Transmission electron microscopy study of single-walled 0.4 nm carbon nanotubes

Experimental characterization and theoretical simulations both confirmed single-walled 0.4 nm carbon nanotubes (SWNTs) to be directly observable by high-resolution transmission electron microscopy (HRTEM), with amorphous carbon films as the supporting substrates. While the amorphous carbon film gave...

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Bibliographic Details
Published inChemical physics letters Vol. 369; no. 5; pp. 541 - 548
Main Authors Chan, Y.F., Peng, H.Y., Tang, Z.K., Wang, N.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 28.02.2003
Elsevier Science
Subjects
Cross-disciplinary physics: materials science; rheology
Exact sciences and technology
Materials science
Nanoscale materials and structures: fabrication and characterization
Physics
Carbon nanotubes
Transmission electron microscopy
Experimental study
Nanostructured materials
High-resolution methods
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Summary:Experimental characterization and theoretical simulations both confirmed single-walled 0.4 nm carbon nanotubes (SWNTs) to be directly observable by high-resolution transmission electron microscopy (HRTEM), with amorphous carbon films as the supporting substrates. While the amorphous carbon film gave rise to a uniform contrast which can overwhelm that of the SWNTs lying flat on the substrate, inclining SWNTs with an angle greater than 30° to the supporting film were found to result in a notable contrast of paired dark fringes. This SWNT contrast could be further enhanced by changing the HRTEM defocus condition.
ISSN:0009-2614
1873-4448
DOI:10.1016/S0009-2614(02)02050-X