title: Nanotechnology: 'buckypaper' from coaxial nanotubes.
abstract: Double-walled carbon nanotubes are needed in a pure, highly crystalline form before features such as their electronic properties, thermal transport and mechanical behaviour can be investigated. Here we fabricate a paper-like material that consists of hexagonally packed bundles of clean, coaxial carbon nanotubes whose double walls vary little in diameter; it is prepared in high yields using chemical-vapour deposition with a conditioning catalyst and two-step purification. Our results will enable investigation of the physical properties of double-walled carbon nanotubes, which are predicted to be superior to those of both their single- and multiwalled relatives.
authors.affiliation: Faculty of Engineering, Shinshu University, 4-17-1 Wakasato, Nagano-shi 380-8553, Japan. endo@endomoribu.shinshu-u.ac.jp
authors.forename: M
authors.initials: M
authors.lastname: Endo
authors.forename: H
authors.initials: H
authors.lastname: Muramatsu
authors.forename: T
authors.initials: T
authors.lastname: Hayashi
authors.forename: Y A
authors.initials: YA
authors.lastname: Kim
authors.forename: M
authors.initials: M
authors.lastname: Terrones
authors.forename: M S
authors.initials: MS
authors.lastname: Dresselhaus