Structural and electronic properties of grain boundaries in graphite : planes of periodically distributed point defects
By Jiri Cervenka, C. Flipse. 2008
132 citations recorded by the source corpus.
We report on scanning tunneling microscopy and spectroscopy of grain boundaries in highly oriented pyrolytic graphite. Grain boundaries showed a periodic structure and an enhanced charge density compared to the bare graphite surface. Two possible periodic structures have been observed along grain boundaries. A geometrical model producing periodically distributed point defects on the basal plane of graphite has been proposed to explain the structure of grain boundaries. Scanning tunneling spectroscopy on grain boundaries revealed two strong localized states at $\ensuremath{-}0.3$ and 0.4 V which extended up to a 4 nm distance from grain boundaries.
Subfields: Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/dcc82a0972626024488a37ad659742496228271f
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In Materials Chemistry
Citations in the corpus
- Room-temperature ferromagnetism in graphite driven by two-dimensional networks of point defects (2009, methodology): “A detailed AFM and scanning tunnelling microscopy (STM) study of these lines can be found elsewher”
- Structure, energy, and structural transformations of graphene grain boundaries from atomistic simulations (2011, background): “Periodic arrays of protrusions, having heights of several angstroms, have been observed near the grain boundary regions [11,13,15].”
- Structural analysis of polycrystalline graphene systems by Raman spectroscopy (2015, background): “The structural determination of the average grain boundaries width obtained here (ℓB = 2ℓS ≈ 2.8 nm) is in very good agreement with the width of the crystallite borders obtained by STM [16].”