GAO, Zhenghong; OUDJEDI, Laura; FAES, Romain; MOROTÉ, Fabien; JAILLET, Christèle; POULIN, Philippe; LOUNIS, Brahim; COGNET, Laurent

doi:10.1038/srep17093

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GAO, Zhenghong
Laboratoire Photonique, Numérique et Nanosciences [LP2N]

OUDJEDI, Laura
Laboratoire Photonique, Numérique et Nanosciences [LP2N]

FAES, Romain
Centre de Recherche Paul Pascal [CRPP]

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Article de revue

Ce document a été publié dans

Scientific Reports. 2015-11-25, vol. 5, p. 17093 (1-10)

Nature Publishing Group

Résumé en anglais

Ultrashort single-walled carbon nanotubes, i.e. with length below ~30 nm, display length-dependent physical, chemical and biological properties that are attractive for the development of novel nanodevices and nanomaterials. Whether fundamental or applicative, such developments require that ultrashort nanotube lengths can be routinely and reliably characterized with high statistical data for high-quality sample production. However, no methods currently fulfill these requirements. Here, we demonstrate that photothermal microscopy achieves fast and reliable optical single nanotube analysis down to ~10 nm lengths. Compared to atomic force microscopy, this method provides ultrashort nanotubes length distribution with high statistics, and neither requires specific sample preparation nor tip-dependent image analysis. Ultrashort single-walled carbon nanotubes (usCNTs) hold unique physical, chemical and biological properties that can be used for applications in diverse areas. In condensed matter physics, both theory and experiments have shown that the nanotube electronic band-gap increases as their length shortens down to tens of nanometers in response to quantum confinement effect along the length axis< Réduire

URI

https://oskar-bordeaux.fr/handle/20.500.12278/181968

DOI

http://dx.doi.org/10.1038/srep17093

Project ANR

Nanotubes de carbone ultra-courts : des nano-marqueurs proche-infrarouges pour le suivi de biomolécules dans des tissus vivants du cerveau. - ANR-10-BLAN-1527
Outils pour la quantification tissulaire par imagerie: Histopathologie à haut contenu de tissus humains et artificiels - ANR-11-RPIB-0004
Développment d'une infrastructure française distribuée coordonnée
Initiative d'excellence de l'Université de Bordeaux - ANR-10-IDEX-0003

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Importé de hal

Unités de recherche

Laboratoire Photonique, Numérique et Nanosciences (LP2N) - UMR 5298