{"id":25984,"date":"2018-10-12T11:33:36","date_gmt":"2018-10-12T09:33:36","guid":{"rendered":"https:\/\/www.iemn.fr\/?page_id=25984"},"modified":"2019-02-11T17:39:37","modified_gmt":"2019-02-11T15:39:37","slug":"simulation-of-nitride-based-electronic-devices","status":"publish","type":"page","link":"https:\/\/www.iemn.fr\/en\/la-recherche\/les-groupes\/silphyde\/research\/simulation-of-nitride-based-electronic-devices","title":{"rendered":"Simulation of nitride-based electronic devices"},"content":{"rendered":"<div id='layer_slider_1'  class='avia-layerslider main_color avia-shadow  avia-builder-el-0  el_before_av_submenu  avia-builder-el-first  container_wrap sidebar_right'  style='height: 261px;'  ><div id=\"layerslider_45_1q1wpgqy724vn\" data-ls-slug=\"homepageslider\" class=\"ls-wp-container fitvidsignore ls-selectable\" style=\"width:1140px;height:260px;margin:0 auto;margin-bottom: 0px;\"><div class=\"ls-slide\" data-ls=\"bgposition:50% 50%;duration:6000;transition2d:5;\"><img loading=\"lazy\" decoding=\"async\" width=\"2600\" height=\"270\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_silphyde-1.jpg\" class=\"ls-bg\" alt=\"\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_silphyde-1.jpg 2600w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_silphyde-1-300x31.jpg 300w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_silphyde-1-768x80.jpg 768w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_silphyde-1-1030x107.jpg 1030w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_silphyde-1-1500x156.jpg 1500w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_silphyde-1-705x73.jpg 705w\" sizes=\"auto, (max-width: 2600px) 100vw, 2600px\" \/><ls-layer style=\"font-size:14px;text-align:left;font-style:normal;text-decoration:none;text-transform:none;font-weight:700;letter-spacing:0px;background-position:0% 0%;background-repeat:no-repeat;mix-blend-mode:normal;top:231px;left:0px;height:30px;width:360px;line-height:32px;color:#ffffff;border-radius:6px 6px 6px 6px;padding-left:50px;background-color:rgba(0, 0, 0, 0.57);\" class=\"ls-l ls-ib-icon ls-text-layer\" data-ls=\"minfontsize:0;minmobilefontsize:0;\"><i class=\"fa fa-user-circle\" style=\"color:#f2f2f2;margin-right:0.8em;font-size:1em;transform:translateY( -0.125em );\"><\/i>GROUPE DE RECHERCHE : SILPHYDE<\/ls-layer><\/div><div class=\"ls-slide\" data-ls=\"bgposition:50% 50%;duration:6000;transition2d:5;\"><img loading=\"lazy\" decoding=\"async\" width=\"2600\" height=\"270\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_silphyde1.jpg\" class=\"ls-bg\" alt=\"\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_silphyde1.jpg 2600w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_silphyde1-300x31.jpg 300w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_silphyde1-768x80.jpg 768w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_silphyde1-1030x107.jpg 1030w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_silphyde1-1500x156.jpg 1500w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_silphyde1-705x73.jpg 705w\" sizes=\"auto, (max-width: 2600px) 100vw, 2600px\" \/><ls-layer style=\"font-size:14px;text-align:left;font-style:normal;text-decoration:none;text-transform:none;font-weight:700;letter-spacing:0px;background-position:0% 0%;background-repeat:no-repeat;mix-blend-mode:normal;top:231px;left:0px;height:30px;width:360px;line-height:32px;color:#ffffff;border-radius:6px 6px 6px 6px;padding-left:50px;background-color:rgba(0, 0, 0, 0.57);\" class=\"ls-l ls-ib-icon ls-text-layer\" data-ls=\"minfontsize:0;minmobilefontsize:0;\"><i class=\"fa fa-user-circle\" style=\"color:#f2f2f2;margin-right:0.8em;font-size:1em;transform:translateY( -0.125em );\"><\/i>GROUPE DE RECHERCHE : SILPHYDE<\/ls-layer><\/div><div class=\"ls-slide\" data-ls=\"bgposition:50% 50%;duration:6000;transition2d:5;\"><img loading=\"lazy\" decoding=\"async\" width=\"2600\" height=\"270\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_silphyde2.jpg\" class=\"ls-bg\" alt=\"\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_silphyde2.jpg 2600w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_silphyde2-300x31.jpg 300w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_silphyde2-768x80.jpg 768w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_silphyde2-1030x107.jpg 1030w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_silphyde2-1500x156.jpg 1500w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/sliders_groupe_silphyde2-705x73.jpg 705w\" sizes=\"auto, (max-width: 2600px) 100vw, 2600px\" \/><ls-layer style=\"font-size:14px;text-align:left;font-style:normal;text-decoration:none;text-transform:none;font-weight:700;letter-spacing:0px;background-position:0% 0%;background-repeat:no-repeat;mix-blend-mode:normal;top:231px;left:0px;height:30px;width:360px;line-height:32px;color:#ffffff;border-radius:6px 6px 6px 6px;padding-left:50px;background-color:rgba(0, 0, 0, 0.57);\" class=\"ls-l ls-ib-icon ls-text-layer\" data-ls=\"minfontsize:0;minmobilefontsize:0;\"><i class=\"fa fa-user-circle\" style=\"color:#f2f2f2;margin-right:0.8em;font-size:1em;transform:translateY( -0.125em );\"><\/i>GROUPE DE RECHERCHE : SILPHYDE<\/ls-layer><\/div><\/div><\/div>\n<div id='sub_menu1'  class='av-submenu-container av-jrqfadqy-807d5a51dd3616f0d00a06e9b2d077f0 footer_color  avia-builder-el-1  el_after_av_layerslider  el_before_av_heading  submenu-not-first container_wrap sidebar_right' style='z-index:301' ><div class='container av-menu-mobile-disabled av-submenu-pos-left'><ul id='av-custom-submenu-1' class='av-subnav-menu' role='menu'>\n<li class='menu-item av-av_submenu_item-8cfdaa9ad07fd6a0ccb509a50dffc6f6 menu-item-top-level menu-item-top-level-1' role='menuitem'><a href='https:\/\/www.iemn.fr\/en\/?page_id=25957'  ><span class='avia-bullet'><\/span><span class='avia-menu-text'>Introduction<\/span><\/a><\/li>\n<li class='menu-item av-av_submenu_item-b4f170efd399a2be0e3448b0ed0e8486 menu-item-top-level menu-item-top-level-2' role='menuitem'><a href='https:\/\/www.iemn.fr\/en\/la-recherche\/les-groupes\/silphyde\/members'  ><span class='avia-bullet'><\/span><span class='avia-menu-text'>Members<\/span><\/a><\/li>\n<li class='menu-item av-av_submenu_item-8e1a366b5289a4655e340360bb600c95 menu-item-top-level menu-item-top-level-3' role='menuitem'><a href='https:\/\/www.iemn.fr\/en\/la-recherche\/les-groupes\/silphyde\/research'  ><span class='avia-bullet'><\/span><span class='avia-menu-text'>Research<\/span><\/a><\/li>\n<li class='menu-item av-kbk05k-5c5944fac313107f26dddee0ba9e2d5b menu-item-top-level menu-item-top-level-4' role='menuitem'><a href='https:\/\/www.iemn.fr\/en\/la-recherche\/les-groupes'  ><span class='avia-bullet'><\/span><span class='avia-menu-text'>Other groups<\/span><\/a><\/li>\n<\/ul><\/div><\/div><div id='after_submenu_1'  class='main_color av_default_container_wrap container_wrap sidebar_right'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-small alpha units'><div class='post-entry post-entry-type-page post-entry-25984'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_heading-ccb19032ee61fe78092aa1c3d3aa48a5\">\n#top .av-special-heading.av-av_heading-ccb19032ee61fe78092aa1c3d3aa48a5{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-av_heading-ccb19032ee61fe78092aa1c3d3aa48a5 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-av_heading-ccb19032ee61fe78092aa1c3d3aa48a5 .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-av_heading-ccb19032ee61fe78092aa1c3d3aa48a5 av-special-heading-h3  avia-builder-el-2  el_after_av_submenu  el_before_av_hr  avia-builder-el-first'><h3 class='av-special-heading-tag'  itemprop=\"headline\"  >Simulation of nitride-based electronic devices <\/h3><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div>\n<section  class='av_textblock_section av-jn5thlqu-c30e369e3089291d09a5932feaead29d'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>GaN and nitride-based wide gap materials are extremely promising for the realization of both high frequency and high power electronic devices. Some theoretical investigations have been performed in this context.<\/p>\n<p>1. In the framework of the ANR project SATELLITE (coordinator JC De Jaeger, head of PUISSANCE group), we developed Monte Carlo tools for studying electron transport in bulk nitride materials, heterostructures and HEMTs devices. As a byproduct of this work, we obtained transport parameters for these materials directly usable in device macroscopic modeling.<\/p>\n<p>2. The potential of vertical GaN transferred electron devices (TEDs) for the realization of RF power sources at THz frequencies has been evaluated by means of time-domain quasi-electrostatic modeling associated to energy-momentum macroscopic approach for the free electron transport modeling.<\/p>\n<p>Their RF properties fundamentally rely on the velocity-field characteristics of GaN exhibiting high mobility, large peak velocity and negative differential mobility. Theoretical investigations tend to demonstrate that mesa GaN TEDs operating in the accumulation layer transit time mode can be a candidate for the realization of RF low-power sources at 1 THz. However, this frequency must be considered as close to the maximum achievable one because of the limitation resulting from the device low negative resistance. The oscillator net performance will be dependent on the quality of the RF load circuit in terms of impedance matching capabilities and RF loss level. Moreover, the thermal limitation must be also considered. In fact, because of the required high DC bias conditions, only a strongly cooled CW or a pulsed RF operation seems achievable.<\/p>\n<p>3. A more prospective study is devoted to THz GaN planar distributed TEDs. Their RF operation is based on the interaction between an electromagnetic wave propagating in a plane parallel to the device epitaxial layers and electron moving perpendicularly under the accumulation layer and transit mode. Thus, the device active zone behaves as a negative resistance medium leading to the electromagnetic wave amplitude amplification. The device non-linear and complex RF operation is studied by means of a physical time-domain electromagnetic\/macroscopic transport model. The potential of THz full planar waveguide based oscillators is presently investigated. The expected DTED RF operation based on the amplification of a quasi-transverse electromagnetic wave has been confirmed.<\/p>\n<p>The modeling is now extended to the whole oscillator including the circuit elements constituting the external load circuit in order to account for and consequently optimize the active device\/ load circuit energy transfer.<\/p>\n<p>Another DTED oscillator structure based on the planar waveguide\/ output plasmonic waveguide technology is also under investigation.<\/p>\n<h4 style=\"text-align: center;\">Study of THz GaN planar Distributed Transferred Electron Devices<\/h4>\n<div id=\"attachment_25989\" style=\"width: 660px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/silphyde01_structure.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-25989\" class=\"wp-image-25989 size-full\" title=\"Structure and RF operating principle of Distributed Transferred Electron Device.\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/silphyde01_structure.png\" alt=\"Structure and RF operating principle of Distributed Transferred Electron Device.\" width=\"650\" height=\"192\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/silphyde01_structure.png 650w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/silphyde01_structure-300x89.png 300w\" sizes=\"auto, (max-width: 650px) 100vw, 650px\" \/><\/a><p id=\"caption-attachment-25989\" class=\"wp-caption-text\">Structure and RF operating principle of Distributed Transferred Electron Device.<\/p><\/div>\n<div id=\"attachment_26018\" style=\"width: 344px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/silphyde02_operation_device-1.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-26018\" class=\"wp-image-26018 size-full\" title=\"Operation of the device: amplification of a quasi-transverse electromagnetic wave C. Dalle, Int J Numer Model. 2018;31:e2213. https:\/\/doi.org\/10.1002\/jnm.2213\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/silphyde02_operation_device-1.jpg\" alt=\"Operation of the device: amplification of a quasi-transverse electromagnetic wave C. Dalle, Int J Numer Model. 2018;31:e2213. https:\/\/doi.org\/10.1002\/jnm.2213\" width=\"334\" height=\"249\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/silphyde02_operation_device-1.jpg 334w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/silphyde02_operation_device-1-300x224.jpg 300w\" sizes=\"auto, (max-width: 334px) 100vw, 334px\" \/><\/a><p id=\"caption-attachment-26018\" class=\"wp-caption-text\">Operation of the device: amplification of a quasi-transverse electromagnetic wave C. Dalle, Int J Numer Model. 2018;31:e2213. https:\/\/doi.org\/10.1002\/jnm.2213<\/p><\/div>\n<div id=\"attachment_25995\" style=\"width: 737px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/silphyde03_prospective_dted.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-25995\" class=\"wp-image-25995 size-full\" title=\"Prospective DTED (Distributed Transferred Electron Device) oscillator structure based on the planar waveguide\/ output plasmonic waveguide technology.\" src=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/silphyde03_prospective_dted.png\" alt=\"Prospective DTED (Distributed Transferred Electron Device) oscillator structure based on the planar waveguide\/ output plasmonic waveguide technology.\" width=\"727\" height=\"212\" srcset=\"https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/silphyde03_prospective_dted.png 727w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/silphyde03_prospective_dted-300x87.png 300w, https:\/\/www.iemn.fr\/wp-content\/uploads\/2018\/10\/silphyde03_prospective_dted-705x206.png 705w\" sizes=\"auto, (max-width: 727px) 100vw, 727px\" \/><\/a><p id=\"caption-attachment-25995\" class=\"wp-caption-text\">Prospective DTED (Distributed Transferred Electron Device) oscillator structure based on the planar waveguide\/ output plasmonic waveguide technology.<\/p><\/div>\n<\/div><\/section>\n<div  class='av_promobox av-js09a3uo-95c6a6ac9fb24e9e4d24e2dec1561c1b avia-button-no'><div class='avia-promocontent'><p>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-w73dns-418873852a2a8329b913b5be35537f92\">\n.av_font_icon.av-w73dns-418873852a2a8329b913b5be35537f92 .av-icon-char{\nfont-size:25px;\nline-height:25px;\n}\n<\/style>\n<span  class='av_font_icon av-w73dns-418873852a2a8329b913b5be35537f92 avia_animate_when_visible av-icon-style- avia-icon-pos-left av-no-color avia-icon-animate'><span class='av-icon-char' aria-hidden='true' data-av_icon='\ue87f' data-av_iconfont='entypo-fontello' ><\/span><\/span><\/p>\n<p><strong>SILPHYDE Group : OTHER ACTIVITIES<\/strong><\/p>\n<ul>\n<li class=\"page_item page-item-25999\"><a href=\"https:\/\/www.iemn.fr\/en\/la-recherche\/les-groupes\/silphyde\/research\/modeling-of-thz-sources\/\">Modeling of THz sources based on Quantum Cascade Lasers<\/a><\/li>\n<li class=\"page_item page-item-26023\"><a href=\"https:\/\/www.iemn.fr\/en\/la-recherche\/les-groupes\/silphyde\/research\/study-nanostructures\/\">Study of ferroelectric nanostructures<\/a><\/li>\n<li class=\"page_item page-item-26043 current_page_item\"><a href=\"https:\/\/www.iemn.fr\/en\/la-recherche\/les-groupes\/silphyde\/research\/monte-carlo-simulation\/\">Monte Carlo simulation of 2D materials for electronic and spintronic applications<\/a><\/li>\n<\/ul>\n<p>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":0,"parent":25981,"menu_order":5,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-25984","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/pages\/25984","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/comments?post=25984"}],"version-history":[{"count":0,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/pages\/25984\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/pages\/25981"}],"wp:attachment":[{"href":"https:\/\/www.iemn.fr\/en\/wp-json\/wp\/v2\/media?parent=25984"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}