| 초록 |
Low-dimensional nanostructures show quantum confinement which leads to remarkable electronic properties, making them attractive elements for nanoscale electronic applications. As 1-dimensional nanomaterials, Boron nitride (BN) nanotubes are of special interest since, unlike carbon nanotubes, all chiralities show semiconducting properties. We will report a synthesis method based on the use of low pressures of the molecular precursor borazine, in conjunction with a floating nickelocene catalyst which results in the formation of double-walled boron nitride nanotubes. Similar to carbon nanotube growth, the development of a catalytic chemical vapor deposition (CCVD) method has the potential for creating high quality boron nitride nanotubes with high production volumes. As an analogy of 2-dimensional graphene, white graphene, which is hexagonal boron nitride (h-BN), has become an issue these days. Synthesis methods and properties of h-BN will be also discussed as an extension of BN nanotubes. |
