{"id":80184,"date":"2024-01-14T13:17:42","date_gmt":"2024-01-14T13:17:42","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/semiconductor-intrinseco-semiconductor-puro-definicion-y-tipos\/"},"modified":"2024-01-16T20:26:21","modified_gmt":"2024-01-16T20:26:21","slug":"semiconductor-intrinseco-semiconductor-puro-definicion-y-tipos","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/es\/semiconductor-intrinseco-semiconductor-puro-definicion-y-tipos\/","title":{"rendered":"Semiconductor intr\u00ednseco \u2013 Semiconductor puro | Definici\u00f3n y tipos"},"content":{"rendered":"<h2>Semiconductores Intr\u00ednsecos: La Pureza en la Conducci\u00f3n El\u00e9ctrica<\/h2>\n<p>Los semiconductores, materiales inorg\u00e1nicos u org\u00e1nicos con propiedades \u00fanicas para controlar la conducci\u00f3n el\u00e9ctrica, juegan un papel crucial en la tecnolog\u00eda moderna. Estos materiales presentan una conductividad el\u00e9ctrica intermedia entre un metal y un aislante como el vidrio. La clave de su funcionalidad reside en su estructura qu\u00edmica, temperatura, iluminaci\u00f3n y la presencia de dopantes.<\/p>\n<h2>La Brecha Energ\u00e9tica: Coraz\u00f3n de los Semiconductores<\/h2>\n<p>En la f\u00edsica del estado s\u00f3lido, la brecha energ\u00e9tica o banda prohibida es un rango de energ\u00eda entre la banda de valencia y la banda de conducci\u00f3n donde no se permiten estados electr\u00f3nicos. Esta brecha, menor a 4eV (aproximadamente 1eV), es fundamental para entender su comportamiento. A diferencia de los conductores, los electrones en los semiconductores necesitan energ\u00eda, por ejemplo, de la radiaci\u00f3n ionizante, para cruzar esta brecha y alcanzar la banda de conducci\u00f3n.<\/p>\n<h2>Tipos de Semiconductores: Intrinsicidad y Doping<\/h2>\n<p>Los semiconductores se clasifican en intr\u00ednsecos y extr\u00ednsecos. Los <strong>semiconductores intr\u00ednsecos<\/strong> son puros, compuestos por un solo elemento y sin dopaje intencional. Por ejemplo, un cm<sup>3<\/sup> de germanio puro a 20 \u00b0C contiene alrededor de 4.2\u00d710<sup>22<\/sup> \u00e1tomos, pero tambi\u00e9n cerca de 2.5 x 10<sup>13<\/sup> electrones libres y 2.5 x 10<sup>13<\/sup> huecos, generados por excitaci\u00f3n t\u00e9rmica.<\/p>\n<p>Por otro lado, los <strong>semiconductores extr\u00ednsecos<\/strong> se dopan intencionalmente para modificar sus propiedades electr\u00f3nicas. En los semiconductores tipo p, se introducen \u00e1tomos impuros como el boro, que crean \u00abhuecos\u00bb en la banda de valencia. En cambio, los semiconductores tipo n, se dopan con \u00e1tomos como el f\u00f3sforo, a\u00f1adiendo electrones excedentes en la banda de conducci\u00f3n.<\/p>\n<h2>Tabla Comparativa: Semiconductores Intr\u00ednsecos y Extr\u00ednsecos<\/h2>\n<table>\n<tr>\n<th>Semiconductor<\/th>\n<th>Tipo<\/th>\n<th>Brecha de Banda (eV)<\/th>\n<th>Movilidad Electr\u00f3nica (cm\u00b2\/Vs)<\/th>\n<th>Movilidad de Huecos (cm\u00b2\/Vs)<\/th>\n<th>Conductividad T\u00e9rmica (W\/mK)<\/th>\n<\/tr>\n<tr>\n<td>Silicio (Si)<\/td>\n<td>Intr\u00ednseco<\/td>\n<td>1.12<\/td>\n<td>1500<\/td>\n<td>450<\/td>\n<td>150<\/td>\n<\/tr>\n<tr>\n<td>Germanio (Ge)<\/td>\n<td>Intr\u00ednseco<\/td>\n<td>0.67<\/td>\n<td>3900<\/td>\n<td>1900<\/td>\n<td>60<\/td>\n<\/tr>\n<tr>\n<td>Arseniuro de Galio (GaAs)<\/td>\n<td>Intr\u00ednseco<\/td>\n<td>1.43<\/td>\n<td>8500<\/td>\n<td>400<\/td>\n<td>46<\/td>\n<\/tr>\n<tr>\n<td>Silicio dopado con Boro (p-Si)<\/td>\n<td>p-tipo<\/td>\n<td>1.12<\/td>\n<td>1500<\/td>\n<td>1800<\/td>\n<td>150<\/td>\n<\/tr>\n<tr>\n<td>Silicio dopado con F\u00f3sforo (n-Si)<\/td>\n<td>n-tipo<\/td>\n<td>1.12<\/td>\n<td>1500<\/td>\n<td>4500<\/td>\n<td>150<\/td>\n<\/tr>\n<tr>\n<td>GaAs dopado con Aluminio (p-GaAs)<\/td>\n<td>p-tipo<\/td>\n<td>1.43<\/td>\n<td>8500<\/td>\n<td>200<\/td>\n<td>46<\/td>\n<\/tr>\n<tr>\n<td>GaAs dopado con Silicio (n-GaAs)<\/td>\n<td>n-tipo<\/td>\n<td>1.43<\/td>\n<td>8500<\/td>\n<td>800<\/td>\n<td>46<\/td>\n<\/tr>\n<\/table>\n<h2>Aplicaciones y Consideraciones Finales<\/h2>\n<p>Los semiconductores intr\u00ednsecos no son muy \u00fatiles por s\u00ed solos, ya que no son ni muy buenos conductores ni aislantes. Sin embargo, su conductividad se puede aumentar y controlar mediante el dopaje y la aplicaci\u00f3n de campos el\u00e9ctricos. Un ejemplo clave es el germanio, que por su baja brecha de banda, requiere enfriamiento para reducir la generaci\u00f3n t\u00e9rmica de portadores de carga a un nivel aceptable.<\/p>\n<p>En resumen, los semiconductores intr\u00ednsecos y extr\u00ednsecos forman la base de innumerables dispositivos electr\u00f3nicos, desde microprocesadores hasta paneles solares, demostrando la importancia cr\u00edtica de la f\u00edsica del estado s\u00f3lido en el desarrollo tecnol\u00f3gico.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.electricity-magnetism.org\/wp-content\/uploads\/2022\/01\/logo.png\" alt=\"Intrinsic Semiconductor \u2013 Pure Semiconductor\" \/><\/p>\n<div style=\"text-align: center; font-size: 20px;\">\n    <a href=\"https:\/\/www.electricity-magnetism.org\/intrinsic-semiconductor-pure-semiconductor\/\">Original Article<\/a>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Un semiconductor intr\u00ednseco es completamente puro sin ninguna especie dopante importante. Por lo tanto, los semiconductores intr\u00ednsecos tambi\u00e9n se conocen como semiconductores puros o semiconductores tipo i.<\/p>\n","protected":false},"author":1,"featured_media":1582,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[9],"tags":[],"class_list":["post-80184","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sin-categorizar","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Semiconductor intr\u00ednseco \u2013 Semiconductor puro | Definici\u00f3n y tipos<\/title>\n<meta name=\"description\" content=\"Un semiconductor intr\u00ednseco es completamente puro sin ninguna especie dopante importante. 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