Structure of multi-wall carbon nanotubes: AA' stacked graphene helices

Jae-Kap Lee, Sohyung Lee, Yong-Il Kim, Jin-Gyu Kim, Kyung-Il Lee, Jae-Pyoung Ahn, Bong-Ki Min, Chung-Jong Yu, Keun Hwa Chae, Phillip John

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Abstract

The structure of multi-wall carbon nanotubes has been attributed previously to disordered stacking of the graphene planes. Evidence is presented that the nanotubes analyzed in this paper occur with stacked graphene layers in the sequence of AA0, where alternate graphene planes are translated by half the hexagon width. We further present proof that the crystalline materials comprise graphene helices (5 nm in width), rather than in the form of a perfect tube. We also show that the structural model proposed here may be a common structure for multi-wall carbon nanotubes.
Original languageEnglish
Article number161911
Number of pages5
JournalApplied Physics Letters
Volume102
Issue number16
Early online date24 Apr 2013
DOIs
Publication statusPublished - 2013

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