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Novel structures of carbon layers on a Pt(111) surface
Author(s) -
Fujita Tomohiro,
Kobayashi Wataru,
Oshima Chuhei
Publication year - 2005
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.1945
Subject(s) - graphene , scanning tunneling microscope , carbon fibers , hexagonal crystal system , layer (electronics) , crystallography , surface (topology) , materials science , carbon atom , quantum tunnelling , nanotechnology , chemistry , condensed matter physics , chemical physics , analytical chemistry (journal) , geometry , physics , optoelectronics , composite material , mathematics , ring (chemistry) , organic chemistry , composite number
The growth behaviour of carbon layers formed on a Pt(111) surface has been investigated by means of scanning tunnelling microscopy. A carbon layer with a ( $\sqrt{19}$ × $\sqrt{19}$ )R23.4° structure was grown by benzene exposure of 3 L at 1000 K. After exposure of >10 L, graphene islands with hexagonal shapes appeared in the surface terraces. The graphene islands grew beyond step edges, and their growth often caused bunching of the step edges by Pt atom migration. Copyright © 2005 John Wiley & Sons, Ltd.