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Bridging Nanogap Electrodes by In Situ Electropolymerization of a Bis(terthiophenylphenanthroline)ruthenium Complex
Author(s) -
Araki Koiti,
Endo Hiroaki,
Masuda Gou,
Ogawa Takuji
Publication year - 2004
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.200400063
Subject(s) - electrochromism , ruthenium , indium tin oxide , electrode , materials science , electrochemistry , in situ , tin , molecule , bridging (networking) , electrochromic devices , chemical engineering , thin film , nanotechnology , chemistry , organic chemistry , metallurgy , catalysis , computer network , computer science , engineering
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 ≈1×10 −8 mol cm 2 ; however, a more loosely bond fibrous form is preferentially deposited at higher surface concentrations.