title: Synthesis of single- and double-walled carbon nanotube forests on conducting metal foils.
abstract: Here, we report a highly efficient growth of single-walled carbon nanotubes (SWNTs) and double-walled carbon nanotubes (DWNTs) on conducting metal foils. We found that foils made of Ni-based alloys with Cr or Fe serve as excellent substrates for SWNT (DWNT) synthesis. In significant contrast, a CNT grown on Ni, Fe foils contains a significant ratio of MWNTs. This result opens up an economical route for the mass production of SWNT (DWNT) forests and also enables the straightforward integration of CNTs into nanoelectronic devices, such as field emission displays.
authors.affiliation: Research Center for Advanced Carbon Materials, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan.
authors.forename: Tatsuki
authors.initials: T
authors.lastname: Hiraoka
authors.forename: Takeo
authors.initials: T
authors.lastname: Yamada
authors.forename: Kenji
authors.initials: K
authors.lastname: Hata
authors.forename: Don N
authors.initials: DN
authors.lastname: Futaba
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Kurachi
authors.forename: Sashirou
authors.initials: S
authors.lastname: Uemura
authors.forename: Motoo
authors.initials: M
authors.lastname: Yumura
authors.forename: Sumio
authors.initials: S
authors.lastname: Iijima