Electrochemical Analysis of Metal Complex Wires and Their Long-range Electron Transport Properties

The bottom-up methods have recently attracted much attention as the fabrication techniques of nanoscale devices. Self-assembled monolayer (SAM) can be a basis to construct nanoscale structures, and many researchers have challenged to fabricate multilayer systems with self assembly. Among a variety of the preparation methods of self-assembled multilayer structures, the stepwise coordination is one of the most attractive methods because it allows us to construct complex oligomer wires quantitatively and regularly using very simple processes. Our main research targets are the fabrication of π-conjugated bis(terpyridine) complex oligomer wires and their electron transport properties. Linear and branched wires were constructed by the stepwise coordination method, and their electron transport mechanism was analyzed by potential-step chronoamperometry. Additionally, it was found that bis(terpyridine) complex oligomer wires have the excellent long-range electron transport ability and we can control it by changing combination of surface anchoring molecules, metal ions and bridging ligands.

[1]  H. Nishihara,et al.  Bottom-up fabrication of redox-active metal complex oligomer wires on an H-terminated Si(111) surface. , 2011, Chemical communications.

[2]  Katsuaki Kobayashi,et al.  Memory effects in molecular films of free-standing rod-shaped ruthenium complexes on an electrode. , 2011, Angewandte Chemie.

[3]  J. Hummelen,et al.  Evidence for quantum interference in SAMs of arylethynylene thiolates in tunneling junctions with eutectic Ga-In (EGaIn) top-contacts. , 2011, Journal of the American Chemical Society.

[4]  H. Nishihara,et al.  Reversible on/off conductance switching of single diarylethene immobilized on a silicon surface. , 2011, Journal of the American Chemical Society.

[5]  G. Pera,et al.  Directionally oriented LB films of an OPE derivative: assembly, characterization, and electrical properties. , 2011, Langmuir : the ACS journal of surfaces and colloids.

[6]  Peter H. Dinolfo,et al.  Thickness, surface morphology, and optical properties of porphyrin multilayer thin films assembled on Si(100) using copper(I)-catalyzed azide-alkyne cycloaddition. , 2011, Langmuir : the ACS journal of surfaces and colloids.

[7]  B. Fabre.  Ferrocene-terminated monolayers covalently bound to hydrogen-terminated silicon surfaces. Toward the development of charge storage and communication devices. , 2010, Accounts of chemical research.

[8]  S. Yau,et al.  Molecular assembly and electropolymerization of 3,4-ethylenedioxythiophene on Au(111) single crystal electrode as probed by in situ electrochemical STM in 0.10 M HClO4. , 2010, Langmuir : the ACS journal of surfaces and colloids.

[9]  H. Nishihara,et al.  Surface junction effects on the electron conduction of molecular wires. , 2010, Journal of the American Chemical Society.

[10]  A. Tivanski,et al.  Electromechanical Properties of Self-Assembled Monolayers of Tetrathiafulvalene Derivatives Studied by Conducting Probe Atomic Force Microscopy , 2010 .

[11]  G. Whitesides,et al.  Molecular rectification in metal-SAM-metal oxide-metal junctions. , 2009, Journal of the American Chemical Society.

[12]  Yuyuan Tian,et al.  Rectification and stability of a single molecular diode with controlled orientation. , 2009, Nature chemistry.

[13]  M. Nielsen,et al.  Structure of the buried metal-molecule interface in organic thin film devices. , 2009, Nano letters.

[14]  E. Vauthey,et al.  Zipper assembly of vectorial rigid-rod pi-stack architectures with red and blue naphthalenediimides: toward supramolecular cascade n/p-heterojunctions. , 2008, Angewandte Chemie.

[15]  E. Soto,et al.  Photocurrent generation in noncovalently assembled multilayered thin films. , 2008, Langmuir : the ACS journal of surfaces and colloids.

[16]  H. Nishihara,et al.  Surface Bottom-up Fabrication of Porphyrin-terminated Metal Complex Molecular Wires with Photo-electron Conversion Properties on ITO , 2008 .

[17]  M. Steigerwald,et al.  Reversible switching in molecular electronic devices. , 2007, Journal of the American Chemical Society.

[18]  H. Nishihara,et al.  Synthesis of molecular wires of linear and branched bis(terpyridine)-complex oligomers and electrochemical observation of through-bond redox conduction. , 2007, Chemistry, an Asian journal.

[19]  B. Feringa,et al.  Photo- and electro-chromism of diarylethene modified ITO electrodes-towards molecular based read-write-erase information storage. , 2006, Chemical communications.

[20]  A. Vaskevich,et al.  Divergent growth of coordination dendrimers on surfaces. , 2006, Journal of the American Chemical Society.

[21]  Franklin Anariba,et al.  Stepwise formation and characterization of covalently linked multiporphyrin-imide architectures on Si(100). , 2006, Journal of the American Chemical Society.

[22]  P. Dutta,et al.  Controlling structure from the bottom-up: structural and optical properties of layer-by-layer assembled palladium coordination-based multilayers. , 2006, Journal of the American Chemical Society.

[23]  H. Nishihara,et al.  Synthesis of A New Terpyridine Ligand Combined with Ruthenium(II) Complex and its Usage in the Stepwise Fabrication of Complex Polymer Wires on Gold , 2006 .

[24]  H. Nishihara,et al.  Stepwise Preparation of Linear π-Conjugated Bis(terpyridine)metal Polymer Chains at Gold Surface , 2005 .

[25]  D. Guldi,et al.  Exceptionally small attenuation factors in molecular wires. , 2004, Journal of the American Chemical Society.

[26]  M. Wasielewski,et al.  Dynamics of photoinduced charge transfer and hole transport in synthetic DNA hairpins. , 2001, Accounts of chemical research.

[27]  C. Chidsey,et al.  Free Energy and Temperature Dependence of Electron Transfer at the Metal-Electrolyte Interface , 1991, Science.

[28]  A. Ewing,et al.  Electronic properties and redox conduction of ferrocene-substituted high polymeric phosphazenes , 1988 .