Evading the Illusions: Identification of False Peaks in Micro-Raman Spectroscopy and Guidelines for Scientific Best Practice
| العنوان: | Evading the Illusions: Identification of False Peaks in Micro-Raman Spectroscopy and Guidelines for Scientific Best Practice |
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| المؤلفون: | Thyr, Jakob, 1979, Edvinsson, Tomas, Professor, 1970 |
| المصدر: | Angewandte Chemie International Edition. 62(43) |
| مصطلحات موضوعية: | Measurement Protocol, Raman Spectroscopy, Scientific Best Practice, Spectral Artefacts, Unintended Raman Signal |
| الوصف: | Micro-Raman spectroscopy is an important analytical tool in a large variety of science disciplines. The technique is suitable for both identification of chemical bonds and studying more detailed phenomena like molecular interactions, material strain, crystallinity, defects, and bond formations. Raman scattering has one major weakness however: it is a very low probability process. The weak signals require very sensitive detection systems, which leads to a high probability of picking up signals from origins other than the sample. This complicates the analysis of the results and increases the risk of misinterpreting data. This work provides an overview of the sources of spurious signals occurring in Raman spectra, including photoluminescence, cosmic rays, stray light, artefacts caused by spectrometer components, and signals from other compounds in or surrounding the sample. The origins of these false Raman peaks are explained and means to identify and counteract them are provided. Raman spectroscopy is a great analysis tool but the spectra are sometimes difficult to interpret due to the occurrence of spectral artefacts. This paper dives into the details of many spurious signals and spectral artefacts that occur in Raman spectra, explains their origin, and provides the tools to identify and avoid them. |
| وصف الملف: | electronic |
| URL الوصول: | https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-521084 https://doi.org/10.1002/anie.202219047 https://uu.diva-portal.org/smash/get/diva2:1829304/FULLTEXT01.pdf |
| قاعدة البيانات: | SwePub |
| تدمد: | 14337851 |
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| DOI: | 10.1002/anie.202219047 |