title: Electronic properties of a single-walled carbon nanotube/150mer-porphyrin system measured by point-contact current imaging atomic force microscopy.
abstract: The electronic properties of a single-walled carbon nanotube/150mer of porphyrin polymer wire system were investigated. Current-voltage (I-V) curves were measured simultaneously along with topographic observations using point-contact current imaging atomic force microscopy. Symmetric I-V curves were obtained at bare single-walled carbon nanotubes but characteristic asymmetrical rectifying behavior was found at the single-walled carbon nanotube/150mer-porphyrin junctions. This finding is of key importance for the development of new nanoscale molecular electronic devices.
authors.affiliation: Research Center for Molecular-Scale Nanoscience, Institute for Molecular Science, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan.
authors.forename: Hirofumi
authors.initials: H
authors.lastname: Tanaka
authors.forename: Takashi
authors.initials: T
authors.lastname: Yajima
authors.forename: Masahiro
authors.initials: M
authors.lastname: Kawao
authors.forename: Takuji
authors.initials: T
authors.lastname: Ogawa
mesh_terms: D000327:Adsorption; D004553:Electric Conductivity; D004563:Electrochemistry; D018625:Microscopy, Atomic Force; D036103:Nanotechnology / Q000379:methods; D037742:Nanotubes, Carbon / Q000737:chemistry* / Q000648:ultrastructure; D011108:Polymers / Q000737:chemistry*; D011166:Porphyrins / Q000737:chemistry*
chemical_list: D037742:Nanotubes, Carbon; D011108:Polymers; D011166:Porphyrins