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Graphene unit cell imaging by holographic coherent diffraction.

Authors
  • Longchamp, Jean-Nicolas
  • Latychevskaia, Tatiana
  • Escher, Conrad
  • Fink, Hans-Werner
Type
Published Article
Journal
Physical Review Letters
Publisher
American Physical Society
Publication Date
Jun 21, 2013
Volume
110
Issue
25
Pages
255501–255501
Identifiers
PMID: 23829743
Source
Medline
License
Unknown

Abstract

We have imaged a freestanding graphene sheet of 210 nm in diameter with 2 Å resolution by combining coherent diffraction and holography with low-energy electrons. The entire sheet is reconstructed from a single diffraction pattern displaying the arrangement of 660.000 individual graphene unit cells at once. Given the fact that electrons with kinetic energies of the order of 100 eV do not damage biological molecules, it will now be a matter of developing methods for depositing individual proteins onto such graphene sheets.

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