Atomic Structure and Electronic Properties of Single-Wall MoS2 Nanotubes.

Using atomically-resolved scanning tunneling microscopy and spectroscopy, we probe the structure and the electronic properties of sub-nanometer MoS[SUB2] single wall nanotubes (SWNT) at room temperature. We find that, the nanotubes condense uniformly in ropes with achiral atomic structure and conical ends. Scanning tunneling spectroscopy measurements indicate a semiconducting behavior that is slightly dependent on their structural parameters. The contrast of atomic scale topographic and current STM images reveal the details of the lattice structure which allow us to identify clearly the locations of both atoms on the tube surface. By using AFM as a manipulating tool, we are able to transport or distort single MoS[SUB2] nanotubes. We will show how to artificially produce kinks, draw a circle, and write letters or numbers from MoS[SUB2] SWNT using AFM techniques. [ABSTRACT FROM AUTHOR]