Closed capped WS2 nanotubes with diameters from 30 to 110 nm are studied by high resolution transmission electron microscopy (HRTEM). The tubes exhibit preferentially a hexagonal stacking order. Atomic resolution images of a 30 nm diameter tube reveal a zigzag chirality. A lattice expansion in c‐axis direction of ≤11% is found within the outermost triple layers. The tube caps often display regular polygon angles. Structural defects like grain boundaries, non‐planar triple layers, dislocations, platelet‐like fragments, terraces, and amorphous precipitates are identified.
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Krause et al. (2011) studied this question.
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