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Multiscale dispersion-state characterization of nanocomposites using optical coherence tomography

Schneider, Simon 1; Eppler, Florian 1,2; Weber, Marco 1; Olowojoba, Ganiu; Weiss, Patrick; Hübner, Christof; Mikonsaari, Irma; Freude, Wolfgang 1,3; Koos, Christian 1,3
1 Institut für Photonik und Quantenelektronik (IPQ), Karlsruher Institut für Technologie (KIT)
2 Institut für Produktentwicklung (IPEK), Karlsruher Institut für Technologie (KIT)
3 Institut für Mikrostrukturtechnik (IMT), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

Nanocomposite materials represent a success story of nanotechnology. However, development of nanomaterial fabrication still suffers from the lack of adequate analysis tools. In particular, achieving and maintaining well-dispersed particle distributions is a key challenge, both in material development and industrial production. Conventional methods like optical or electron microscopy need laborious, costly sample preparation and do not permit fast extraction of nanoscale structural information from statistically relevant sample volumes. Here we show that optical coherence tomography (OCT) represents a versatile tool for nanomaterial characterization, both in a laboratory and in a production environment. The technique does not require sample preparation and is applicable to a wide range of solid and liquid material systems. Large particle agglomerates can be directly found by OCT imaging, whereas dispersed nanoparticles are detected by model-based analysis of depth-dependent backscattering. Using a model system of polystyrene nanoparticles, we demonstrate nanoparticle sizing with high accuracy. We further prove the viability of the approach by characterizing highly relevant material systems based on nanoclays or carbon nanotubes. ... mehr


Volltext §
DOI: 10.5445/IR/1000059991
Originalveröffentlichung
DOI: 10.1038/srep31733
Scopus
Zitationen: 13
Web of Science
Zitationen: 6
Dimensions
Zitationen: 12
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Mikrostrukturtechnik (IMT)
Institut für Photonik und Quantenelektronik (IPQ)
Institut für Produktentwicklung (IPEK)
Universität Karlsruhe (TH) – Interfakultative Einrichtungen (Interfakultative Einrichtungen)
Karlsruhe School of Optics & Photonics (KSOP)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2016
Sprache Englisch
Identifikator ISSN: 2045-2322
urn:nbn:de:swb:90-599918
KITopen-ID: 1000059991
HGF-Programm 43.23.03 (POF III, LK 01) Teratronics
Erschienen in Scientific reports
Verlag Nature Research
Band 6
Seiten Art.Nr.:31733
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Schlagwörter Imaging and sensing; Nanoparticles; Optical metrology
Nachgewiesen in Web of Science
Dimensions
Scopus
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