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Simultaneous observation of the triangular and honeycomb structures on highly oriented pyrolytic graphite at room temperature: An STM study
- Source :
-
Surface Science . Feb2006, Vol. 600 Issue 3, p729-734. 6p. - Publication Year :
- 2006
-
Abstract
- Abstract: Scanning tunneling microscopy (STM) was used to study the surface structures of dry-prepared and di-chloroethane-treated HOPG samples. Both triangular and honeycomb structures were simultaneously observed with the same tip at room temperature around a strand (grain boundary) on the HOPG surface. This observation did not support the tip effect in STM imaging explanation for HOPG in literature. A general layer-sliding model was utilized to explain the experimental results: sliding of the HOPG topmost layer was used to explain the origins of the triangular and honeycomb structures, and molecule intercalation into inter-layer spacing between the first and second layers of HOPG induced inhomogeneous deformation of the HOPG topmost layer that accordingly generated the Moiré patterns of the HOPG sample in di-chloroethane. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00396028
- Volume :
- 600
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Surface Science
- Publication Type :
- Academic Journal
- Accession number :
- 19589075
- Full Text :
- https://doi.org/10.1016/j.susc.2005.12.001