Assignment of New Facets Developing on {111} Surfaces of Vapor-Deposited Diamond Crystals

The morphology of diamond particles synthesized by hot-filament chemical vapor deposition have been studied for assignment of the new and flat surfaces developing on rough {111} surfaces of a cubo-octahedron with the increase of crystal size. The new surfaces are assigned to {100} according to the interplanar angle with {100} surfaces of a cubo-octahedron, its smoothness, and the maintenance of the original cubo-octahedron shape with the increase of size, which have been observed by a scanning electron microscope.