<div class="csl-bib-body">
<div class="csl-entry">Vieira Dias Dos Santos, A. C., Ramer, G., & Lendl, B. (2020, January 13). <i>AFM-IR-based nanoscale chemical Imaging</i> [Poster Presentation]. 21st European Symposium on Polymer Spectroscopy, Linz, Austria. http://hdl.handle.net/20.500.12708/152316</div>
</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/152316
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dc.description.abstract
Mid-infrared (IR) spectroscopy is a well established method for analysis of polymers due to its ability to provide molecular specific IR information non-destructive, quickly and with little sample preparation. However, conventional IR spectroscopy is limited to spatial resolutions of several microns, thus preventing its meaningful application to samples with nanoscale components. This is where atomic force microscopy-infrared spectroscopy (AFM-IR) comes in. In AFM-IR a pulsed IR laser is aimed at the sample area under the AFM tip. The thermal expansion is detected by the AFM cantilever in the near-field region allowing spatial resolutions below the diffraction limit and down to 20 nm. Tuning the laser wavelength while keeping the AFM tip in one location provides local infrared spectra. Scanning the AFM tip while keeping the laser wavelength constant provides infrared absorption images and AFM topography images, concurrently. Infrared bands can be assigned to vibrations of functional groups using well established spectra-structure correlations, taking advantage of the direct comparability between the AFM-IR obtained photothermal induced resonance (PTIR) spectra and their far-field FTIR counterparts. AFM-IR has successfully been applied to biological, inorganic and organic samples such as polymer films and fibres.
In this work, we demonstrate the application of AFM-IR to a polymer sample a sample consisting of a mixture of three different polymers was analyzed, the three chemically different domains. The three different polymers were identified through their AFM-IR spectra and their spatial distribution was determined at nanoscale resolution.
en
dc.description.sponsorship
FFG - Österr. Forschungsförderungs- gesellschaft mbH
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dc.language.iso
en
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dc.subject
AFM-IR
en
dc.subject
Nanoscale chemical characterization
en
dc.title
AFM-IR-based nanoscale chemical Imaging
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.relation.grantno
868615
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dc.type.category
Poster Presentation
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tuw.project.title
Chemical Systems Engineering
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tuw.researchTopic.id
M2
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tuw.researchTopic.name
Materials Characterization
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tuw.researchTopic.value
100
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tuw.publication.orgunit
E164-02-1 - Forschungsgruppe Prozessanalytik
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tuw.author.orcid
0000-0001-6342-2823
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tuw.author.orcid
0000-0001-8307-5435
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tuw.author.orcid
0000-0003-3838-5842
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tuw.event.name
21st European Symposium on Polymer Spectroscopy
en
tuw.event.startdate
13-01-2020
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tuw.event.enddate
15-01-2020
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tuw.event.online
On Site
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tuw.event.type
Event for scientific audience
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tuw.event.place
Linz
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tuw.event.country
AT
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tuw.event.presenter
Vieira Dias Dos Santos, Ana Catarina
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tuw.event.track
Single Track
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wb.sciencebranch
Chemie
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wb.sciencebranch.oefos
1040
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wb.sciencebranch.value
100
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item.languageiso639-1
en
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item.openairetype
conference poster not in proceedings
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item.grantfulltext
none
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item.fulltext
no Fulltext
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item.cerifentitytype
Publications
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item.openairecristype
http://purl.org/coar/resource_type/c_18co
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crisitem.author.dept
E164-02-1 - Forschungsgruppe Prozessanalytik
-
crisitem.author.dept
E164-02-1 - Forschungsgruppe Prozessanalytik
-
crisitem.author.dept
E164-02 - Forschungsbereich Umwelt-, Prozessanalytik und Sensoren
-
crisitem.author.orcid
0000-0001-6342-2823
-
crisitem.author.orcid
0000-0001-8307-5435
-
crisitem.author.orcid
0000-0003-3838-5842
-
crisitem.author.parentorg
E164-02 - Forschungsbereich Umwelt-, Prozessanalytik und Sensoren
-
crisitem.author.parentorg
E164-02 - Forschungsbereich Umwelt-, Prozessanalytik und Sensoren
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crisitem.author.parentorg
E164 - Institut für Chemische Technologien und Analytik
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crisitem.project.funder
FFG - Österr. Forschungsförderungs- gesellschaft mbH
