Is adsorbed water responsible for 2800-3000 cm−1 band in Raman spectrum of inorganic matter?

In papers devoted to Raman spectra of SiO2-(H2O)x gel, stishovite, silver surface and gold particles on copper surface the band at 2800 - 3000 cm−1 was attributed to adsorbed water in spite of the essential shift of this band relatively to conventional water band at ∼3500 cm−1. This interpretation i...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. Conference series 2019-06, Vol.1236 (1), p.12001
Main Authors: Redkov, A, Melehin, V, Zhurikhina, V
Format: Article
Language:English
Subjects:
Fingerprints
Organic compounds
Physics
Raman spectra
Silicon dioxide
Silver
Stishovite
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In papers devoted to Raman spectra of SiO2-(H2O)x gel, stishovite, silver surface and gold particles on copper surface the band at 2800 - 3000 cm−1 was attributed to adsorbed water in spite of the essential shift of this band relatively to conventional water band at ∼3500 cm−1. This interpretation is controversial and it needs to be discussed. Measurements of Raman spectra of a glass slide with a fingerprint allowed another interpretation of this band because deposition of the fingerprint on the slide surface resulted in appearance of 2800 - 3000 cm−1 Raman band, and Raman mapping of the slide surface reproduced a microphotograph of the fingerprint. This allows relating of this band to traces of organic compounds at the surface of the studied samples.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1236/1/012001