physica status solidi (b)
© WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Editor: Stefan Hildebrandt (Editor-in-Chief), Sabine Bahrs (Deputy Editor)
Online ISSN: 1521-3951
Back Cover: High resolution TEM study of WS2 nanotubes (Phys. Status Solidi B 11/2011)
In the article by Matthias Krause et al. (pp. 2716-2719), closed capped WS2 nanotubes with diameters from 30 to 110 nm are studied by high resolution transmission electron microscopy (HRTEM). While WS2 nanotubes synthesized in a large-scale fluidized-bed reactor display a high degree of structural order in general, the HRTEM investigations reveal structural defects like a c-axis lattice expansion, amorphous precipitates, non-planar triple layers and dislocations within the outer walls of the tubes. The cover image shows the HRTEM image of the middle part of a WS2 nanotube with 50 nm outer diameter. The insets, corresponding to the areas indicated by white boxes, point to the stacking order derived by fast Fourier transformation (FFT) analysis.