Construction of a two-dimensional molecule-nanoparticle network using iron(II) bis(terpyridine) complex formation for molecular-device applications
| Autor: | S. Hirata, K. Azuma, Daisuke Hobara, M.‐S. Choi, J. Kasahara, M. Murata, Y. Ishioka, S. Kondo |
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| Rok vydání: | 2007 |
| Předmět: |
Chemistry
Nanoparticle Surfaces and Interfaces Conjugated system Condensed Matter Physics Surfaces Coatings and Films Electronic Optical and Magnetic Materials Metal chemistry.chemical_compound Chemical bond Colloidal gold visual_art Polymer chemistry Monolayer Materials Chemistry visual_art.visual_art_medium Molecule Organic chemistry Electrical and Electronic Engineering Terpyridine |
| Zdroj: | physica status solidi (a). 204:1706-1711 |
| ISSN: | 1862-6319 1862-6300 |
| DOI: | 10.1002/pssa.200675360 |
| Popis: | We report a novel method to construct a two-dimensional network of gold nanoparticles and metal complex molecules. Terpyridine derivatives having a thiol group are adsorbed on a gold nanoparticle surface through formation of a gold-sulfur bond. A monolayer of nanoparticles is then formed on the water surface, then transferred onto a Si/SiO 2 substrate. The introduction of Fe 2+ from a Fe(BF 4 ) 2 solution forms an iron(II) bis(terpyridine) complex, which simultaneously forms a network where the complex molecules interlink adjacent nanoparticles. The conductivity of the network, formed by the conjugated terpyridine derivative, is 4 or 5 orders of magnitude higher than that of non-conjugated derivatives. Conductivity is modulated by gate voltage when a conjugated derivative is used but not when a non-conjugated derivative is used. |
| Databáze: | OpenAIRE |
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