Direct observation of six-membered rings in the upper and lower walls of a single-wall carbon nanotube by spherical aberration-corrected HRTEM

Kaori Hirahara; Koh Saitoh; Jun Yamasaki; Nobuo Tanaka

doi:10.1021/nl060458k

Direct observation of six-membered rings in the upper and lower walls of a single-wall carbon nanotube by spherical aberration-corrected HRTEM

Nano Lett. 2006 Aug;6(8):1778-83. doi: 10.1021/nl060458k.

Authors

Kaori Hirahara¹, Koh Saitoh, Jun Yamasaki, Nobuo Tanaka

Affiliation

¹ EcoTopia Science Institute, Nagoya University, Chikusa-ku, Nagoya, 464-8603, Japan. hirahara@esi.nagoya-u.ac.jp

PMID: 16895373
DOI: 10.1021/nl060458k

Abstract

Atomic arrangements of the continuous network of six-membered rings in a single graphene sheet constituting a single-wall carbon nanotube was imaged successfully by employing a spherical aberration-corrected HRTEM operated at 120 kV acceleration voltage. Utilizing two advantages of the aberration-corrected HRTEM, the images separately resolved the rings in the upper and lower walls. Such images can be considered to be the first "tomographic" atomic images taken by HRTEM. This is a striking result that changes the conventional concept of HRTEM as a projection image.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Computer Simulation
Image Enhancement / methods
Materials Testing
Microscopy, Electron, Transmission / methods*
Models, Chemical*
Models, Molecular*
Molecular Conformation
Nanotubes, Carbon / chemistry*
Nanotubes, Carbon / ultrastructure*
Particle Size
Surface Properties

Substances

Nanotubes, Carbon