Publicación: CHARACTERIZATION OF PHOTOCHEMICALLY GROWN PD LOADED WO3 THIN FILMS AND ITS EVALUATION AS AMMONIA GAS SENSOR
dc.creator | GERARDO ANDRÉS CABELLO GUZMÁN | |
dc.date | 2020 | |
dc.date.accessioned | 2025-01-10T15:13:39Z | |
dc.date.available | 2025-01-10T15:13:39Z | |
dc.date.issued | 2020 | |
dc.description.abstract | PD-LOADED TUNGSTEN OXIDE THIN FILMS HAVE BEEN SUCCESSFULLY FABRICATED BY DIRECT UV IRRADIATION OF BIS(BETA-IKETONATE)DIOXOTUNGSTEN(VI) AND PD(II) PRECURSOR COMPLEXES SPIN-COATED ON SI(100) SUBSTRATES. X-RAY DIFFRACTION (XRD) AND X-RAY PHOTOELECTRON SPECTROSCOPY (XPS) WERE USED TO ANALYZE THE CRYSTAL STRUCTURE AND THE CHEMICAL COMPOSITION OF THE FILMS BEFORE AND AFTER ANNEALING AT 500 °C. THE RESULTS OF XRD AND AFM ANALYSIS SHOWED THAT THE AS-PHOTODEPOSITED FILMS ARE AMORPHOUS WHEREAS THERMALLY TREATED FILMS PRESENT A ROUGHER MORPHOLOGY. POST-ANNEALING OF THE FILMS IN AIR AT 500 °C TRANSFORMS THE OXIDES TO A MONOCLINIC WO3 PHASE. ANNEALED 10% PD/WO3 FILMS EXHIBITED AN EXCELLENT RESPONSE TOWARDS 50 PPM AMMONIA GAS AT AN OPERATING TEMPERATURE OF 300 °C. THE PD-LOADED SENSORS PRESENTED HIGHER SENSITIVITY AND QUICKER RESPONSE-RECOVERY RATES THAN UNLOADED WO3 FILMS. | |
dc.format | application/pdf | |
dc.identifier.doi | 10.1016/j.jallcom.2020.154166 | |
dc.identifier.issn | 1873-4669 | |
dc.identifier.issn | 0925-8388 | |
dc.identifier.uri | https://repositorio.ubiobio.cl/handle/123456789/11017 | |
dc.language | spa | |
dc.publisher | JOURNAL OF ALLOYS AND COMPOUNDS | |
dc.relation.uri | 10.1016/j.jallcom.2020.154166 | |
dc.rights | PUBLICADA | |
dc.title | CHARACTERIZATION OF PHOTOCHEMICALLY GROWN PD LOADED WO3 THIN FILMS AND ITS EVALUATION AS AMMONIA GAS SENSOR | |
dc.title.alternative | CARACTERIZACIÓN DE PELÍCULAS DELGADAS WO CARGADAS DE PD CULTIVADAS FOTOQUÍMICAMENTE Y SU EVALUACIÓN COMO SENSOR DE GAS AMONÍACO3 | |
dc.type | ARTÍCULO | |
dspace.entity.type | Publication | |
ubb.Estado | PUBLICADA | |
ubb.Otra Reparticion | DEPARTAMENTO DE CIENCIAS BASICAS | |
ubb.Sede | CHILLÁN |