| Journal: | Superficies y vacío |
| Database: | PERIÓDICA |
| System number: | 000365423 |
| ISSN: | 1665-3521 |
| Authors: | Torres Frausto, Carlos1 Avila Garcia, Alejandro1 |
| Institutions: | 1Instituto Politécnico Nacional, Centro de Investigación y de Estudios Avanzados, México, Distrito Federal. México |
| Year: | 2009 |
| Season: | Dic |
| Volumen: | 22 |
| Number: | 4 |
| Pages: | 15-19 |
| Country: | México |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | Fe2O3 thin films were grown by Ultrasonic Spray Pyrolisis from a 0.05 aqueous solution of FeCl3 added with a small amount of pyrrole monomer. Films at different substrate temperature and pyrrole content were grown. They were characterized by using x–ray diffraction (XRD), infrared spectroscopy (FTIR) and atomic force microscopy (AFM). Results indicated that at low substrate temperature (approximately < 200°C) the films mainly resemble the polypyrrole structure. At higher temperatures up to 400°C the trend is to form the hematite phase (Fe2O3) of iron oxide. Furthermore, the surface morphology exhibits nano–size features, which can be changed by using different pyrrole contents. This last feature could be useful for usage of the film as a gas sensor |
| Disciplines: | Ingeniería |
| Keyword: | Ingeniería de materiales, Películas compuestas, Oxido de hierro, Polipirrol, Pirólisis |
| Keyword: | Engineering, Materials engineering, Composite films, Iron oxide, Polypyrrole, Pyrolysis |
| Full text: | Texto completo (Ver HTML) |
