Magnetic Gold Confined in Ordered Mesoporous Titania Thin Films: A Noble Approach for Magnetic Devices - Sorbonne Université Accéder directement au contenu
Article Dans Une Revue ACS Applied Materials & Interfaces Année : 2017

Magnetic Gold Confined in Ordered Mesoporous Titania Thin Films: A Noble Approach for Magnetic Devices

Résumé

In the past decade, the surprising magnetic behavior of gold nanoparticles has been reported. This unexpected property is mainly attributed both to size and surface effects. Mesoporous thin films are ideal matrices for metallic nanoparticles inclusion, because of their highly accessible and tailorable pore systems that lead to completely tunable chemical environments. Exploiting these features, we synthesized Au nanoparticles within mesoporous titania thin films (film thickness of ∼150 nm and pore diameter of ∼5 nm), and we studied their magnetic properties under confinement. Here, we present the results of the magnetization as a function of temperature and magnetic field for this system, which are consistent with the previously reported for free (unconfined) thiol-capped gold nanoparticles. The successful inclusion of stable magnetic Au nanoparticles within transparent mesoporous thin films opens the gates for the application of these nanocomposites in two-dimensional (2D) microdevices technology and magneto-optical devices.
Fichier principal
Vignette du fichier
Granja_2016_Magnetic_Gold.pdf (666.98 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01445065 , version 1 (24-01-2017)

Identifiants

Citer

Leticia P. Granja, Eduardo D. Martínez, Horacio Troiani, Clément Sanchez, Galo J. A. A. Soler Illia. Magnetic Gold Confined in Ordered Mesoporous Titania Thin Films: A Noble Approach for Magnetic Devices. ACS Applied Materials & Interfaces, 2017, 9 (1), pp.965 - 971. ⟨10.1021/acsami.6b15189⟩. ⟨hal-01445065⟩
76 Consultations
218 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More