Direct Imagining of Soft-hard Interfaces Enabled by Graphene

Direct Imagining of Soft-hard Interfaces Enabled by Graphene

TitleDirect Imagining of Soft-hard Interfaces Enabled by Graphene
Publication TypeJournal Article
Year of Publication2009
AuthorsZonghoon Lee, Ki-Joon Jeon, Albert Dato, Rolf Erni, Thomas J Richardson, Michael Frenklach, Velimir Radmilovic
JournalNanoLetters
Volume9
3365
Issue9
Pagination3365-3369
Date Published09/2009
Abstract

Direct imaging of surface molecules and the interfaces between soft and hard materials on functionalized nanoparticles is a great challenge using modern microscopy techniques. We show that graphene, a single atomic layer of sp2-bonded carbon atoms, can be employed as an ultrathin support film that enables direct imaging of molecular layers and interfaces in both conventional and atomic-resolution transmission electron microscopy. An atomic-resolution imaging study of the capping layers and interfaces of citrate-stabilized gold nanoparticles is used to demonstrate this novel capability. Our findings reveal the unique potential of graphene as an ideal support film for atomic-resolution transmission electron microscopy of hard and soft nanomaterials.

DOI10.1021/nl901664k
Short TitleNano Lett.