SciELO - Scientific Electronic Library Online

vol.22 issue4Estudio y modelado de la interfase Si-SiO2, usando estructuras MOSPropiedades dieléctricas del nitroprusiato Fe [Fe (CN)5NO] ·5H2O author indexsubject indexsearch form
Home Pagealphabetic serial listing  

Services on Demand




Related links

  • Have no similar articlesSimilars in SciELO


Superficies y vacío

Print version ISSN 1665-3521


TORRES FRAUSTO, Carlos  and  AVILA GARCIA, Alejandro. Pyrrole-added Fe2O3 films by ultrasonic spray pyrolisis. Superf. vacío [online]. 2009, vol.22, n.4, pp.15-19. ISSN 1665-3521.

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.

Keywords : Composite films; Polypyrrole and iron oxide; Ultrasonic spray pyrolisis.

        · text in English     · English ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License