{"id":143170,"date":"1993-01-01T00:00:00","date_gmt":"1993-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/estudio-del-comportamiento-del-oxido-de-estano-como-material-sensor-para-la-deteccion-de-mezclas-gaseosas-contaminantes\/"},"modified":"1993-01-01T00:00:00","modified_gmt":"1993-01-01T00:00:00","slug":"estudio-del-comportamiento-del-oxido-de-estano-como-material-sensor-para-la-deteccion-de-mezclas-gaseosas-contaminantes","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-tecnologicas\/estudio-del-comportamiento-del-oxido-de-estano-como-material-sensor-para-la-deteccion-de-mezclas-gaseosas-contaminantes\/","title":{"rendered":"Estudio del comportamiento del oxido de esta\u00f1o como material sensor para la deteccion de mezclas gaseosas contaminantes."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Isabel Sayago Olmo <\/strong><\/h2>\n<p>En la presente memoria de investigacion se estudia el comportamiento del oxido de esta\u00f1o como material sensor en la deteccion de mezclas gaseosas contaminantes y el papel del oxigeno en los procesos de deteccion. Los estudios preliminares permiten establecer las condiciones optimas de preparacion y pretratamientos para despues estudiar la influencia de los diferentes dopantes (pt, al, in y cr). El material sensor, los dopantes y los contactos electricos se obtienen por pulverizacion catodica.  los gases detectados son: el co y un oxido de nitrogeno de estequiometria nox (formado por la mezcla en equilibrio de no2 y no). Primero se estudia la respuesta de los sensores al co y a los oxidos de nitrogeno por separado para establecer la sensibilidad cruzada y despues el comportamiento cuando ambos gases estan presentes, determinado asi la selectividad.  la caracterizacion del material sensor se establece a partir de las curvas de deteccion, determinando la sensibilidad, selectividad y tiempos de respuesta y de recuperacion. La caracterizacion electrica de las peliculas se realiza mediante medidas de efecto hall obteniendo la movilidad, conductividad y el numero de portadores. Las medidas de impedancia compleja nos ayudan a conocer la estructura del material sensor (limites de grano, interfase electrodo-semiconductor&#8230;).  los analisis quimicos permiten identificar las fases presentes, orientacion preferente, morfolog\u00eda y tama\u00f1o de grano. La informacion obtenida nos da idea de los mecanismos involucrados en los procesos de conduccion y deteccion.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Estudio del comportamiento del oxido de esta\u00f1o como material sensor para la deteccion de mezclas gaseosas contaminantes.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Estudio del comportamiento del oxido de esta\u00f1o como material sensor para la deteccion de mezclas gaseosas contaminantes. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Isabel Sayago Olmo <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Complutense de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1993<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Jos\u00e9 Ignacio Robla Villalba<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Joaquin Hernaez Marin <\/li>\n<li>Javier Gutierrez Monreal (vocal)<\/li>\n<li>Juan  Andr\u00e9s De Agapito Serrano (vocal)<\/li>\n<li> Lopez Del Castillo Blanco Carlos (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Isabel Sayago Olmo En la presente memoria de investigacion se estudia el comportamiento del oxido de esta\u00f1o [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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