Formation of electric paths in a chemically adsorbed monomolecular layer containing pyrrolyl groups
| Autor: | Norihisa Mino, Kazufumi Ogawa, Shinichi Yamamoto |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Chemistry
Metals and Alloys Analytical chemistry Surfaces and Interfaces Substrate (electronics) Surfaces Coatings and Films Electronic Optical and Magnetic Materials Adsorption Polymerization Electrical resistivity and conductivity Electrode Monolayer Materials Chemistry Organic chemistry Thin film Layer (electronics) |
| Zdroj: | Thin Solid Films. 468:240-243 |
| ISSN: | 0040-6090 |
| DOI: | 10.1016/j.tsf.2004.03.045 |
| Popis: | A monomolecular layer containing pyrrolyl groups at the surface was prepared between two parallel Pt electrodes on a glass substrate by a chemical adsorption technique using N-[11-(trichlorosilyl)undecyl]pyrrole. Then the pyrrolyl were polymerized inpure water by applying a 40-V DC between the two electrodes. It has been confirmed that several electric paths were formed between the two Pt electrodes by a decoration technique using electrochemical polymerization in an aqueous medium containing pyrrole after the polymerization. The resistance of the electric paths in the monomolecular layer has been measured using an atomic force microscope (AFM) attached with an Au-covered tip at room temperature. For a measurement volume of about 2 nm (thickness of the monomolecular layer)×100 μm (the average width of an electric path)×0.6 mm (the distance between Pt positive electrode and the Au-covered AFM tip) the resistance at room temperature of the electric path was 4 kΩ both under ambient conditions and in a reduced pressure of 1.2×10−2 Pa. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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