Bridging nanogap electrodes by in situ electropolymerization of a bis(terthiophenylphenanthroline)ruthenium complex.
A novel complex containing a 3,8-bis[terthiophenyl-(1,10-phenanthroline)] ligand coordinated to [Ru(bpy)(2)] was synthesized and characterized by electrochemical and spectroscopic techniques. The complex was shown to be a suitable starting material for the electrodeposition of functionalized molecular wires between nanogap electrodes to generate stable molecular nanodevices. Temperature-dependent nonlinear I-V curves were obtained at 80-300 K. The material can also be deposited on indium tin oxide (ITO) to form compact electrochromic films at surface concentrations lower than approximately 1 x 10(-8) mol cm(2); however, a more loosely bond fibrous form is preferentially deposited at higher surface concentrations.
Araki
Koiti
K
Research Center for Molecular Nanoscience, Institute for Molecular Science, Okazaki National Research Institutes, Nishigo-Naka 38, Myodaiji-cho, Okazaki, Aichi, 444-8585, Japan. koiaraki@iq.usp.br
Endo
Hiroaki
H
Masuda
Gou
G
Ogawa
Takuji
T