New Crystal Structures of WS2: Microtubes, Ribbons, and Ropes

Abstract

WS2 microtubes, ribbons, and ropes are some of the unusual forms of inorganic crystals – grown by a chemical transport reaction – for which evidence is presented here. The Figure shows a WS2 rope composed of four nanotubes with one nanotube periodically wound around the widest tube. A further example, of two nanotubes wound around each other, can be found on the front cover.