Simple cleaning and regeneration of tip‐enhanced Raman spectroscopy probe with UV sources

Tip‐enhanced Raman spectroscopy (TERS) is a powerful nano‐optical approach that allows the extraction of nanometer resolved chemical information. The key to a successful TERS measurement is the quality of the TERS tip. However, tip contamination, which usually occurs during measurements on samples t...

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Veröffentlicht in:Journal of Raman spectroscopy 2022-12, Vol.53 (12), p.2023-2030
Hauptverfasser: Zhang, Kaifeng, Taniguchi, Shin‐ichi, Saeki, Tomonori, Bao, Yifan, Cao, Maofeng, Watanabe, Masahiro, Wang, Xiang, Kobayashi, Kei, Ren, Bin, Yamada, Hirofumi
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container_end_page 2030
container_issue 12
container_start_page 2023
container_title Journal of Raman spectroscopy
container_volume 53
creator Zhang, Kaifeng
Taniguchi, Shin‐ichi
Saeki, Tomonori
Bao, Yifan
Cao, Maofeng
Watanabe, Masahiro
Wang, Xiang
Kobayashi, Kei
Ren, Bin
Yamada, Hirofumi
description Tip‐enhanced Raman spectroscopy (TERS) is a powerful nano‐optical approach that allows the extraction of nanometer resolved chemical information. The key to a successful TERS measurement is the quality of the TERS tip. However, tip contamination, which usually occurs during measurements on samples that include organic molecules or after long‐term storage, remains a critical problem for TERS experiments. It not only affects the reliability of TERS results but also hinders the long‐term development of the TERS technique. Herein, we propose a method that enables the regeneration of contaminated TERS tips. For this purpose, we prepared a TERS tip contaminated by stable organic molecules, which was subjected to a simple and rapid ultraviolet (UV) cleaning procedure to remove the contaminants and to regenerate the tip. This method is demonstrated to be effective in removing the contaminants from the TERS tip by directly breaking the bonds in the contaminated molecules and oxidizing organic compounds with the generated reactive oxygen atom. This simple method could propel the development of the TERS technique. A simple method for cleaning and regenerating TERS tips with UV light irradiation.
doi_str_mv 10.1002/jrs.6440
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The key to a successful TERS measurement is the quality of the TERS tip. However, tip contamination, which usually occurs during measurements on samples that include organic molecules or after long‐term storage, remains a critical problem for TERS experiments. It not only affects the reliability of TERS results but also hinders the long‐term development of the TERS technique. Herein, we propose a method that enables the regeneration of contaminated TERS tips. For this purpose, we prepared a TERS tip contaminated by stable organic molecules, which was subjected to a simple and rapid ultraviolet (UV) cleaning procedure to remove the contaminants and to regenerate the tip. This method is demonstrated to be effective in removing the contaminants from the TERS tip by directly breaking the bonds in the contaminated molecules and oxidizing organic compounds with the generated reactive oxygen atom. This simple method could propel the development of the TERS technique. 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source Wiley Online Library Journals Frontfile Complete
subjects atomic force microscope (AFM)
Chemical bonds
Cleaning
Contaminants
Contamination
Organic chemistry
Organic compounds
Oxidation
Pollutant removal
Raman spectroscopy
Regeneration
Spectroscopy
Spectrum analysis
thin‐film waveguide probe
tip regeneration
tip‐enhanced Raman spectroscopy (TERS)
UV cleaning
title Simple cleaning and regeneration of tip‐enhanced Raman spectroscopy probe with UV sources
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