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- Title
Formation of a Molecular Wire Using the Chemically Adsorbed Monomolecular Layer Having Pyrrolyl Groups.
- Authors
Ogawa, Kazufumi; Mino, Norihisa; Yamamoto, Shin-Ichi; Ohtake, Tadashi
- Abstract
A molecular wire containing polypyrrolyl conjugate bonds has been prepared by a chemical adsorption technique using 1,1,1-trichloro-12-pyrrolyl-1-siladodecane (PNN) and an electrooxidative polymerization technique, and the conductivity of the molecular wire without any dopant has been measured by using AFM/STM at room temperature. When sample dimension measured was about 0.3 nm (thickness of the conductive portion in the PNN monomolecular layer) ×100 μm (the average width of an electric path) ×2mm (the distance between Pt positive electrode and the AFM tip covered with Au), the conductivity of the polymerized PNN molecular wire at room temperature was larger than 1.6 × 105 S/cm both in an atmosphere and in a vacuum chamber of 10-5 Torr. The activation energy obtained by Arrhenius’ plots was almost zero in the temperature range between 320 and 450 K.
- Subjects
NANOWIRES; MONOMOLECULAR films; ADSORPTION (Chemistry); ELECTRIC conductivity; ARRHENIUS equation; ELECTRODES; VACUUM
- Publication
Journal of Nanotechnology, 2011, p1
- ISSN
1687-9503
- Publication type
Article
- DOI
10.1155/2011/560830