{"id":314736,"date":"2023-11-03T12:02:20","date_gmt":"2023-11-03T12:02:20","guid":{"rendered":"\/forum\/forums\/topic\/lumerical-charge-meaning-of-decreasing-free-charge\/"},"modified":"2023-11-03T12:02:20","modified_gmt":"2023-11-03T12:02:20","slug":"lumerical-charge-meaning-of-decreasing-free-charge","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/lumerical-charge-meaning-of-decreasing-free-charge\/","title":{"rendered":"Lumerical CHARGE) meaning of decreasing free charge"},"content":{"rendered":"<p>Hello,<\/p>\n<p>&nbsp;<\/p>\n<p>Currently I&#8217;m running CHARGE simulation to see charge transport at some semiconductor.<\/p>\n<p>Acutally it is designated as semiconductor but its material parameters(for example, bandgap) which are those of some insulator.<\/p>\n<p>My model&#8217;s structure is &#8220;Metal-semiconductor-metal&#8221;, ground bias at one metal, and negative sweep bias to the other end.&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>And &#8220;free charge&#8221; attribute in visualizer shows decreasing profile, gradually going to reaching to positive value.&nbsp;<\/p>\n<p>According to description, free charge is &#8216;p-n&#8217;, so it means that electrons are being drained out.<\/p>\n<p>Why is that happening, even though I applied negative bias?&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>Thanks,<\/p>\n<p>Sungmin<\/p>\n","protected":false},"template":"","class_list":["post-314736","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["27378","33648"],"_bbp_author_ip":["23.52.43.88"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["320"],"_bbp_likes_count":["1"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["314736"],"_bbp_forum_id":["27833"],"_bbp_engagement":["27378","33648"],"_bbp_voice_count":["2"],"_bbp_reply_count":["12"],"_bbp_last_reply_id":["319894"],"_bbp_last_active_id":["319894"],"_bbp_last_active_time":["2023-11-29 03:54:13"]},"test":"sungmin-yoonkaist-ac-kr"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/314736","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/314736\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=314736"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}