title: Influence of nanoparticle size to the electrical properties of naphthalenediimide on single-walled carbon nanotube wiring.
abstract: Nanoparticles of N,N'-bis(n-alkyl)tetracarbonatenaphthalenediimide (NDI) were adsorbed on single-walled carbon nanotube (SWNT) wires dispersed on a SiO(2) substrate. The electrical properties were measured along the long axis of the SWNTs, and in all cases through the nanoparticles showed rectification in semiconducting I-V curve. The plateau width of the I-V curve through the NDI nanoparticles on metallic SWNTs decreased as the particle size increased, while the rectification ratio increased. The conduction mechanism was changed from tunneling conduction to Schottky-like conduction and their boundary is at about 3 nm diameter.
authors.affiliation: Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan. tanaka@chem.sci.osaka-u.ac.jp
authors.forename: Hirofumi
authors.initials: H
authors.lastname: Tanaka
authors.forename: Liu
authors.initials: L
authors.lastname: Hong
authors.forename: Minoru
authors.initials: M
authors.lastname: Fukumori
authors.forename: Ryota
authors.initials: R
authors.lastname: Negishi
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Kobayashi
authors.forename: Daisuke
authors.initials: D
authors.lastname: Tanaka
authors.forename: Takuji
authors.initials: T
authors.lastname: Ogawa
mesh_terms: D004553:Electric Conductivity; D007094:Imides / Q000737:chemistry*; D008422:Materials Testing; D037742:Nanotubes, Carbon / Q000737:chemistry* / Q000648:ultrastructure*; D009281:Naphthalenes / Q000737:chemistry*; D010316:Particle Size; D012666:Semiconductors
chemical_list: D007094:Imides; D037742:Nanotubes, Carbon; D009281:Naphthalenes; C542131:naphthalenediimide