Alkylthiol self-assembled monolayers on Au(111) with tailored tail groups for attaching gold nanoparticles - Sorbonne Université Accéder directement au contenu
Article Dans Une Revue Nanotechnology Année : 2017

Alkylthiol self-assembled monolayers on Au(111) with tailored tail groups for attaching gold nanoparticles

Résumé

Self-Assembled Monolayers (SAM) on Au(111) are able to control the functionality of a gold surface. We use scanning tunnelling microscopy (STM) in air and contact angle measurements to compare the morphology and the chemistry of three alkylthiol SAMs differing by their tail groups: 1,9-nonanedithiol (NDT) and 1,4-butanedithiol (BDT) and 11-mercaptoundecanol (MUOH). STM reveals very different morphologies: hexagonal lattice for MUOH and parallel rows for NDT and BDT. In the case of NDT, we find that the thiol tail groups may form disulfide bridges for long immersion times. The availability of –SH group for chemical reactions is checked by attaching gold nanoparticles (AuNPs). When the thiol tail group is available, AuNPs readily attach as shown with atomic force microscopy (AFM). When disulfide bridges are formed the gold surface is not able to bind nanoparticles.
Fichier principal
Vignette du fichier
Kutsenko_2017_Alkylthiol.pdf (745.83 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01534253 , version 1 (07-06-2017)

Identifiants

Citer

V y Kutsenko, L Lopatina, Léo Bossard-Giannesini, O Marchenko, Olivier Pluchery, et al.. Alkylthiol self-assembled monolayers on Au(111) with tailored tail groups for attaching gold nanoparticles. Nanotechnology, 2017, 28 (23), pp.235603 ⟨10.1088/1361-6528/aa6e3d⟩. ⟨hal-01534253⟩
236 Consultations
864 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More