{"id":36247,"date":"1998-01-01T00:00:00","date_gmt":"1998-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/contribucion-al-estudio-por-espectroscopia-infrarroja-de-capas-delgadas-de-sic-y-bn\/"},"modified":"1998-01-01T00:00:00","modified_gmt":"1998-01-01T00:00:00","slug":"contribucion-al-estudio-por-espectroscopia-infrarroja-de-capas-delgadas-de-sic-y-bn","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/contribucion-al-estudio-por-espectroscopia-infrarroja-de-capas-delgadas-de-sic-y-bn\/","title":{"rendered":"Contribucion al estudio por espectroscopia infrarroja de capas delgadas de sic y bn."},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Ben El Mekki Mar\u00eda <\/strong><\/h2>\n<p>En resumen, se han estudiado y caracterizado varias capas delgadas de sic y bn por espectroscopia infrarroja que es una t\u00e9cnica no destructiva, potente, sencilla y que nos permite obtener informaci\u00f3n sobre los efectos intr\u00ednsecos y extr\u00ednsecos del material.  por lo que se refiere al sic, se han estudiado capas estequiometricas depositadas por mbe a partir de fuente s\u00f3lida o gaseosa y capas depositadas por cvd a baja presi\u00f3n utilizando el precursor organomet\u00e1lico (si(ch3)4) y se ha establecido una correlaci\u00f3n entre las caracter\u00edsticas de las capas y las condiciones de dep\u00f3sito. Se ha mostrado tambi\u00e9n a partir de los espectros de rir, la posibilidad de depositar este material con buena calidad cristalina a temperaturas m\u00e1s bajas lo que abarata su coste. Tambi\u00e9n se han estudiado capas de sic no estequiometricas de sic y se ha determinado la relaci\u00f3n entre la composici\u00f3n x en las capas y el \u00edndice de refracci\u00f3n de estas mismas.  finalmente nos hemos extendido al estudio de capas de h-bn y hemos determinado la orientaci\u00f3n del eje principal c realizando medidas con luz polarizada. Tambi\u00e9n se ha explicado el fen\u00f3meno de inversi\u00f3n de los modos lo y to tanto en el caso de h-bn\/si como en el caso de h-bn\/nicr y se ha asociado al \u00e1ngulo de brewster.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Contribucion al estudio por espectroscopia infrarroja de capas delgadas de sic y bn.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Contribucion al estudio por espectroscopia infrarroja de capas delgadas de sic y bn. <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Ben El Mekki Mar\u00eda <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Aut\u00f3noma de barcelona<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1998<\/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>Jordi Pascual<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Teresa Mora M. <\/li>\n<li>Joan Esteve (vocal)<\/li>\n<li>Jos\u00e9 Millan (vocal)<\/li>\n<li>Josep Calderer (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Ben El Mekki Mar\u00eda En resumen, se han estudiado y caracterizado varias capas delgadas de sic y [&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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