensitivity
Joint Authors
Procházka, M.
Šubr, Martin
Petr, Martin
Peksa, Vlastimil
Kylián, Ondřej
Hanuš, Jan
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-02-28
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Ag nanorod arrays prepared by oblique angle vapor deposition (OAD) represent regular, large area substrates for surface-enhanced Raman scattering (SERS) spectroscopy.
We studied uniformity and spectral reproducibility of silver OAD-fabricated substrates (AgOADs) by spectral mapping of methylene blue.
The results demonstrate good reproducibility apart from occasional “hot-spot” sites where the intensity is higher.
The number of “hot-spots” represents 2%–6% of SERS-active sites of mapping substrate area.
We were able to obtain good SERS spectra of testing amino acid tryptophan at 1 × 10−5 M concentration and three different free-base porphyrins down to ∼10−7 M concentration.
We found out that keeping the AgOADs in a vacuum chamber overnight prevents the surface from binding any contaminants from the ambient atmosphere, without significant reduction in the SERS enhancement.
Such substrates provide stable SERS enhancement even when stored for 1 year after preparation.
American Psychological Association (APA)
Šubr, Martin& Petr, Martin& Peksa, Vlastimil& Kylián, Ondřej& Hanuš, Jan& Procházka, M.. 2015. Ag Nanorod Arrays for SERS: Aspects of Spectral Reproducibility, Surface Contamination, and Spectral Sensitivity. Journal of Nanomaterials،Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1069272
Modern Language Association (MLA)
Šubr, Martin…[et al.]. Ag Nanorod Arrays for SERS: Aspects of Spectral Reproducibility, Surface Contamination, and Spectral Sensitivity. Journal of Nanomaterials No. 2015 (2015), pp.1-7.
https://search.emarefa.net/detail/BIM-1069272
American Medical Association (AMA)
Šubr, Martin& Petr, Martin& Peksa, Vlastimil& Kylián, Ondřej& Hanuš, Jan& Procházka, M.. Ag Nanorod Arrays for SERS: Aspects of Spectral Reproducibility, Surface Contamination, and Spectral Sensitivity. Journal of Nanomaterials. 2015. Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1069272
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1069272