Nanoscale chemical imaging of solid-liquid interfaces using tip-enhanced Raman spectroscopy
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F18%3A43917731" target="_blank" >RIV/60461373:22310/18:43917731 - isvavai.cz</a>
Result on the web
<a href="https://pubs.rsc.org/en/Content/ArticleLanding/2018/NR/C7NR08257F#!divAbstract" target="_blank" >https://pubs.rsc.org/en/Content/ArticleLanding/2018/NR/C7NR08257F#!divAbstract</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/c7nr08257f" target="_blank" >10.1039/c7nr08257f</a>
Alternative languages
Result language
angličtina
Original language name
Nanoscale chemical imaging of solid-liquid interfaces using tip-enhanced Raman spectroscopy
Original language description
Tip-enhanced Raman spectroscopy (TERS) is a powerful tool for non-destructive and label-free surface molecular mapping at the nanoscale. However, to date nanoscale resolution chemical imaging in a liquid environment has not been possible, in part due to the lack of robust TERS probes that are stable when immersed in a liquid. In this work, we have addressed this challenge by developing plasmonically-active TERS probes with a multilayer metal coating structure that can be successfully used within a liquid environment. Using these novel TERS probes, we have compared the plasmonic enhancement of TERS signals in air and water environments for both gap mode and non-gap mode configurations and show that in both cases the plasmonic enhancement decreases in water. To better understand the signal attenuation in water, we have performed numerical simulations that revealed a negative correlation between the electric field enhancement at the TERS probe-apex and the refractive index of the surrounding medium. Finally, using these robust probes we demonstrate TERS imaging with nanoscale spatial resolution in a water environment for the first time by employing single-wall carbon nanotubes as a model sample. Our findings are expected to broaden the scope of TERS to a range of scientific disciplines in which nanostructured solid–liquid interfaces play a key role
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Nanoscale
ISSN
2040-3364
e-ISSN
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Volume of the periodical
10
Issue of the periodical within the volume
4
Country of publishing house
GB - UNITED KINGDOM
Number of pages
10
Pages from-to
1815-1824
UT code for WoS article
000423355300030
EID of the result in the Scopus database
2-s2.0-85041239220