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Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-27790
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dc.contributor.authorMirabello, Giulia-
dc.contributor.authorSteinmetz, Lukas-
dc.contributor.authorGeers, Christoph-
dc.contributor.authorRothen-Rutishauser, Barbara-
dc.contributor.authorBonmarin, Mathias-
dc.contributor.authorFink, Alke Susanne-
dc.contributor.authorLattuada, Marco-
dc.date.accessioned2023-05-05T13:07:04Z-
dc.date.available2023-05-05T13:07:04Z-
dc.date.issued2023-
dc.identifier.issn2516-0230de_CH
dc.identifier.urihttps://digitalcollection.zhaw.ch/handle/11475/27790-
dc.description.abstractThin nanocomposite polymer films embedding various types of nanoparticles have been the target of abundant research to use them as sensors, smart coatings, or artificial skin. Their characterization is challenging and requires novel methods that can provide qualitative as well as quantitative information about their composition and the spatial distribution of nanoparticles. In this work, we show how Lock-In Thermography (LIT) can be used to quantify the concentration of gold nanoparticles embedded in polyvinyl alcohol (PVA) films. LIT is an emerging and non-destructive technique that measures the thermal signature produced by an absorbing sample illuminated by modulated light with defined frequency. Films with various concentrations of gold nanoparticles of two different sizes have been prepared by evaporation from homogenous aqueous PVAgold nanoparticles suspensions. When the thin films were illuminated with monochromatic light at a wavelength close to the plasmonic resonance signature of the nanoparticles, the amplitude of the thermal signature emitted by the nanoparticles was recorded. The measurements have been repeated for multiple modulation frequencies of the incident radiation. We have developed a mathematical method to quantitatively relate the concentration of nanoparticles to the measured amplitude. A discussion about the conditions under which the sample thickness can be determined is provided. Furthermore, our results show how LIT measurements can easily detect the presence of concentration gradients in samples, and how the model allows to relate the measured signal to the respective concentrations. This work demonstrates the successful use of LIT as a reliable and non-destructive method to quantify nanoparticles concentrations.de_CH
dc.language.isoende_CH
dc.publisherRoyal Society of Chemistryde_CH
dc.relation.ispartofNanoscale Advancesde_CH
dc.rightshttp://creativecommons.org/licenses/by/3.0/de_CH
dc.subjectNanoparticlede_CH
dc.subjectPolymer filmde_CH
dc.subjectMeasurementde_CH
dc.subjectLock-In Thermography (LIT)de_CH
dc.subject.ddc620: Ingenieurwesende_CH
dc.titleQuantification of nanoparticles’ concentration inside polymer films using Lock-In Thermographyde_CH
dc.typeBeitrag in wissenschaftlicher Zeitschriftde_CH
dcterms.typeTextde_CH
zhaw.departementSchool of Engineeringde_CH
zhaw.organisationalunitInstitute of Computational Physics (ICP)de_CH
dc.identifier.doi10.1039/D3NA00091Ede_CH
dc.identifier.doi10.21256/zhaw-27790-
zhaw.funding.euNode_CH
zhaw.issue11de_CH
zhaw.originated.zhawYesde_CH
zhaw.pages.end2972de_CH
zhaw.pages.start2963de_CH
zhaw.publication.statuspublishedVersionde_CH
zhaw.volume5de_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
zhaw.funding.snf184635de_CH
zhaw.webfeedSensors and Measuring Systemsde_CH
zhaw.author.additionalNode_CH
zhaw.display.portraitYesde_CH
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Mirabello, G., Steinmetz, L., Geers, C., Rothen-Rutishauser, B., Bonmarin, M., Fink, A. S., & Lattuada, M. (2023). Quantification of nanoparticles’ concentration inside polymer films using Lock-In Thermography. Nanoscale Advances, 5(11), 2963–2972. https://doi.org/10.1039/D3NA00091E
Mirabello, G. et al. (2023) ‘Quantification of nanoparticles’ concentration inside polymer films using Lock-In Thermography’, Nanoscale Advances, 5(11), pp. 2963–2972. Available at: https://doi.org/10.1039/D3NA00091E.
G. Mirabello et al., “Quantification of nanoparticles’ concentration inside polymer films using Lock-In Thermography,” Nanoscale Advances, vol. 5, no. 11, pp. 2963–2972, 2023, doi: 10.1039/D3NA00091E.
MIRABELLO, Giulia, Lukas STEINMETZ, Christoph GEERS, Barbara ROTHEN-RUTISHAUSER, Mathias BONMARIN, Alke Susanne FINK und Marco LATTUADA, 2023. Quantification of nanoparticles’ concentration inside polymer films using Lock-In Thermography. Nanoscale Advances. 2023. Bd. 5, Nr. 11, S. 2963–2972. DOI 10.1039/D3NA00091E
Mirabello, Giulia, Lukas Steinmetz, Christoph Geers, Barbara Rothen-Rutishauser, Mathias Bonmarin, Alke Susanne Fink, and Marco Lattuada. 2023. “Quantification of Nanoparticles’ Concentration inside Polymer Films Using Lock-in Thermography.” Nanoscale Advances 5 (11): 2963–72. https://doi.org/10.1039/D3NA00091E.
Mirabello, Giulia, et al. “Quantification of Nanoparticles’ Concentration inside Polymer Films Using Lock-in Thermography.” Nanoscale Advances, vol. 5, no. 11, 2023, pp. 2963–72, https://doi.org/10.1039/D3NA00091E.


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