{"id":160537,"date":"2023-09-28T15:42:54","date_gmt":"2023-09-28T10:12:54","guid":{"rendered":"https:\/\/www.gkseries.com\/blog\/?p=160537"},"modified":"2023-09-28T15:42:55","modified_gmt":"2023-09-28T10:12:55","slug":"red-r-green-g-and-blue-b-light-emitting-diodes-leds-were-fabricated-using-p-n-junctions-of-three-different-inorganic-semiconductors-having-different","status":"publish","type":"post","link":"https:\/\/www.gkseries.com\/blog\/red-r-green-g-and-blue-b-light-emitting-diodes-leds-were-fabricated-using-p-n-junctions-of-three-different-inorganic-semiconductors-having-different\/","title":{"rendered":"Red (R), Green (G) and Blue (B) Light Emitting Diodes (LEDs) were fabricated using p-n junctions of three different inorganic semiconductors having different"},"content":{"rendered":"\n<p>Q. Red (R), Green (G) and Blue (B) Light Emitting Diodes (LEDs) were fabricated using <em>p-n <\/em>junctions of three different inorganic semiconductors having different band-gaps. The built- in voltages of red, green and blue diodes are <em>VR<\/em>, <em>VG <\/em>and <em>VB<\/em>, respectively. Assume donor and acceptor doping to be the same (<em>N<\/em>A and <em>N<\/em>D, respectively) in the <em>p <\/em>and <em>n <\/em>sides of all the three diodes.<\/p>\n\n\n\n<p>Which one of the following relationships about the built-in voltages is TRUE?<\/p>\n\n\n\n<p>A. <em>VR <\/em>> <em>VG <\/em>> <em>VB<\/em><\/p>\n\n\n\n<p>B. <em>VR <\/em>&lt; <em>VG <\/em>&lt; <em>VB<\/em><\/p>\n\n\n\n<p>C. <em>VR <\/em>= <em>VG <\/em>= <em>VB<\/em><\/p>\n\n\n\n<p>D. <em>VR <\/em>> <em>VG <\/em>&lt; <em>VB<\/em><\/p>\n\n\n\n<p>Ans: <em>V<sub>R<\/sub> <\/em>&lt; <em>V<sub>G<\/sub> <\/em>&lt; <em>V<sub>B<\/sub><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Q. Red (R), Green (G) and Blue (B) Light Emitting Diodes (LEDs) were fabricated using p-n junctions of three different inorganic semiconductors having different band-gaps. The built- in voltages of red, green and blue diodes are VR, VG and VB, respectively. Assume donor and acceptor doping to be the same (NA and ND, respectively) in [&hellip;]<\/p>\n","protected":false},"author":419,"featured_media":160538,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","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":"","ast-disable-related-posts":"","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":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[5141],"tags":[5140],"class_list":["post-160537","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-gate","tag-gate-questions"],"_links":{"self":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts\/160537","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/users\/419"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/comments?post=160537"}],"version-history":[{"count":1,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts\/160537\/revisions"}],"predecessor-version":[{"id":160539,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts\/160537\/revisions\/160539"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/media\/160538"}],"wp:attachment":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/media?parent=160537"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/categories?post=160537"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/tags?post=160537"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}