Orientational Order of Carbon Nanotube Guests in a Nematic Host Suspension of Colloidal Viral Rods - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Physical Review Letters Année : 2012

Orientational Order of Carbon Nanotube Guests in a Nematic Host Suspension of Colloidal Viral Rods

Résumé

In order to investigate the coupling between the degrees of alignment of elongated particles in binary nematic dispersions, surfactant stabilized single-wall carbon nanotubes (CNTs) have been added to nematic suspensions of colloidal rodlike viruses in aqueous solution.We have independently measured the orientational order parameter of both components of the guest-host system by means of polarized Raman spectroscopy and by optical birefringence, respectively. Our system allows us therefore to probe the regime where the guest particles (CNTs) are shorter and thinner than the fd virus host particles. We show that the degree of order of the CNTs is systematically smaller than that of the fd virus particles for the whole nematic range. These measurements are in good agreement with predictions of an Onsager-type second-viral theory, which explicitly includes the flexibility of the virus particles, and the polydispersity of the CNTs.
Fichier principal
Vignette du fichier
1306.5398.pdf (172.84 Ko) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-00709314 , version 1 (04-06-2021)

Licence

Paternité

Identifiants

Citer

Nicolas Puech, Matthew Dennison, Christophe Blanc, Paul van Der Schoot, Marjolein Dijkstra, et al.. Orientational Order of Carbon Nanotube Guests in a Nematic Host Suspension of Colloidal Viral Rods. Physical Review Letters, 2012, 108, pp.247801. ⟨10.1103/PhysRevLett.108.247801⟩. ⟨hal-00709314⟩
74 Consultations
44 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More