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Author

Lee, Zonghoon
Atomic-Scale Electron Microscopy (ASEM) Lab
Research Interests
  • Advanced Transmission Electron Microscopy (TEM/STEM), in Situ TEM, graphene, 2D materials, low-dimensional crystals, nanostructured materials

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Direct Imaging of Soft-Hard Interfaces Enabled by Graphene

Cited 61 times inthomson ciCited 57 times inthomson ci
Title
Direct Imaging of Soft-Hard Interfaces Enabled by Graphene
Author
Lee, ZonghoonJeon, Ki-JoonDato, AlbertErni, RolfRichardson, Thomas J.Frenklach, MichaelRadmilovic, Velimir
Keywords
Atomic layer; Atomic-resolution; Atomic-resolution imaging; Capping layer; Carbon atoms; Direct imaging; Functionalized nanoparticles; Gold Nanoparticles; Graphenes; Hard material; Microscopy technique; Molecular layer; Soft nanomaterials; Soft-hard interface; Surface molecules; Ultra-thin
Issue Date
200909
Publisher
AMER CHEMICAL SOC
Citation
NANO LETTERS, v.9, no.9, pp.3365 - 3369
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 sp 2-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.
URI
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DOI
http://dx.doi.org/10.1021/nl901664k
ISSN
1530-6984
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