| Autor: | Toshiaki Takagi, Masami Ito, Tatsumi Ishihara, Hiroyasu Nishiguchi, Yusaku Takita |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Materials science
Bilayer Oxide chemistry.chemical_element Nanotechnology Condensed Matter Physics Electrochemistry Polyvinyl alcohol Copper Casting Electronic Optical and Magnetic Materials chemistry.chemical_compound chemistry Chemical engineering Mechanics of Materials Materials Chemistry Ceramics and Composites Mixed oxide Electrical and Electronic Engineering Thin film |
| Zdroj: | Journal of Electroceramics. 4:207-214 |
| ISSN: | 1385-3449 |
| DOI: | 10.1023/a:1009932414244 |
| Popis: | Preparation of CuO-BaTiO3 mixed oxide thin film by the decomposition of a self-assembled multibilayer film as a molecular template was investigated in this study. Furthermore, CO2 sensing property of the resultant thin film was investigated as a capacitive type sensor. The self-assembled bilayer film of few 1000 layers thickness can be obtained easily by casting an aqueous suspension consisting of dimethyldihexadecylammoiun bromide (DC1-16), Cu(ClO4)2, Ba(TiO(C2H4)2), 2,6-dimetyle-3,5heptadione (DHP), and polyvinyl alcohol. Divalent copper ion (Cu2+)) which is associated with 2 DHP molecules was incorporated into the molecular bilayer film and BaTiO3 precursor exists at the interspace of molecular bilayer film by coordinating with polyvinyl alcohol. Upquenching the organic-inorganic film at 1173 K leads to the uniform film of CuO-BaTiO3 oxide mixture. Although operating temperature shifted to higher temperature, the resultant film exhibits the capacitance change upon exposure to CO2. Consequently, it is concluded that the mixed oxide film of CuO-BaTiO3 prepared by the decomposition of multibilayer film was also an appropriate capacitive type CO2 sensor. |
| Databáze: | OpenAIRE |
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