Controlled orientation of ellipsoidal fullerene C[sub 70] in carbon nanotubes

Khlobystov, Andrei N.; Scipioni, Roberto; Nguyen-Manh, Duc; Britz, David A.; Pettifor, David G.; Briggs, G. Andrew D.; Lyapin, Sergey G.; Ardavan, Arzhang; Nicholas, Robin J.
February 2004
Applied Physics Letters;2/2/2004, Vol. 84 Issue 5, p792
Academic Journal
Density functional theory calculations predict two orientations for ellipsoidal C[sub 70] fullerenes inside single-walled carbon nanotubes (SWNTs) of different sizes: transverse orientation for C[sub 70] in (11,11) nanotubes (d=14.9 Å) and longitudinal orientation for C[sub 70] in (10,10) nanotubes (d=13.6 Å). SWNTs with these diameters have been prepared and filled with the C[sub 70] fullerenes, and characterized by Raman spectroscopy and high-resolution transmission electron microscopy, showing the orientations predicted by theory. © 2004 American Institute of Physics.


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