Carbon Nanotubes with a Triangular Cross‐section, Fabricated Using Anodic Porous Alumina as the Template

The fabrication of carbon nanotubes (CNTs) with controlled cross‐sectional shapes is reported for the first time. Anodic porous alumina with triangular openings is used as a template for the chemical vapor deposition synthesis of the CNTs with triangular cross‐sections (see Figure). The CNTs can be applied to the fabrication of nanoscale devices that require modified electronic characteristics.